Database-oriented trigger creation and migration method, system, equipment and medium

Abstract

The invention provides a database-oriented trigger creation and migration method, system and device and a medium, and belongs to the technical field of computers. The method comprises the following steps: designing a standardized configuration file template by analyzing grammatical differences of different databases; generating a configuration file of a trigger by using the standardized configuration file template, mapping the configuration file into a program internal object, and generating a trigger creation statement of the target database according to the database type; after database connection is established, a trigger creation statement is dynamically executed, and a trigger is created in the target database; and by modifying the database type field in the configuration file, regenerating a trigger statement adaptive to the new database, and migrating the trigger. According to the method, the standardized configuration file template is designed, and the database trigger creation statement is dynamically generated and executed by utilizing the internal object of the program, so that the efficient creation and flexible migration of the trigger of the database system are realized, and the automation and compatibility of database management are improved.

Description

Technical Field

[0001] The present invention belongs to the field of computer technology, and more particularly relates to a method, system, device and medium for creating and migrating triggers for a database. Background Art

[0002] With the rapid development of information technology, modern information systems increasingly rely on distributed database architectures to meet the growing data storage and processing requirements. The popularity of this architecture has brought significant flexibility and scalability, but at the same time has also posed a series of new challenges, especially in the creation and migration of triggers. Triggers, as stored programs in a database management system used to automatically respond to specific events (such as insert, update or delete operations), are crucial for maintaining data integrity, implementing business rules and automating workflows. However, in a multi-database environment, the effective management and migration of triggers face many difficulties.

[0003] Firstly, maintenance complexity is a major challenge in the current multi-database architecture. With the expansion of enterprise business and the explosion of data volume, a single database system often struggles to meet all performance, availability and compliance requirements. Therefore, it has become common practice to use a mix of multiple database systems (such as Oracle, MySQL, PostgreSQL, SQL Server, etc.). This multi-database, multi-data source architecture not only increases the complexity of monitoring, backup, recovery and security policy implementation, but also makes the maintenance of triggers particularly difficult. The traditional way of manually writing and configuring trigger scripts is not only time-consuming and laborious, but also error-prone. Especially in large-scale and high-concurrency environments, manual management is almost infeasible. In addition, the lack or immaturity of automated operation and maintenance tools further limits the efficiency and consistency of trigger management.

[0004] Secondly, human operation errors are another problem that cannot be ignored. During the creation and migration of triggers, human operation mistakes (such as accidental deletion, misconfiguration or improper permission settings) may lead to serious data loss or security vulnerabilities. As the database architecture becomes increasingly complex, the scope of influence of a single point of failure continues to expand. Once a trigger configuration error occurs, the consequences can be catastrophic. Moreover, in a complex database environment, it is often more difficult to locate and fix such problems. In addition, the lack of regular code review and refactoring will lead to the accumulation of technical debt, thereby reducing the stability and reliability of the system and increasing the risk of small errors evolving into big problems.

[0005] Finally, cross-database compatibility is another major challenge in trigger creation and migration. Different database systems have their own unique SQL dialects and feature sets, which makes it extremely difficult to migrate or create consistent triggers across different databases. Even if some degree of compatibility is achieved at the syntax level, the optimization strategies and performance characteristics of different databases will vary. Therefore, when migrating triggers from one database system to another, additional adjustments and optimizations are often required to ensure their performance and stability. Although there are some database abstraction layers and ORM frameworks in the market that simplify database operations to some extent, when dealing with highly customized business logic, these tools are often inadequate and still require developers to make a large number of manual adjustments.

[0006] In summary, the creation and migration of triggers in the current multi-database environment face challenges in terms of maintenance complexity, human operation errors, and cross-database compatibility. Summary of the Invention

[0007] In view of the above problems, the purpose of the present invention is to provide a method, system, device, and medium for creating and migrating database-oriented triggers. By designing a standardized configuration file template and using program internal objects to dynamically generate and execute database trigger creation statements, the efficient creation and flexible migration of triggers for different database systems are realized, and the automation and compatibility of database management are improved.

[0008] To achieve the above object, the present invention is realized through the following technical solutions: In a first aspect, an embodiment of the present application provides a method for creating and migrating database-oriented triggers, including: Designing a standardized configuration file template by analyzing the syntax differences of different databases; Using the standardized configuration file template to generate a configuration file for the trigger, mapping the configuration file to a program internal object, and generating a trigger creation statement for the target database according to the database type; Dynamically executing the trigger creation statement after establishing a database connection to create a trigger in the target database; Migrating the trigger by modifying the database type field in the configuration file and regenerating a trigger statement adapted to the new database.

[0009] In an optional embodiment, the step of designing a standardized configuration file template by analyzing the syntax differences of different databases includes: Collecting technical documents of different database systems to clarify the syntax differences and function supports of triggers in each system; Create a standardized configuration file template. The core attributes of the standardized configuration file template include: database type, trigger type, trigger event, trigger timing, trigger operation, trigger object, and trigger frequency. Reserve a dedicated field in the standardized configuration file template for storing the syntax extension requirements of a specific database.

[0010] In an optional implementation, mapping the configuration file to an internal program object and generating a trigger creation statement for the target database according to the database type includes: Convert the content of the configuration file into an internal program object through field mapping annotations in the programming language. Select the corresponding database adapter according to the database type and convert the internal program object into a trigger creation statement for the target database.

[0011] In an optional implementation, after establishing a database connection, dynamically execute the trigger creation statement to create a trigger in the target database, including: Communicate with the target database through a standard interface and verify the communication permission and database compatibility. Send the trigger creation statement to the target database for execution, capture the execution exception, and record it in the exception log.

[0012] In an optional implementation, migrate the trigger by modifying the database type field in the configuration file and regenerating the trigger statement adapted to the new database, including: In the database type field of the configuration file, update the current database identifier to the new database identifier and regenerate the trigger creation statement. Call the database adapter of the new database for syntax difference conversion. If the new database needs to add the logic of referencing a temporary table, add the corresponding configuration in the dedicated field of the trigger creation statement. Execute the trigger creation statement in the new database.

[0013] In an optional implementation, designing the standardized configuration file template by analyzing the syntax differences of different databases further includes: Use a text editor or a data schema validation tool to create the standardized configuration file template and validate the data structure.

[0014] In an optional implementation, communicating with the target database through a standard interface and verifying the communication permission and database compatibility includes: Use the built-in database connection module in the programming language to create a connection object based on the connection address, port, database name, username, and password of the target database to establish a communication channel. If the username or password is incorrect, the database actively returns a permission exception. By catching the permission exception and logging, the user is prompted to check the permission configuration; By querying the version information of the target database and comparing it with the range of database versions supported by the adaptation module, version compatibility is ensured.

[0015] In a second aspect, an embodiment of the present application further provides a trigger creation and migration system for a database, including: A template generation module for designing a standardized configuration file template by analyzing the syntax differences of different databases; A trigger creation statement generation module for using the standardized configuration file template to generate a configuration file for the trigger, mapping the configuration file to an internal object of the program, and generating a trigger creation statement for the target database according to the database type; A trigger creation module for dynamically executing the trigger creation statement after establishing a database connection to create a trigger in the target database; A trigger migration module for regenerating a trigger statement adapted to the new database by modifying the database type field in the configuration file to perform trigger migration.

[0016] In a third aspect, an embodiment of the present application further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the steps of the trigger creation and migration method for a database as described in any one of the above are implemented.

[0017] In a fourth aspect, an embodiment of the present application further provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the trigger creation and migration method for a database as described in any one of the above are implemented.

[0018] From the above technical solutions, the following advantages of the present invention can be seen: In the method for creating and migrating database-oriented triggers provided by this application, the syntax differences of each database system are deeply analyzed first, ensuring the wide applicability and high standardization of the configuration file template. During the trigger creation process, using field mapping annotations in programming languages, the content of the configuration file is seamlessly converted into internal program objects, and then the corresponding database adapter is selected according to the target database type to generate trigger creation statements that meet specific syntax requirements. This process not only greatly improves the automation degree of trigger creation, but also significantly enhances the flexibility and scalability of the system. At the same time, communication with the target database is established through a standard interface, and the communication permissions and database compatibility are strictly verified to ensure the smooth deployment and stable operation of the trigger in the target database. It can be seen that this method provides strong technical support for the efficient creation and flexible migration of database triggers.

[0019] By designing a standardized configuration file template and collecting the syntax differences of different databases, this application realizes the unified management and operation of different database systems. At the same time, the database type field in the configuration file can be flexibly modified, enabling the trigger to be easily migrated to a new database, improving the flexibility and scalability of the system.

[0020] This application uses the configuration file to generate trigger creation statements and realizes the mapping and conversion of the configuration file through programming languages, achieving the automated creation of triggers. This not only reduces the workload of manually writing trigger statements, but also improves the creation efficiency and accuracy. At the same time, dynamically executing the trigger creation statement also accelerates the trigger deployment process.

[0021] When establishing a database connection, this application communicates with the target database through a standard interface and verifies the communication permissions and database compatibility. This ensures that the trigger can be correctly executed in the target database, avoiding errors caused by insufficient permissions or version incompatibility. In addition, capturing execution exceptions and recording them in the exception log helps to detect and solve problems in a timely manner, improving the reliability of the system.

[0022] By using a standardized configuration file template, this application makes the configuration and management of triggers simpler and more intuitive. By modifying the relevant fields in the configuration file, the modification and optimization of the trigger can be achieved. At the same time, this application also supports the syntax extension requirements of specific databases, providing more possibilities for database customization and optimization. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 This is a schematic flowchart of the method for creating and migrating database-oriented triggers provided by this application.

[0025] Figure 2 This is a schematic flowchart of the trigger migration method provided by this application.

[0026] Figure 3 This is a schematic structural diagram of the system for creating and migrating database-oriented triggers provided by this application.

[0027] Figure 4 This is a schematic structural diagram of the electronic device provided by this application. Detailed implementation manners

[0028] In the following, various embodiments of the present disclosure will be more fully described in the specific steps of the method for creating and migrating database-oriented triggers to be described in detail below. The present disclosure can have various embodiments and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present disclosure to the specific embodiments disclosed herein, but the present disclosure should be understood to cover all adjustments, equivalents and / or alternative solutions falling within the spirit and scope of the various embodiments of the present disclosure.

[0029] Hereinafter, the term "comprising" or "may comprise" that can be used in various embodiments of the present disclosure indicates the presence of the disclosed functions, operations or elements, and does not limit the addition of one or more functions, operations or elements. In addition, as used in various embodiments of the present disclosure, the terms "comprising", "having" and their cognates are only intended to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be construed as precluding the existence or addition of the presence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items.

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1 The following shows a method flowchart of a method for creating and migrating database-oriented triggers in a specific embodiment. The method includes: S1: Design a standardized configuration file template by analyzing the syntax differences of different databases.

[0032] In the specific implementation, this step specifically includes the following processes: S101: By systematically organizing the official technical documents and specifications of the target database (such as Oracle, MySQL, PostgreSQL, etc.), clarify the support for triggers and syntax differences in each database.

[0033] Specifically, it includes the following content: Syntax difference analysis: Compare the keyword differences in the trigger definitions of different databases. For example, the representation methods of trigger timing (such as BEFORE the operation and AFTER the operation), the binding rules of trigger events (such as single-event or multi-event binding), and the logic of temporary table reference (such as the way to reference old data or new data).

[0034] Function support scope: Clarify the support degrees of each database for trigger frequency, row-level trigger and statement-level trigger, and whether it is allowed to call stored procedures or complex business logics in the trigger.

[0035] Data type mapping table: Organize the corresponding relationships of field types in different databases. For example, the names and storage rule differences of date and time types, string types, and numerical types, providing a basis for subsequent syntax conversion.

[0036] S102: Create a standardized configuration file template, and the core attributes of the standardized configuration file template include: database type, trigger type, trigger event, trigger timing, trigger operation, trigger object, trigger frequency.

[0037] For example, based on the analysis results, define a set of general JSON configuration file templates, and use a hierarchical structure to describe the core attributes of the trigger, specifically including: Database type: Identify the category of the target database (such as MySQL, Oracle), which is used for the dynamic selection of the subsequent adaptation module.

[0038] Trigger name: Define the unique identification name of the trigger.

[0039] Trigger type: Distinguish the execution granularity of the trigger (such as row-level trigger FOR EACH ROW or statement-level trigger FOREACH STATEMENT).

[0040] Trigger event: Define the specific event types of the trigger operation, including data insertion INSERT, update UPDATE, and deletion DELETE.

[0041] Trigger timing: Specify the execution time point of the trigger (such as BEFORE the operation or AFTER the operation).

[0042] Trigger operation: Describe the specific logic executed by the trigger, which may include directly embedded SQL statements or instructions to call external stored procedures.

[0043] Trigger object: Identify the database object to which the trigger is bound, such as a table name or view name.

[0044] Trigger frequency: For scenarios that require periodic triggering, define the trigger conditions or time intervals (such as daily scheduled execution). If periodic triggering is not required, mark it as "not applicable".

[0045] S103: Reserve dedicated fields in the standardized configuration file template to store the syntax extension requirements of specific databases.

[0046] For example, design dedicated fields (such as extended configuration) in the standardized configuration file template to store the syntax extension requirements of specific databases. For example: For the MySQL database: Support for multi-statement delimiters (such as the DELIMITER command) is required.

[0047] For the Oracle database: Support for referencing temporary tables (such as REFERENCING NEW AS new) is required.

[0048] For the PostgreSQL database: Support for function call syntax (such as EXECUTE FUNCTION) is required.

[0049] By reserving fields, ensure that the standardized configuration file template can be flexibly adapted to the syntax features of different databases, avoiding the invalidation of the template due to database version upgrades or function extensions.

[0050] S2: Use the standardized configuration file template to generate the trigger configuration file, map the configuration file to an internal program object, and generate the trigger creation statement for the target database according to the database type.

[0051] In the specific implementation, this step specifically includes the following processes: S201: Convert the configuration file content into an internal program object through field mapping annotations in the programming language.

[0052] For example, first create a class structure corresponding to the configuration file template level, such as a "database configuration class" and a "trigger configuration class", ensuring that each class attribute corresponds to a configuration file field one by one. Then, use field mapping annotations (such as @field binding) to associate the key names in the configuration file with the class attributes, ensuring the consistency of field names and data types during the parsing process. For example, the "database type" field in the configuration file is mapped to the "database type" attribute of the program object.

[0053] Finally, during the parsing process, check whether the required fields exist. If a key attribute (such as a trigger event or operation logic) is missing, throw a configuration exception and terminate the process.

[0054] S202: Select the corresponding database adapter according to the database type, and convert the internal objects of the program into the trigger creation statements for the target database.

[0055] Exemplarily, according to the "database type" field in the configuration file, dynamically select the corresponding adaptation module to complete the following operations: Design a unified adapter interface, define the core method for generating trigger statements, and different database types implement this interface (such as "commercial database adapter", "open source database adapter").

[0056] The adaptation module splices the complete trigger creation statement according to the syntax rules of the target database. For example: For the MySQL database: Add the FOR EACH ROW clause to the statement and wrap the BEGIN...END block to support multi-line operation logic.

[0057] For the Oracle database: Add the REFERENCING clause to the statement to reference the temporary table and handle the row-level trigger logic.

[0058] When performing data type conversion, automatically convert the field types in the operation logic. For example, convert the NOW() function in MySQL to the SYSTIMESTAMP function in Oracle.

[0059] S3: After establishing a database connection, dynamically execute the trigger creation statement to create a trigger in the target database.

[0060] In the specific implementation manner, this step specifically includes the following process: S301: Communicate with the target database through a standard interface, and verify the communication permissions and database compatibility.

[0061] Exemplarily, first generate a connection string according to the address, port, name, username, and password of the target database. The additional parameters may include the character set, timeout, or encryption protocol. When attempting to establish a connection, if the username or password is incorrect, the database returns a permission exception, and the program catches this exception and records the detailed error information. Finally, execute the database version query instruction (such as "query version number"), obtain the current database version, and compare it with the version range supported by the adaptation module. If the versions are incompatible, throw an exception and prompt the user to upgrade the database or adjust the configuration.

[0062] S302: Send the trigger creation statement to the target database for execution, catch the execution exception, and record it in the exception log.

[0063] Exemplarily, first, check the SQL syntax legality through the pre-parse interface of the database. If there are syntax errors (such as missing keywords or incorrect table names), an exception is thrown in advance and a prompt for correction is given. Then, execute the SQL statement within the database transaction to ensure automatic rollback in case of execution failure, avoiding data inconsistency caused by partial success. For example, if an error occurs during the trigger creation process, roll back all uncommitted operations. At the same time, capture exceptions during the execution process (such as insufficient permissions, object does not exist), record the exception type, error description, and occurrence time in the log file for subsequent troubleshooting and analysis.

[0064] S4: By modifying the database type field in the configuration file, regenerate the trigger statement adapted to the new database to perform the trigger migration.

[0065] In the specific implementation manner, this step specifically includes: Modify the database type identifier: Adjust the database type field in the configuration file (such as changing from an open-source database to a commercial database).

[0066] Regenerate the target statement: Call the processing module of the corresponding database to automatically convert the syntax differences (such as the trigger frequency implementation method or the temporary table reference logic).

[0067] In this embodiment, through in-depth analysis of the database syntax differences, designing a standardized configuration file template, and using technical means such as field mapping annotations, dynamically executing the trigger creation statement, and flexibly modifying the configuration file, the efficient automatic creation and flexible cross-database migration of database triggers are realized, significantly improving the convenience of database management and the scalability of the system.

[0068] In an embodiment of the present invention, based on step S4, a possible embodiment will be given below to non-restrictively elaborate on its specific implementation scheme.

[0069] Refer to Figure 2 As shown, this embodiment discloses a trigger migration method, which specifically includes the following steps: S401: In the database type field of the configuration file, update the current database identifier to the new database identifier and regenerate the trigger creation statement.

[0070] Exemplarily, in the configuration file, modify the value of the "database type" field from the original database (such as an open-source database) to the target database (such as a commercial database).

[0071] S402: Call the database adapter of the new database to perform syntax difference conversion. If the new database needs to add the reference temporary table logic, add the corresponding configuration in the dedicated field of the trigger creation statement.

[0072] Exemplarily, call the adaptation module of the target database (such as a commercial database adapter) to generate an adapted SQL statement according to the new configuration. If the target database requires special syntax (such as temporary table reference), add the corresponding rule in the "extended configuration" field of the configuration file, and the adaptation module reads this field and splices it into the SQL statement. At the same time, only update the modified fields (such as trigger timing or operation logic) in the configuration file, avoid regenerating the trigger in full volume, and reduce the migration time and resource consumption.

[0073] S403: Execute the trigger creation statement in the new database.

[0074] Exemplarily, execute the generated SQL statement in the new database through the process of step S3 to complete the trigger migration. After the migration is completed, the following verifications need to be carried out: Function verification: Manually trigger the target event (such as updating the data of the bound table), and check whether the trigger performs the operation as expected (such as inserting an audit record).

[0075] Consistency check: Compare the trigger behaviors of the original database and the target database to ensure logical consistency and data integrity.

[0076] As Figure 3 shown, the following is an embodiment of a database-oriented trigger creation and migration system provided by the present disclosure. This system and the database-oriented trigger creation and migration methods of the above embodiments belong to the same inventive concept. For the details not described in detail in the embodiment of the database-oriented trigger creation and migration system, reference can be made to the embodiments of the database-oriented trigger creation and migration methods above.

[0077] A database-oriented trigger creation and migration system includes: a template generation module, a trigger creation statement generation module, a trigger creation module, and a trigger migration module.

[0078] The template generation module is used to design a standardized configuration file template by analyzing the syntax differences of different databases.

[0079] The trigger creation statement generation module is used to generate a configuration file of the trigger by using the standardized configuration file template, map the configuration file to an internal object of the program, and generate a trigger creation statement for the target database according to the database type.

[0080] The trigger creation module is used to dynamically execute the trigger creation statement after establishing a database connection to create a trigger in the target database.

[0081] The trigger migration module is used to regenerate a trigger statement adapted to the new database by modifying the database type field in the configuration file to perform the migration of the trigger.

[0082] The trigger creation and migration system for databases provided in this embodiment deeply analyzes the syntax features of different databases and designs a standardized configuration file template accordingly. It uses the field mapping annotation technology in programming languages to accurately map the configuration file to internal program objects, then intelligently selects an appropriate database adapter according to the target database type to generate trigger creation statements that meet its syntax requirements, and can dynamically execute these statements after establishing a communication connection with the target database, thus realizing the efficient and automatic creation of triggers and flexible cross-database migration. At the same time, by simply modifying the database type field in the configuration file, trigger statements adapted to the new database can be regenerated, further improving the convenience of database management and the scalability of the system.

[0083] Figure 4 Schematic diagram of the hardware structure of an electronic device for implementing each embodiment of the present invention.

[0084] The method for creating and migrating triggers for databases provided in the embodiments of this application can be applied to electronic devices. Those skilled in the art can understand that the structure of the electronic device involved in the embodiments of the present invention does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements. In the embodiments of the present invention, the electronic device includes, but is not limited to, laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the embodiments of this application described herein and / or claimed.

[0085] The electronic device may include a processor, an external memory interface, an internal memory, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, a wireless communication module, an audio module, a speaker, a microphone, a sensor module, keys, a camera, a display screen, and a SIM card interface, etc.

[0086] The processor may include one or more processing units. For example, the processor may include a central processing unit (CPU), an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Among them, different processing units may be independent devices or integrated in one or more processors.

[0087] Among them, the processor may be the nerve center and command center of the electronic device. The controller may generate operation control signals according to the instruction operation code and timing signal to complete the control of fetching and executing instructions.

[0088] A memory may also be provided in the processor for storing instructions and data. In some embodiments, the memory in the processor is a cache memory. This memory can save the instructions or data just used or recycled by the processor. If the processor needs to use the instruction or data again, it can be directly called from this memory. This avoids repeated accesses, reduces the waiting time of the processor, and thus improves the system efficiency.

[0089] The external memory interface can be used to connect an external memory card, such as a MicroSD card, to expand the storage capacity of the electronic device. The external memory card communicates with the processor through the external memory interface to achieve the data storage function. For example, files such as music and videos are saved in the external memory card.

[0090] The internal memory can be used to store computer-executable program code, and the computer-executable program code includes instructions. The processor executes various functional applications and data processing of the electronic device by running the instructions stored in the internal memory. The internal memory may include a program storage area and a data storage area. The internal memory may include a high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc.

[0091] The wireless communication function of the electronic device can be implemented through an antenna, a wireless communication module, a modem processor, a baseband processor, etc.

[0092] The wireless communication module can provide solutions for wireless communications applied to electronic devices, including wireless local area networks (WLANs) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite systems (GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (IR), etc.

[0093] The electronic device can implement audio functions through an audio module, speaker, receiver, microphone, headphone jack, and application processor, etc.

[0094] The electronic device can implement shooting functions through an ISP, camera, video codec, GPU, display screen, and application processor, etc.

[0095] The electronic device can implement display functions through a GPU, display screen, and application processor, etc.

[0096] The GPU is a microprocessor for image processing, connecting the display screen and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor may include one or more GPUs, which execute program instructions to generate or change display information.

[0097] The display screen is used to display images, videos, etc. The display screen includes a display panel.

[0098] The above electronic device realizes the method for creating and migrating database-oriented triggers in this application. By deeply analyzing database syntax differences and designing a standardized configuration file template, and combining field mapping annotations with database adapter technology, it realizes the efficient automatic creation and flexible cross-database migration of triggers, achieving the beneficial effects of significantly improving the convenience of database management and enhancing the scalability of the system.

[0099] In the storage medium provided in this application, there is a program product capable of realizing the method for creating and migrating database-oriented triggers.

[0100] The method for creating and migrating database-oriented triggers includes: analyzing the syntax differences of different databases to design a standardized configuration file template; using the standardized configuration file template to generate a configuration file for the trigger, mapping the configuration file to an internal object of the program, and generating a trigger creation statement for the target database according to the database type; dynamically executing the trigger creation statement after establishing a database connection to create a trigger in the target database; and migrating the trigger by modifying the database type field in the configuration file and regenerating the trigger statement adapted to the new database.

[0101] In some possible implementation manners, the method for creating and migrating database-oriented triggers of the present disclosure may be implemented in the form of a program product, which includes program code. When the program product runs on a terminal device, the program code is used to cause the terminal device to execute the steps according to various exemplary embodiments of the present disclosure described in the "Exemplary Method" section above in this specification.

[0102] The storage medium of the present disclosure may adopt any combination of one or more readable media. The readable media may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0103] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for creating and migrating database-oriented triggers, characterized in that, Including: Design a standardized configuration file template by analyzing the syntax differences of different databases; Generate a configuration file for the trigger using the standardized configuration file template, map the configuration file to an internal object of the program, and generate a trigger creation statement for the target database according to the database type; Dynamically execute the trigger creation statement after establishing a database connection to create a trigger in the target database; Migrate the trigger by modifying the database type field in the configuration file and regenerating the trigger statement adapted to the new database.

2. The method for creating and migrating database-oriented triggers according to claim 1, wherein The step of designing a standardized configuration file template by analyzing the syntax differences of different databases includes: Collect technical documents of different database systems to clarify the syntax differences and function supports of triggers in each system; Create a standardized configuration file template, and the core attributes of the standardized configuration file template include: database type, trigger type, trigger event, trigger timing, trigger operation, trigger object, trigger frequency; Reserve dedicated fields in the standardized configuration file template for storing the syntax extension requirements of specific databases.

3. The method for creating and migrating database-oriented triggers according to claim 2, characterized in that, The step of mapping the configuration file to an internal object of the program and generating a trigger creation statement for the target database according to the database type includes: Convert the content of the configuration file into an internal object of the program through field mapping annotations in the programming language; Select the corresponding database adapter according to the database type and convert the internal object of the program into a trigger creation statement for the target database.

4. The method for creating and migrating database-oriented triggers according to claim 3, characterized in that The step of dynamically executing the trigger creation statement after establishing a database connection to create a trigger in the target database includes: Communicate with the target database through a standard interface and verify the communication permission and database compatibility; Send the trigger creation statement to the target database for execution, capture the execution exception, and record it in the exception log.

5. The method for creating and migrating database-oriented triggers according to claim 4, wherein The step of migrating the trigger by modifying the database type field in the configuration file and regenerating the trigger statement adapted to the new database includes: In the database type field of the configuration file, update the current database identifier to the new database identifier and regenerate the trigger creation statement; Call the database adapter of the new database for syntax difference conversion. If the new database needs to add the logic of referencing a temporary table, add the corresponding configuration in the dedicated field of the trigger creation statement; Execute the trigger creation statement in the new database.

6. The method for creating and migrating database-oriented triggers according to claim 2, wherein The step of designing a standardized configuration file template by analyzing the syntax differences of different databases further includes: Create a standardized configuration file template using a text editor or a data schema validation tool and verify the data structure.

7. The method for creating and migrating database-oriented triggers according to claim 4, characterized in that, The step of communicating with the target database through a standard interface and verifying the communication permission and database compatibility includes: Use the built-in database connection module of the programming language to create a connection object to establish a communication channel according to the connection address, port, database name, username, and password of the target database; If the username or password is incorrect, the database actively returns a permission exception. By capturing the permission exception and recording the log, prompt the user to check the permission configuration; Compare the version information of the target database with the supported database version range of the adaptation module to ensure version compatibility.

8. A trigger creation and migration system for a database, characterized in that, The system adopts the method for creating and migrating database-oriented triggers as described in any one of claims 1 to 7; The system includes: A template generation module, configured to design a standardized configuration file template by analyzing the syntax differences of different databases; A trigger creation statement generation module, configured to generate a configuration file of a trigger by using the standardized configuration file template, map the configuration file to an internal object of the program, and generate a trigger creation statement for the target database according to the database type; A trigger creation module, configured to dynamically execute the trigger creation statement after establishing a database connection, and create a trigger in the target database; A trigger migration module, configured to regenerate a trigger statement adapted to the new database by modifying the database type field in the configuration file, and perform trigger migration.

9. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method for creating and migrating database-oriented triggers as described in any one of claims 1 to 7.

10. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method for creating and migrating database-oriented triggers as described in any one of claims 1 to 7.

Images