10 results about "Real time database systems" patented technology

The application discloses a dynamic real-time transaction scheduling method and system, which breaks the limitation of pre-defined transactions and periodic scheduling, and enables real-time transactions to be dynamically scheduled according to actual requirements without pre-defined transactions through twice priority sorting, ensures that the transactions are completed before the deadline, and significantly improves the flexibility and real-time performance of the system; on the basis of the double loop structure of the database working thread, a multi-version concurrent access strategy and a shadow node strategy based on priority inheritance are introduced, so that the real-time database system can operate more efficiently under complex transaction load, and the real-time response capability is further enhanced; priority allocation and blocking management of the transaction are performed by using the characteristics of the real-time operating system, so that the real-time performance of the real-time operating system is not damaged in the transaction scheduling process, and the efficient response capability of the system is maintained; and the application also provides a system for implementing the method.

Aspects of the invention include techniques for providing a schema evolution on a live database system without an outage. A non-limiting example method includes initiating a schema change on a live database system. The schema change includes an attribute for a database object. A first application package having a user application that is dependent on the database object and that is bound with a release(deallocate) option is identified. Existing threads and new threads executing the first application package are routed to execute the first application package with a release(commit) option and the schema change on the live database system is completed. One or more additional threads concurrently executing one or more additional application packages remain executing with the release(deallocate) option.

This invention relates to a method, system, device, and medium for synchronizing configuration data in a real-time database system. The method includes: when a configuration client publishes configuration data for configuration updates, the business configuration synchronization modules of each node in the business subsystem receive the configuration data distributed by the configuration server and synchronize the configuration data to their respective nodes according to a configuration update strategy. When a user publishes configuration updates to various business subsystems of the real-time database, the configuration server synchronizes data with one or more first-level nodes in the system. Then, the first-level nodes synchronize data with their subscribed slave nodes. The subscribed slave nodes select the node with the highest version and latest priority from among the subscribed first-level nodes as the update data source. This invention, based on the interconnection of various configuration business nodes and using a multi-master, multi-slave strategy and a multi-stage publishing mechanism, ensures high availability and high performance of real-time database configuration distribution.

The invention provides an advanced computing engine and method based on graphical configuration and a real-time database system, and the engine comprises a model building module which is used for building a visual model by dragging and connecting graphical configuration elements through a mouse; the data acquisition module is used for determining a calculation object and acquiring parameter information of the calculation object from the real-time database by using the read-write communication component; the advanced calculation module is used for associating parameter information of a calculation object, downloading a calculation task and carrying out advanced calculation on a visual model built based on a graphical configuration element; and the storage management module is used for writing the calculation result of the advanced calculation module back to the real-time database of the calculation object by using the read-write communication component. According to the method, various complex data processing and calculation tasks are completed by means of the read-write communication component specially used for real-time database interaction in a mode of quickly building a visual model for calculation by using graphical configuration, and the functions of high-speed calculation, real-time output and the like of a large amount of real-time data are realized.

The invention relates to a full-process quality tracing method for special steel bars, and belongs to the technical field of steelmaking quality control methods. According to the technical scheme, a production and manufacturing execution system formulates a production scheduling plan, collects process production actual performance of a secondary system and receives process detection parameters of an inspection and test system; and the process quality management system is in butt joint with the production and manufacturing execution system database, synchronizes the production actual performance and the detection actual performance, and matches the real-time data of the real-time database system at the same time. The beneficial effects of the invention are that through the intercommunication of the production and manufacturing execution system, the real-time database system and the process quality management system, the unified query of the produced batch number, the production actual performance, the inspection actual performance and the real-time parameters and the tracing of the production process are supported.

System and method including a database (DB) engine configured to access a DB, the DB engine and the DB configured based on a data locality configuration of a plurality of data locality configurations, the data locality configuration being associated with a first server. The DB engine is configured to process access requests and be inactive outside of processing the access requests. The system includes a data interface configured to receive access requests associated with the DB and retrieve results of the access requests. The system includes a software module configured to download a first DB version from remote storage to local storage, and enable uploading a local second DB version to the remote storage. Uploading the second DB version to remote storage can comprise comparing a generation ID for a downloaded DB version with a most recent generation ID of a most recent DB version stored at the remote storage.

Systems and techniques for are described herein. A data change event is received that is related to account activity of a user in a computer application. The data change event is logged in an event table stored within a transactional database. The data change event is processed to determine an updated count related to a UI badge. A message is sent that contains the updated count from a batch process to a message broker. The message broker distributes the message to a real-time database system. The updated count is transmitted from the real-time database system to a user interface. The user interface displays the UI badge. The updated count is displayed in real-time on the UI badge.

This invention relates to a data modeling technology, specifically a multi-module integrated real-time database system. It includes multiple parallel magnetic core memories, each comprising a synchronization host that establishes unidirectional communication with multiple application systems via a filtering channel controller. The magnetic core memories also include a memory database that interacts with the synchronization host. The synchronization host is also connected to multiple data interfaces for real-time data acquisition and supports multiple real-time data acquisition sources. By constructing a distributed memory database using the synchronization host, memory database, and filtering channel controller, a large amount of real-time data is first received and stored in memory. The memory data is then instantiated in a process-by-process manner, forming a system architecture with excellent scalability. The overall system performance can be adjusted by adding a corresponding number of magnetic core memories according to actual application requirements.

The disclosed computer-implemented method includes calculating, from transaction data, a statistical change in data entries corresponding to a type of transaction and modeling a transaction rule for normalizing the statistical change by changing an acceptance standard of the type of transaction. The method further includes activating the transaction rule to update a live database system for entering real-time data entries. Various other methods, systems, and computer-readable media are also disclosed.

The disclosed computer-implemented method includes calculating, from transaction data, a statistical change in data entries corresponding to a type of transaction and modeling a transaction rule for normalizing the statistical change by changing an acceptance standard of the type of transaction. The method further includes activating the transaction rule to update a live database system for entering real-time data entries. Various other methods, systems, and computer-readable media are also disclosed.