39results about How to "Delete accurately" patented technology

A packet processing system including a forwarding apparatus that sends and receives a packet by using a network interface and a control apparatus that includes an application receiving the packet is provided. The control apparatus includes: a symbol part corresponding to the forwarding apparatus; and a transfer control part for sending a request message, to the forwarding apparatus, requesting the forwarding apparatus to set a packet transfer rule for transferring a receiving packet to the application; and the forwarding apparatus includes: a transfer control part for setting the packet transfer rule as requested by the request message; wherein the packet transfer rule includes an interface identifier corresponding to the communication port; and when the control apparatus detects that the interface identifier is changed, the control apparatus sends a correction message, to the forwarding apparatus, requesting the forwarding apparatus to correct the interface identifier in the packet transfer rule.

The invention provides a method and a device for the video management of a video monitoring system. The method comprises the following steps: firstly, enabling each video file to store video streams with preset time length, and the file name of each video file containing the generation time of the stored video streams; secondly, receiving the delete requests of a client end so as to obtain the delete time period corresponding to the video stream to be deleted; thirdly, searching and finding according to the file names of the video files, and finding out the video file containing the video streams at the delete time period as a target file; and finally, judging whether the video streams stored in the target file include non-deleted video streams except the deleted time period or not, if so, copying and storing the non-deleted video streams to generate a new video file and then deleting the target file; otherwise, directly deleting the target file. The invention can precisely delete video files according to the instructions of clients.

The invention discloses a session information processing method, device and system, wherein the method comprises the following steps of: setting a timer having pre-set time for current session information; after the pre-set time is up, sending a request for auditing the current session information; receiving a response for auditing the current session information; on the basis of the response, obtaining an effective state or an ineffective state of the current session information, and refreshing the timer when the current session information is in the effective state, so that the request for auditing the current session information is re-sent when the pre-set time is up again; and, when the current session information is in the ineffective state, deleting the current session information. Thereby, by means of the embodiment, the ineffective session information can be deleted accurately in time; therefore, the system overhead is reduced; the operation speed is increased; the information processing reliability is improved; and the application range is enlarged.

The embodiment of the present application discloses an information storage method and device. A specific implementation of the method includes: receiving an information storage request, wherein the information storage request includes a key-value pair, an expiration time, and object information of a specified object; storing the key-value pair in a cache, and The expiration time sets the expiration time value of the key-value pair in the cache area; the key of the key-value pair and the expiration time are correspondingly included in the information set associated with the object information, and the information set stored in the cache. When the object information changes, the cached information can be deleted accurately, thereby avoiding the wrong deletion of information and ensuring the consistency of the data in the database and the cache area.

The embodiments of the present application disclose a method and device for restoring deleted data of a database. A specific implementation of the method includes: determining a data segment set from a preset database file; for each data segment in the data segment set, determining a data area set from the data segment; for each data segment in the data area set area, determine the data block set from the data area; determine the valid data block from the data block set; determine the row type flag corresponding to each row of data in the valid data block, and mark the row type as the row data corresponding to the delete flag recover. This embodiment effectively utilizes the structure of the data stored in the database, accurately locates the storage location of the deleted data and restores it, and realizes the accurate and comprehensive recovery of the deleted data in the database.

The invention relates to a communication field and provides an automatic short message deleting method comprising the following steps of: presetting a score weight table of short messages according to the structures of the short messages and automatically deleting a score threshold of the short messages, wherein the score weight table comprises each part of the short messages and the corresponding score of each part; allocating the score to each part of the short messages according to the score weight table of the short messages; calculating the score of each part of the short messages to obtain the total score of the short messages; and deleting the corresponding short messages when the total score of the short messages is less than or equal to the preset score threshold. The invention also provides an automatic short message deleting system. The invention can be used for accurately deleting the short messages to be deleted to improve the safety level of short message deletion and improve user experience.