Abstract: Disclosed is a method for managing a database, which is performed by a first database server including at least one processor constituting a cluster jointly with at least one second database server. The method for managing a database may include loading, on a buffer cache, a first data block based on a first transaction for modifying the first data block located in a sharing storage shared jointly with the at least one second database server. The method may include modifying the first data block loaded on the buffer cache. The method may include determining flushing a first log generated by the modification of the first data block to the sharing storage.

Abstract: The embodiment of the disclosure provides an information processing method, a device, an apparatus, an electronic apparatus, a non-transitory computer-readable storage medium, a computer program product and a computer program, wherein an information posting request is acquired and used for requesting to post first multimedia information, a first icon corresponding to the first multimedia information is displayed in an information posting area of a multimedia page in response to the posting request, and at least one function control corresponding to the first multimedia information is displayed in the posting area within a preset time length after the first multimedia information is successfully posted, wherein the at least one function control is used for performing operation on the first multimedia information.

Abstract: An apparatus for supplying chemical liquid may include a chemical liquid supply member for supplying a chemical liquid onto a substrate, a chemical liquid storing member for storing the chemical liquid, a chemical liquid receiving assembly for receiving the chemical liquid provided from the chemical liquid storing member and for providing the chemical liquid into the chemical liquid supply member, a first chemical liquid supply line for supplying the chemical liquid from the chemical liquid storing member to the chemical liquid receiving assembly, and a second chemical liquid supply line for supplying the chemical liquid from the chemical liquid receiving assembly to the chemical liquid supply member.

Abstract: A speaking user selecting method and apparatus, an electronic device, a storage medium, a computer program product, and a computer program. The method comprises: receiving a first request sent by a first terminal device, the first request being used for determining a speaking user in a user group, wherein the user group comprises at least two users to be selected, and each user to be selected corresponds to one second terminal device; determining a random selection model corresponding to the first request, the random selection model being used for representing a policy for randomly determining a speaking user from the user group; and determining a speaking user from the at least two users to be selected according to the random selection model, and sending identification information of the speaking user to the first terminal device and the second terminal device.

Abstract: Provided are a backlight module, a preparation method thereof, and a display device. The backlight module includes a substrate, multiple light-emitting elements, a reflection structure and a rubber frame structure, and the multiple light-emitting elements, the reflection structure and the rubber frame structure are located on one side of the substrate. The multiple light-emitting elements and the reflection structure are located within a limited area of the rubber frame structure, and the reflection structure is located between every two adjacent light-emitting elements; and the reflection structure includes a first reflection surface adjacent to a light-emitting element, and the rubber frame structure includes a second reflection surface adjacent to the light-emitting element.

Abstract: Disclosed is a method including setting an exclusive modification authority of a first instance for a first data block (FDB) corresponding to a first transaction of the first instance. The FDB is related to a first index node group which participates in an index structure change which occurs by the first transaction. The method includes verifying the exclusive modification authority of a second data block (SDB) corresponding to a second transaction of a second instance. The SDB is related to a second index node group which participates in the index structure change which occurs by the second transaction. When the exclusive modification authority of the first instance for at least a part of the SDB is identified, the method includes making an access of the second transaction of modifying a data block in which the exclusive modification authority of the first instance is set in the SDB be waited.

Abstract: Disclosed is a method for implementing re-instantiation for a database, which is performed by a computing device, which may include: acquiring at least one redo log; acquiring an address of a data block based on the at least one redo log; acquiring information on changed matters included in a control file based on the at least one redo log; and modifying a first database based on the address of the data block and the information on the changed matters.

Abstract: Disclosed is a method for managing a database, which is performed by a first database server including at least one processor constituting a cluster jointly with at least one second database server. The method for managing a database may include loading, on a buffer cache, a first data block based on a first transaction for modifying the first data block located in a sharing storage shared jointly with the at least one second database server. The method may include modifying the first data block loaded on the buffer cache. The method may include determining flushing a first log generated by the modification of the first data block to the sharing storage.

Abstract: Disclosed is a non-transitory computer readable medium storing computer program which is executable by one or more processors. The computer program allows the one or more processors to execute the following operations for performing a pivot query when the computer program is executed by one or more processors and the operations may include: identifying one or more classification factors from a query when receiving the query from a client; generating a search table for filtering records corresponding to at least one row of a table corresponding to the query based on the one or more classification factors; and generating a result table by performing an aggregation of a plurality of records included in the table based on the search table.

Abstract: Disclosed is a non-transitory computer readable medium storing computer program which is executable by one or more processors. The computer program allows the one or more processors to execute the following operations for performing a pivot query when the computer program is executed by one or more processors and the operations may include: identifying one or more classification factors from a query when receiving the query from a client; generating a search table for filtering records corresponding to at least one row of a table corresponding to the query based on the one or more classification factors; and generating a result table by performing an aggregation of a plurality of records included in the table based on the search table.

Abstract: Provided is a method for managing a shared memory in a database server. The database server includes a shared memory manager which divides a shared memory into a plurality of memory chunks to manage the memory chunks and allocates at least one memory chunk to a cache memory manager based on a request of the cache memory manager; a cache memory manager which requests at least one of the plurality of memory chunks to the shared memory manager, wherein the database server includes a plurality of cache memory managers and the database server uses the memory chunk which is allocated to the cache memory manager as a cache memory having a predetermined purpose, and the predetermined purposes of the plurality of cache memory managers are different from each other; and a main processor which performs a database operation using the cache memory.