Abstract: A bionic bird repeller comprises a pole, a connecting rope, a connecting element and a raptor kite, wherein the raptor kite comprises wing parts, a tail part and a chest part, at least one pair of wing parts are provided with concave parts, a first air duct is formed inside the concave part, and a diversion structure is arranged on the chest part, and a second air duct is formed between the diversion structure and the tail part; the connecting element is used for connecting the raptor kite and the connecting rope, and the connecting element comprises a movable mechanism for preventing twisting.

Abstract: A multimedia processing method includes: obtaining, in response to an editing operation for a multimedia file, a material editing mode and an interaction template corresponding to a type of a material in the multimedia file; identifying the material in the multimedia file according to the material editing mode, and applying the interaction template to the identified material; and displaying the multimedia file after the interaction template is applied.

Abstract: A database system and a column changing method for a database are provided, where a column attribute of a first column is changed to a change target value. Second columns are added into a physical data table and a physical GSI table, and into respective structure definitions of a logical data table and a logical GSI table, and are hidden from a user. The second columns in the logical data and GSI tables are respectively associated with the second columns in the physical data and GSI tables, and a value of the attribute of the second column in the logical table is the change target value. Configuration is performed in the respective structure definitions, to replace a first column with the second column in user access logic of the database. The first columns are deleted from the physical data and GSI tables, and from the respective structure definitions.

Abstract: A bionic bird repeller comprises a pole, a connecting rope, a connecting element and a raptor kite, wherein the raptor kite comprises wing parts, a tail part and a chest part, at least one pair of wing parts are provided with concave parts, a first air duct is formed inside the concave part, and a diversion structure is arranged on the chest part, and a second air duct is formed between the diversion structure and the tail part; the connecting element is used for connecting the raptor kite and the connecting rope, and the connecting element comprises a movable mechanism for preventing twisting.

Abstract: Embodiments of the present disclosure provide a data processing method, an electronic device, and a storage medium. In the embodiments of the present disclosure, in a process of obtaining random sampling data from the target database table, through an index tree scanning manner in combine with a mechanism for random sampling a data page of the database table, full-table scanning is not performed on the target database table, thereby effectively reducing the number of times that I/O access is performed on the disk, saving disk I/O resources, and enhancing the query performance of the database system, especially in the case that the distributed database system has mass data.

Abstract: A data partition storage system is provided. The system includes: a data analysis device, configured to determine, according to a data feature of target data comprised in a database, a heat level corresponding to the target data; and a database kernel, deployed on a target device different from the data analysis device to form the database, and configured to: acquire the heat level corresponding to the target data transmitted by the data analysis device; and store the target data in a storage area corresponding to the heat level.

Abstract: Embodiments of the present disclosure provide a data processing method, an electronic device, and a storage medium. In the embodiments of the present disclosure, in a process of obtaining random sampling data from the target database table, through an index tree scanning manner in combine with a mechanism for random sampling a data page of the database table, full-table scanning is not performed on the target database table, thereby effectively reducing the number of times that I/O access is performed on the disk, saving disk I/O resources, and enhancing the query performance of the database system, especially in the case that the distributed database system has mass data.

Abstract: A data processing method including: acquiring information of multiple first data blocks of a first level to be merged and information of multiple second data blocks of a second level to be merged, wherein each of the first data blocks of the first level has the same first size, and each of the second data blocks of the second level has the same second size; performing, according to the information of the multiple first data blocks and the information of the multiple second data blocks, data comparison on each of the first data blocks and each of the second data blocks; and performing, according to a comparison result, data compaction on the first level and the second level. The embodiments of the present disclosure effectively reduce system overheads caused by I/O data read and write and data comparison, thereby improving the system throughput.

Abstract: A data partition storage system is provided. The system includes: a data analysis device, configured to determine, according to a data feature of target data comprised in a database, a heat level corresponding to the target data; and a database kernel, deployed on a target device different from the data analysis device to form the database, and configured to: acquire the heat level corresponding to the target data transmitted by the data analysis device; and store the target data in a storage area corresponding to the heat level.

Abstract: A multimedia processing method includes: obtaining, in response to an editing operation for a multimedia file, a material editing mode and an interaction template corresponding to a type of a material in the multimedia file; identifying the material in the multimedia file according to the material editing mode, and applying the interaction template to the identified material; and displaying the multimedia file after the interaction template is applied.

Abstract: A data processing method including: acquiring information of multiple first data blocks of a first level to be merged and information of multiple second data blocks of a second level to be merged, wherein each of the first data blocks of the first level has the same first size, and each of the second data blocks of the second level has the same second size; performing, according to the information of the multiple first data blocks and the information of the multiple second data blocks, data comparison on each of the first data blocks and each of the second data blocks; and performing, according to a comparison result, data compaction on the first level and the second level. The embodiments of the present disclosure effectively reduce system overheads caused by I/O data read and write and data comparison, thereby improving the system throughput.

Abstract: The present application describes techniques for managing primary and secondary databases. One example method includes determining whether a lock held by a primary database expires, wherein the primary database and the secondary databases share the lock; in response to determining that the lock held by the primary database has expired, determining whether a lock renewal request of the primary database has been received; and in response to determining that the lock renewal request of the primary database has not been received, selecting a particular secondary database from the secondary databases as a new primary database, and controlling the primary database to be switched to the particular secondary database.

Abstract: The present application describes techniques for managing primary and secondary databases. One example method includes determining whether a lock held by a primary database expires, wherein the primary database and the secondary databases share the lock; in response to determining that the lock held by the primary database has expired, determining whether a lock renewal request of the primary database has been received; and in response to determining that the lock renewal request of the primary database has not been received, selecting a particular secondary database from the secondary databases as a new primary database, and controlling the primary database to be switched to the particular secondary database.