Abstract: In an embodiment, a first region is set according to a preset condition, the first region is a blank region reserved for storing new data of a key-value type. An embodiment method includes: when the new data of the key-value type is to be stored in the first region, receiving a region split command; updating, according to the region split command, a state identifier of the first region and in a state table to an identifier indicating that a read/write service is no longer provided, splitting the first region into at least two second regions, updating state identifiers of the second regions in the state table to identifiers indicating that a read/write service can be provided; and recording, in a metadata table, storage location information of the second regions.

Abstract: A data storage method includes obtaining at least one data record, each data record includes one carrier identifier and at least one label value, the at least one data record is stored in a data table, and the data table is used to record a correspondence between a carrier identifier and a label value; and creating a bitmap index corresponding to the at least one data record, where the bitmap index includes at least one bitmap; each bitmap corresponds to one label value; each bitmap includes at least one bitmap position, and each bitmap position is used to record whether a carrier corresponding to one carrier identifier has a label value corresponding to a current bitmap.

Abstract: The present application provides a data processing method and apparatus. The method includes: when a region in a table of a database system meets a predefined condition, saving data in the region as a data storage file to a storage device, where the data storage file includes time metadata, and the time metadata comprises a region write time of the data in the region; when a condition for triggering a combination operation is met, obtaining a time for performing a backup operation most recently; selecting at least two first data storage files, where a region write time recorded in time metadata included in the at least two first data storage files is before the obtained time; and combining the selected at least two first data storage files, therefore resolving a problem in the prior art that a time consumed for performing a backup operation is long.

Abstract: A data backup method and a data processing system are provided. The method includes: when a quantity of storage files stored in a storage medium meets a preset threshold, acquiring storage files which are stored in the storage medium after a time point, where the time point is a time of previously backing up storage files in the storage medium; combining the storage files after the time point to obtain at least one new storage file; and backing up the at least one new storage file. Therefore, incremental backup is performed on the storage files after the time point.

Abstract: A data storage method includes obtaining at least one data record, each data record includes one carrier identifier and at least one label value, the at least one data record is stored in a data table, and the data table is used to record a correspondence between a carrier identifier and a label value; and creating a bitmap index corresponding to the at least one data record, where the bitmap index includes at least one bitmap; each bitmap corresponds to one label value; each bitmap includes at least one bitmap position, and each bitmap position is used to record whether a carrier corresponding to one carrier identifier has a label value corresponding to a current bitmap.

Abstract: In an embodiment, a first region is set according to a preset condition, the first region is a blank region reserved for storing new data of a key-value type. An embodiment method includes: when the new data of the key-value type is to be stored in the first region, receiving a region split command; updating, according to the region split command, a state identifier of the first region and in a state table to an identifier indicating that a read/write service is no longer provided, splitting the first region into at least two second regions, updating state identifiers of the second regions in the state table to identifiers indicating that a read/write service can be provided; and recording, in a metadata table, storage location information of the second regions.

Abstract: A data backup method and a data processing system are provided. The method includes: when a quantity of storage files stored in a storage medium meets a preset threshold, acquiring storage files which are stored in the storage medium after a time point, where the time point is a time of previously backing up storage files in the storage medium; combining the storage files after the time point to obtain at least one new storage file; and backing up the at least one new storage file. Therefore, incremental backup is performed on the storage files after the time point.

Abstract: The present application provides a data processing method and apparatus. The method includes: when a region in a table of a database system meets a predefined condition, saving data in the region as a data storage file to a storage device, where the data storage file includes time metadata, and the time metadata comprises a region write time of the data in the region; when a condition for triggering a combination operation is met, obtaining a time for performing a backup operation most recently; selecting at least two first data storage files, where a region write time recorded in time metadata included in the at least two first data storage files is before the obtained time; and combining the selected at least two first data storage files, therefore resolving a problem in the prior art that a time consumed for performing a backup operation is long.