Data snapshot method and device, equipment and storage medium

The invention discloses a data snapshot method and device, equipment and a storage medium, relates to the technical field of computers, and is used for improving the data snapshot efficiency. The method comprises the following steps: receiving a snapshot instruction for target data in a source database; the snapshot instruction comprises a data type of the target data; based on the data type of the target data and the corresponding relation, a first data table is determined from the source database, a second data table is determined from the target database, the target data is stored in the first data table, and the second data table is used for storing backup data of the target data; the corresponding relationship comprises a corresponding relationship between the plurality of data types and the plurality of data tables; the plurality of data types comprise the data type of the target data; the plurality of data tables comprise a first data table and a second data table; and storing backup data of the target