Data processing method and device, equipment and storage medium

The invention provides a data processing method and device, equipment and a storage medium, and belongs to the technical field of big data and data storage. The method comprises the following steps: periodically synchronizing data in a main database to a standby database; in response to abnormality of a target database in the main database, acquiring to-be-synchronized data which are not synchronized to the standby database in the target database and data features of the to-be-synchronized data; reading a target user identifier corresponding to the to-be-synchronized data; determining a user priority corresponding to each target user identifier; according to the data features of the to-be-synchronized data, the user priority and the target user identifier, synchronizing the to-be-synchronized data to the standby database; and sending the newly received target data to the standby database. According to the method, the problem that the service time is influenced by the process of switching the standby database