Database dividing and table dividing method, device and equipment for database and readable storage medium

The invention discloses a database dividing and table dividing method, device and equipment and a readable storage medium, which are applied to the technical field of data processing, and the method comprises the following steps: obtaining to-be-divided database and table dividing data, to-be-divided database and table dividing data identification numbers, database grouping weight distribution rules and database table dividing routing rules; wherein the database grouping weight distribution rule is the number of databases in the database groups and the rule of the corresponding weight of each database group; the database sub-table routing rule is a rule for determining database sub-tables according to the number of tables in the database group and the inventory data identification number; and determining a database group number and a database table number by utilizing a database grouping weight distribution rule and a database table division routing rule according to the identification number of the data to b