CheckDatabaseDefinition This function is used to check if the database definition exists.

CheckIndexDefinition Used to check if a certain index is defined in the table This function executes the given SQL query, returns true if the result set is not empty, otherwise returns false.

CheckTableColumn Check if the columns in the table exist, and if so, return the detailed information of the column.

CheckTableComment is used to check if the specified table definition exists in the specified database.

CheckTableDataExist Used to checks whether a table contains specific data This function executes the given SQL query, returns true if the result set is not empty, otherwise returns false.

CheckTableDefinition is used to check if the specified table definition exists in the specified database.

CheckViewDefinition Check if the view exists, if so, return true and return the view definition.

FetchAllTenants get all tenantIDs in mo system, including system tenants.

alter table structure.

alter view definition.

ColumnInfo Describe the detailed information of the table column.

UpgradeEntry is used to designate a specific upgrade entity.