All Products
Document Center

Data Transmission Service:The source database permission check fails during the precheck phase during DTS data migration

Last Updated:Jul 12, 2022

Problem description

When Alibaba Cloud Data Transmission Service Service DTS checks whether the account permissions of the source database meet the migration requirements during data migration, the "Source Database Permission Check" check item fails to be prechecked.


The database account of the source database does not have sufficient permissions to perform data migration tasks.


To ensure the smooth execution of the data migration task, DTS checks the permissions of the source database account configured in the data migration task during the precheck. This ensures that the account has sufficient permissions to perform the data migration task. Permissions are required for different types of databases and data migration types. For more information, see Overview of migration solutions. If the Migration Failed message appears during schema migration or full data migration, you can use the online fix feature of DTS to manually fix the task. For more information, see Repair failed migration tasks.


If the source database account lacks the sysadmin permission during data migration, the source database account fails the precheck. For more information, see DTS precheck: The source database account lacks the sysadmin permission.

Ideal For

  • Data Transmission Service (DTS)