**Table 1** Checking whether the source database user has sufficient permissions
Check Item	Whether the source database user has sufficient permissions
Description	The source database user must have the required permissions. In a full migration, the source database user must have the SELECT, SHOW VIEW, and EVENT permissions. In an incremental migration, the source database user must have the following permissions: SELECT, SHOW VIEW, EVENT, LOCK TABLES, REPLICATION SLAVE, and REPLICATION CLIENT. If the permissions are insufficient, the migration will fail.
Failure Cause and Handling Suggestion	Failure cause: In a full migration, the source database user must have the SELECT, SHOW VIEW, and EVENT permissions. Handling suggestions: Grant the source database user the corresponding permissions.
	Failure cause: In an incremental migration, the source database user must have the following permissions: SELECT, SHOW VIEW, EVENT, LOCK TABLES, REPLICATION SLAVE, REPLICATION CLIENT, In the DR scenario, the following permissions are required: CREATE, ALTER, DROP, DELETE, INSERT, UPDATE, and INDEX. Handling suggestions: Grant the source database user the corresponding permissions.
	Failure cause: Insufficient user permissions Handling suggestion: Check whether the database user permissions meet the migration requirements. NOTE: For details about the required MySQL permissions and authorized operations, see Which MySQL Permissions Are Required for DRS?
	Failure cause: An internal error occurs. Handling suggestion: Contact technical support.

**Table 2** Checking whether the source database user has sufficient permissions
Check Item	Whether the source database user has sufficient permissions
Description	Check whether the source database user permissions meet the migration requirements. If the permissions are insufficient, the migration will fail.
Failure Cause and Handling Suggestion	Failure cause: This item cannot be checked because the source database fails to be connected. Handling suggestion: Check whether the source database is connected.
	Failure cause: The source database user does not have the required permissions. Handling suggestion: Check whether the source database user permissions meet the migration requirements.
	Failure cause: An internal error occurs. Handling suggestion: Contact technical support.

Checking Whether the Source Database User Has Sufficient Permissions