Help Center > > User Guide> DDM DB Instance Management (Standard Edition)> Table Management> Altering a Table

Altering a Table

Updated at: Sep 29, 2020 GMT+08:00


You have logged in to a DDM DB instance on the DAS console.

DDM supports global tables, unsharded tables, and sharded tables. Only global tables and unsharded tables can be modified.

To modify sharded tables, execute SQL statements in the SQL window.


  1. On the top menu bar, choose Database Management.
  2. On the displayed Objects page, select Tables, locate the target table, and click Alter in the Operation column.
  3. On the displayed page, modify the basic table information and click Next.
  4. Make modifications on the Column page. After the operation is complete, modify the index information as required or click Alter.
  5. In the SQL Preview dialog box, click Execute.

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