Updated on 2025-01-07 GMT+08:00

Altering a Table

After a table is created, you can alter information of the table, including basic information, columns, generated columns, indexes, and foreign keys.

Usage Notes

Improper alterations on a table will cause instance or service exceptions.

Procedure

  1. Log in to the DAS console.
  2. Click in the upper left corner and select a region and project.
  3. Click in the upper left corner, and under Databases, click Data Admin Service.
  4. In the navigation pane on the left, choose Development Tool.
  5. Locate the DB instance that you want to log in to and click Log In in the Operation column.
  6. On the top menu bar, choose Database Management.
  7. In the upper area of the page, click Change on the right of the current database to switch to the database where you want to alter a table.
  8. On the displayed Objects tab, choose Tables on the left.
  9. In the right pane, locate the table that you want to alter and click Alter in the Operation column.
  10. Modify the table information as required. After the modification is complete, click Alter.
  11. In the SQL Preview dialog box, click Execute.