You can use DDL statements to create, update, and delete database objects. This topic describes the background of and database objects supported by DDL statements.
Background
Before and after a DDL statement is executed, OceanBase Database will send an implicit COMMIT statement. Therefore, a DDL statement cannot be rolled back after being executed. We recommend that you back up data before you perform DDL operations.
Note
- In the CLI environment of OceanBase Client (OBClient), you can enter a DDL statement after the SQL prompt (
>).- You can also enter a DDL statement in the ODC SQL Editor window.
Database objects supported by DDL statements
The following database objects are supported for DDL statements in OceanBase Database:
Tables, including constraints and indexes
Views
Sequences
Synonyms
Custom functions
Stored procedures
Triggers
Packages and package bodies
