Other User Main Dbspaces

Create user main dbspaces so that users do not place user tables or indexes in IQ_SYSTEM_MAIN.

The best practice is to avoid placing user tables or indexes in IQ_SYSTEM_MAIN. The administrator may allow user tables to be created in IQ_SYSTEM_MAIN, especially if these tables are small, very important tables. However, the recommended method is that immediately after creating the database, the administrator creates a second main dbspace (a user main dbspace), revokes CREATE privilege in dbspace IQ_SYSTEM_MAIN from PUBLIC, grants CREATE privilege for the new main dbspace to selected users or PUBLIC, and sets PUBLIC.DEFAULT_DBSPACE to the new user main dbspace.

For example:

CREATE DBSPACE user_main USING FILE user_main
'user_main1' SIZE 10000;
GRANT CREATE ON user_main TO PUBLIC;
REVOKE CREATE ON IQ_SYSTEM_MAIN FROM PUBLIC;
SET OPTION PUBLIC.DEFAULT_DBSPACE = 'user_main';