Technology Tales

Adventures & experiences in contemporary technology

Updating Oracle data tables that have associated sequence objects

3rd May 2007

Here’s something that I want to put somewhere for future reference before I forget it: keep sequences associated with Oracle data tables up to date while adding records. Given that it took me a while to find it, it might come in useful for someone else too.

The first thing is to update the sequence itself:

SELECT TABLE_SEQ.NEXTVAL FROM DUAL;

Dual is a handy one record table that you can use to update sequences. Use the actual associated table itself if you want to see that sequence number rocket…

The next thing is to use the new value to assign a table ID as part of an INSERT statement:

INSERT INTO “TABLE” VALUES (TABLE_SEQ.CURRVAL, 1, ‘Test value’);

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