Oracle Update Syntax with example

Normal Update

UPDATE
 TESTTABLE
SET
 TEST_COLUMN= 'Testvalue',TEST_COLUMN2= 123
WHERE
 EXISTS
 (SELECT MASTERTABLE.TESTTABLE_ID
 FROM MASTERTABLE
 WHERE ID_NUMBER=11);

Update Using Inline View

Using Inline View (If it is considered updateable by Oracle)

Note:

If you face a non key preserved row error add an index to resolve the same to make it update-able

UPDATE
 (SELECT
 TESTTABLE.TEST_COLUMN AS OLD,
 'Testvalue' AS NEW
 FROM
 TESTTABLE
 INNER JOIN
 MASTERTABLE
 ON TESTTABLE.TESTTABLE_ID = MASTERTABLE.TESTTABLE_ID
 WHERE ID_NUMBER=11) T
SET
T.OLD = T.NEW;

Conclusion

In this page (written and validated by A. Gawali) you learned about Oracle Update Syntax with example . What's Next? If you are interested in completing Oracle tutorial, your next topic will be learning about: Oracle Update with Joins.

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