It was a while ago when we noticed that our enabled and validated constraints were not respected by our 220.127.116.11 database. The reason for this appeared to be a merge clause updating the rows and ignoring the constraints. A bug 9285259 was created.
Now the bug will be fixed in version 12.1 and hopefully 18.104.22.168 also. There is a patch available on top of 22.214.171.124 version. The patch installed online. Now we are receiving ORA-02290: check constraint violated as supposed. Also workaround was introduced. Our merge clause had only update part. By adding insert or delete part to the merge the constraint is noticed without the patch.
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- I am Timo Raitalaakso. I have been working since 2001 at Solita Oy as a Senior Database Specialist. I have received Oracle ACE nomination. My main focus is on projects involving Oracle database. In this Rafu on db blog I write some interesting issues that evolves from my interaction with databases. Mainly Oracle.