<![CDATA[How to avoid ORA-04091 error when unicity check has to be done on a trigger?]]>

0 <![CDATA[How to avoid ORA-04091 error when unicity check has to be done on a trigger?]]> https://www.it-quants.com/Blogs/tabid/83/EntryId/20/How-to-avoid-ORA-04091-error-when-unicity-check-has-to-be-done-on-a-trigger.aspx In some cases, it is not possible to add very easily unicity check using a key on an index. For example, when conditions have to be used and that the un ...]]> en-US