Oracle SQL: Insert duplicate key (disable/enable constraints)
<p>I am trying to INSERT some rows in a table, but since some of the rows are duplicate, I get a "unique constraint violated" error for one of the constraints.</p>

<p>Therefore, I decided to disable the constraints, insert the rows, delete the duplicate rows, and finally enable the constraints again. However, even after disabling the constraints, I get the same error message. It looks like the disabling hasn't worked. (I have checked the disable constraints script previously, and am pretty sure that it worked).</p>