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Recently, I came across an issue related to incrementing sequence values inside a merge statement.
The MERGE INSERT clause, is accessing a sequence to populate one of the columns. I noted that, it does not matter how many rows are actually eligible for insertion, the sequence ends up incrementing for the total number of records in the source SELECT clause.
Why that may be happening?
I am working on Oracle 10gR2
Thanks,
I have found the answer. As per Oracle documentation, the sequence will be incremented for each merged record and it does not matter how many records are actually inserted.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/pseudocolumns002.htm#sthref809