01-JUN-2006 minus 24 month does not equal 01-APR-2006!

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AP

"Tufail" a écrit dans le message de news:
...
Hello,
I have date in A_col and want minus month of B_col and want get result in
C_col

A B C
01-JUN-2006 -24 01- APR-2006

Thanks in advance.