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WHY In Clause Fater than EXISTS clause?

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jdu2006

Programmer
May 13, 2008
6
US
I used to use the exists clause in my embedded sql statement and it was always working fine. But my process is suddenly chocked and I found out the problem was exists clause, if I changed the exists clause to in clause, the process would be resumed. Any idea? Please help and thanks in advance
 
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