# 477 SQL SELECT Queries on Empty Data Files Causes Application to Hang

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I'm porting an application that use Paradox Tables to DBISAM. I Have a table with 2 field

Group_Serial
Group : Integer
SerialNumber:String 40

So, I'm doing This Query
select * from Group_Serial where Group=1 and SerialNumber='1111'

When I execute the Query (Even from the Database System Utility) the CPU usage goes to 100% and never ends.