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Delete one table record if the no more record are associated from another table

Posted By:      Posted Date: September 16, 2010    Points: 0   Category :ASP.Net
Hello All,   In my scenario I have two tables say Table A and Table B. Table A has 3 records   Id Name Value 1 ABC 123 2 XYZ 456 3 PQR 789   Now in another table I have 4 records   Id FName Lname TableAID 101 ABC XYZ 1 102 AAA BBB 1 103 XXX YYY 1 104 PPP QQQ 2   Now I display table B records in gridview when I select 3 records say id 101,102,103 and click on delete button. Table B selected records should be deleted and its working fine.   The problem is that in Table A record 1 ABC 123 is only associated with that many records so when I delete that record from Table B at that time the associated record in Table A should also be deleted as no more association with that record in Table B.   So please give me query or appropriate solution for that.  

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