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mssql help...

akiles99 asked
Last Modified: 2010-04-21
Hi guys ,

I will tell clearly what i want...

How to use aggregate function such as AVG,SUM on column which has a varchar(20) data type...
Actually  my need is i want to store this AVG(col1)& SUM(col1) into another table(column) using triggers..

But when using avg,sum in varchar it throws error....

Also i want to find the date difference...And average of datedifference...

So i need 4 queries...

Please dontsend any link...

Thanks & Regards,
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