IF Function,GROUP BY,aggregate Function Problems
Yep, I have all those problems in the title. So I'll explain each one at a time - I did have another thread relating to this very same query but I thought it was time to update where I am with the query because at the moment I feel like I am getting nowhere!
The query I have basically searches through an items_ordered table through each product and checks to see whether the item is VATable or not. This is not where I have the problem though. Where I am really having the first problem is when I am trying to use the IF function to check if the TOTAL of an order is over £300. IF it is then I multiply it my 0.95 (i.e. 5% off). With the query below I get no errors but neither do I get the desired result. It's as though it couldn't even see it. =....
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Aggregate Function
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Need For Aggregate Function First?
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Aggregate Function (AVG) Query Q.
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How To Code Sql Update Using Aggregate Function
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Count Function & Group By
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Invalid Use Of Group Function & SUM() And MAX()
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GROUP BY Function And Getting Rid Of NULL Results
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Error:invalid Use Of Group Function
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Invalid Use Of Group Function - Max(`mainid`)+1
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Invalid Use Of Group Function (was "Baffled By Query Error")
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SQL IN() Function
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Last Function
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A Date Function
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Function Error
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Date Function?
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Dateadd Function
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Rank Function ?
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Calling Db Function
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