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SQL ROUND SYNTAX FOR COMPUTATION OF AN ALIAS

Posted on 2013-12-09
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Last Modified: 2013-12-10
Ok, I do not know why I am having syntax issues with the ROUND statement!  I have the following:

,[RENTAL_COST_FW]
      ,[DAYS_BILLED_FW]
      ,[MILEAGE_RATE_FW]
      ,(([COST_LABOUR_FW] + [COST_PARTS_FW] + [CVR_FEE_FW] + [TOTAL_TAX_FW])) as         FW_COST_TOTAL

I want to round the alias "FW_TOTAL_COST" to 2 decimal places... I keep getting a syntax error when I put the ROUND clause in.
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Question by:66chawger
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Expert Comment

by:Jim Horn
ID: 39707031
>I keep getting a syntax error when I put the ROUND clause in.
Show us the T-SQL that does this, and what is the data type (float, numeric, etc.) of this column?

>I want to round the alias "FW_TOTAL_COST" to 2 decimal places...
I don't see the column FW_TOTAL_COST anywhere in the above T-SQL block, (FW_COST_TOTAL, same thing?), so show us that too.
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Author Comment

by:66chawger
ID: 39707096
Jim,

Yes, you are correct, my fault... it is FW_COST_TOTAL
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Expert Comment

by:Jim Horn
ID: 39707103
Give this code fragment a whirl..

,ROUND([COST_LABOUR_FW] + [COST_PARTS_FW] + [CVR_FEE_FW] + [TOTAL_TAX_FW],2) as         FW_COST_TOTAL

Open in new window

... and if it fails, copy-paste in this question the entire query, and the error message
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Accepted Solution

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Scott Pletcher earned 500 total points
ID: 39707291
,CAST([COST_LABOUR_FW] + [COST_PARTS_FW] + [CVR_FEE_FW] + [TOTAL_TAX_FW] AS decimal(9, 2)) as
FW_COST_TOTAL

/*
CAST will automatically ROUND, as it changes the data type of the final result to have only 2 decimal places.  If you want to do computations with that value, it might be important for it to have only 2 decimal places if that is what the computation expects it to have.
*/
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Author Closing Comment

by:66chawger
ID: 39709480
Scott, this is it.  Cast didn't even cross my mind.. must have been in la la land at the time!  Each variable (column) used in the computation is defined with 4 decimal places.  What you gave me serves the purpose as I am working with 3rd party software, so this will keep me from having to physically change the attributes in the table.

Jim, thanks for your response, that syntax worked, but you had the round for one of the variables, not the alias.
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Expert Comment

by:Jim Horn
ID: 39709598
>but you had the round for one of the variables, not the alias.
Curiosity overwhelms me ... what exactly do you mean by that?
The below code looks like four columns, not variables, and aliases are for naming only and do not participate in expressions, unless we're talking a subquery/cte..
,ROUND([COST_LABOUR_FW] + [COST_PARTS_FW] + [CVR_FEE_FW] + [TOTAL_TAX_FW],2) as         FW_COST_TOTAL

Open in new window

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