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Conditional Update statement

Posted on 2012-08-28
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Last Modified: 2012-08-28
Hello, I need to do a conditional update on the following table:

CREATE TABLE [#TimesheetReport](
      [DateWorked] [varchar](50),
      [JobNumber] [varchar](50),
      [HoursWorked] [decimal](8, 2),
      [MileageTotal] [decimal](8, 2),
      [MileageDescription] [varchar](250),
      [MileagePaid] [decimal](8, 2),
      [HotelAmountPaid] [decimal](8, 2),
      [MealsAmountPaid] [decimal](8, 2),
      [OtherAmountPaid] [decimal](8, 2),
      [ClientId] int
)

if clientid = 1

update #TimesheetReport
Set MileagePaid =  (MileageTotal * 1.00)

else

update #TimesheetReport
Set MileagePaid =  (MileageTotal * .51)

How do you do this type of update???
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Question by:gogetsome
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4 Comments
 
LVL 66

Accepted Solution

by:
Jim Horn earned 2000 total points
ID: 38341878
Use a CASE block to test for the ClientID value.

update #TimesheetReport
Set MileagePaid =  CASE WHEN ClientID = 1 THEN  MileageTotal * 1.00 ELSE MileageTotal * .51 END
0
 
LVL 66

Expert Comment

by:Jim Horn
ID: 38341972
<potentially stupid comment>
In the question the table is created, and the next step is the update, but a newly-created table will have no rows in it, so there's nothing to update.

Not sure if the CREATE TABLE is there just to frame up the question, or if this is your total script.
0
 

Author Closing Comment

by:gogetsome
ID: 38342128
Exactly what I needed! Thanks,
That table was just an example. I fill it first then perform the update. ;-)
0
 
LVL 66

Expert Comment

by:Jim Horn
ID: 38342137
Thought so.  Thanks for the grade.  Good luck with your project.  -Jim
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