Sql query aliasing problem

Hello all, I'm running a sql query to update one table from getting sum of quantity from another table. I have Product_master & Issue_detail table, I want to update total_opening field below is my query which gives error ( incorrect syntax near as in line 1 )

 use dpexcise
 update product_master set total_opening =0
 update product_master as P
  LEFT OUTER JOIN ( SELECT Product_code, sum(Quantity) as iss_qty from issue_detail where slip_date < '01/01/2012' group by product_code ) as A 
 ON a.Product_code = p.product_code set p.total_opening = IIF(iss_qty IS NULL,0,iss_qty)
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asked Jan 21, 2012 at 02:23 AM in Default

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1 answer: sort voted first

Your structure for the UPDATE query is a little off. You wan it to look like this:

 UPDATE  product_master
 SET     total_opening = A.iss_qty
 FROM    (SELECT Product_code,
                 SUM(Quantity) AS iss_qty
          FROM   issue_detail
          WHERE  slip_date < '01/01/2012'
          GROUP BY product_code
         ) AS A
 WHERE   A.product_code = product_code
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answered Jan 21, 2012 at 03:25 AM

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Grant Fritchey ♦♦
137k 20 47 81

Once again thanks Fritchey, I tried the above code with little change ( last line a.product_code = Product_Master.Product_Code ), it execute without en error but 0 rows affected. Please help what is going ?


Jan 21, 2012 at 03:42 AM Haren

Sorry its nice, no records satisfying this condition.

Jan 21, 2012 at 03:45 AM Haren

Great. Glad to hear it. The best way to test updates like this is to first test the select statement.

By the way, if you do find answers helpful, please use the voting buttons to give them a thumbs up. If an answer is the one that solved your problem, also click on the check box. That way other people will know what you thought the answer was.

Jan 21, 2012 at 04:17 AM Grant Fritchey ♦♦
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asked: Jan 21, 2012 at 02:23 AM

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Last Updated: Jan 22, 2012 at 02:03 AM

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