sql,sql-server,casting , converting varchar to Int SQL SERVER
converting varchar to Int SQL SERVER
I needed help with something I am not entirely sure how to resolve.
This is my code :
Nr_of_Times_Cust_No_Appears=CASE WHEN CAST(a.TV_Code AS Int)-CAST(BB_Code AS Int)=0 THEN COUNT(*) OVER (PARTITION BY BB_Code) ELSE 'Not same' END
Basically, the above code is meant to make sure that the substraction of TV Code and BB Code is Zero(0) if not then 'Not Same'. TV Code and BB Code are both varchar that are CAST to Int. The problem lies in the ELSE ' NOT SAME'.
This is the output I get from SQL SERVER Management Studio:
Conversion failed when converting the varchar value 'Not same' to data type int.
What should I do to make it work?
UPDATE: I finally found the workaround.
CAST(COUNT(*) OVER (PARTITION BY XX) AS Varchar)..... It worked!!!!
The error is simply occurring as your destination column can only have one data type.
The first part of your
CASE statement is effictively setting the column type to expect an integer, so when you hit the
ELSE section and try to insert
Not Same, you're getting the error.
FROM ( SELECT '1' AS Num
) AS val
SELECT CASE WHEN Num = '1' THEN CAST(Num AS INT)
ELSE 'Not 1'
END AS OutputVal
DROP TABLE #T
Conversion failed when converting the varchar value 'Not 1' to data type int.
So you need to insert an acceptable value, which could be
FROM ( SELECT '1' AS Num
) AS val
SELECT CASE WHEN Num = '1' THEN CAST(Num AS INT)
END AS OutputVal
DROP TABLE #T
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