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 Cursor with ?dynamic? colum
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1 Posts

Posted - 04/12/2013 :  17:05:33  Show Profile  Reply with Quote
The subject title might be simple but im not sure the name for this since what im trying to reach is a way to be able to see if a column has a certain value:

FETCH NEXT FROM Tabs INTO @table_name, @column_name
    Set @existing=0
    SELECT @existing = count([@column_name])
    FROM @table_name
    WHERE [@column_name]=@new

so far my issue is the @column_name, which says its a invalid colum name (where i check if the @new i give exists in the records) for this purpose and the @table_name gives me the same issue, since im trying to have the cursor check for a certain table that has a FK colum name i give s PK, having this query working to open the cursor

Yak Posting Veteran

54 Posts

Posted - 04/12/2013 :  21:14:54  Show Profile  Reply with Quote
Some thing like

Create Table #Info (ColName varchar(max),cnt int)
declare @script varchar(max)

FETCH NEXT FROM Tabs INTO @table_name, @column_name
Set @existing=0
select @script = 'Insert Into #Info SELECT ''' + @column_name + ''',count([' + @column_name + ']) FROM ' + @table_name + ' WHERE [' + @column_name + ']= ' + @new

exec (@script)

Edited by - UnemployedInOz on 04/12/2013 21:15:19
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Very Important crosS Applying yaK Herder

52326 Posts

Posted - 04/13/2013 :  01:46:44  Show Profile  Reply with Quote
use sp_executesql which can return values

SQL Server MVP
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