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    <p>'' is not weird; it is a notation that enables apostrophes inside varchars. </p> <p>When concatenating make sure that you are not trying to concatenate anything other than (n)varchars and (n)chars because Sql Server will attempt to convert them to other datatypes; in your case, in smalldatetime. You might avoid this trouble by explicitly converting your parameter dates to nvarchars before/during concatenation, but better solution is to use <a href="http://msdn.microsoft.com/en-us/library/ms188001.aspx" rel="nofollow">sp_executesql</a> and parameters.</p> <p>If you leave parameters inside query:</p> <pre><code>set @query = 'SELECT statdate, ' + @cols + ' from ( select statdate, statcolumnname, statcolumnvalue from [85137_PHY_Long_PG] ) x pivot ( min(statcolumnvalue) for statcolumnname in (' + @cols + ') ) p WHERE statdate BETWEEN @from AND @to ORDER BY statdate' </code></pre> <p>You can execute it with parameters:</p> <pre><code>exec sp_executesql @query, N'@from datetime, @to datetime', @from=@from_variable, @to=@to_variable </code></pre> <p>Where @from_variable and @to_variable are datetime variables defined earlier in batch.</p> <p><strong>UPDATE:</strong></p> <p>If your ultimate goal is to wrap this code in stored procedure, here is a template:</p> <pre><code>create proc MyProc (@dateFrom smalldatetime, @dateTo smalldatetime) as DECLARE @cols AS NVARCHAR(MAX), @query AS NVARCHAR(MAX); select @cols = STUFF((SELECT distinct ',' + QUOTENAME(c.statcolumnname) FROM [85137_PHY_Long_PG] c FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'),1,1,'') set @query = 'SELECT statdate, ' + @cols + ' from ( select statdate, statcolumnname, statcolumnvalue from [85137_PHY_Long_PG] ) x pivot ( min(statcolumnvalue) for statcolumnname in (' + @cols + ') ) p WHERE statdate BETWEEN @from AND @to ORDER BY statdate' exec sp_executesql @query, N'@from smalldatetime, @to smalldatetime', @from=@dateFrom, @to=@dateTo </code></pre>
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    1. POSql Server Query Date Issue
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    1. COOh ok, cool. Got it working, thanks man.Can get confusing...next challenge is to convert it to a stored procedure. Anyone bored...
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    2. COIs it possible to pass the actual dates e.g. 2012-04-01 12;:15:00 as parameters. Not having to set them as illustrated.
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    3. COYes, you can pass constants as parameters: `@from='2012-12-01 13:33:12'`
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