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I suggest also trimming the value and testing for empty string instead:<br />
<br />
select NULLIF( RTRIM(Value), '' ) as Value<br />
from MyTable
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<div class="content wysiwyg-content">
I have a result set in my query that contains empty strings like ' '. &nbsp;I would like to make those NULL in the select clause in my sql statement like this...<br />
<br />
CASE WHEN Value = ' ' THEN NULL END AS Value<br />
<br />
But when I do this I get this error...<br />
<br />
None of the result expressions in a CASE specification can be NULL.<br />
<br />
Is there a better way to accomplish what I'm after?<br />
<br />
Thanks
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I have a result set in my query that contains empty strings like ' '.  I would like to make those NULL in the select clause in my sql statement like this...

CASE WHEN Value = ' ' THEN NULL END AS Value

But when I do this I get this error...

None of the result expressions in a CASE specification can be NULL.

Is there a better way to accomplish what I'm after?

Thanks

I suggest also trimming the value and testing for empty string instead:

select NULLIF( RTRIM(Value), &amp;#39;&amp;#39; ) as Value
from MyTable

SQL Server - Case Statement resulting in NULL

I have a result set in my query that contains empty strings like &amp;#39; &amp;#39;.  I would like to make those NULL in the select clause in my sql statement like this...

CASE WHEN Value = &amp;#39; &amp;#39; THEN NULL END AS Value

But when I do this I get this error...

None of the result expressions in a CASE specification can be NULL.

Is there a better way to accomplish what I&amp;#39;m after?

Thanks

Microsoft SQL Server 2008 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. Major improvements include the  Always On technologies and support for unstructured data types.

Microsoft SQL Server 2008

Microsoft SQL Server 2005 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. It includes support for managing XML data and allows a database server to be exposed over web services using Tabular Data Stream (TDS) packets encapsulated within SOAP (protocol) requests.