how to change query from 2012 to 2008 r2

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SELECT @Principal= IIF(optionfieldvalue='',NULL,CAST(optionfieldvalue as decimal(38,18))) FROM @DATA WHERE TemplateFieldId = 47

this query was written in sql-server 2012. Now i want to change that to 2008 r2.

can any one help who to convert that code

Posted 23-Jul-15 1:46am

Updated 23-Jul-15 2:09am

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Suvendu Shekhar Giri · Accepted Answer · 2015-07-23T02:08:00

You can rewrite it using CASE WHEN as-

SQL

SELECT @Principal= CASE WHEN optionfieldvalue='' THEN NULL ELSE CAST(optionfieldvalue as decimal(38,18)) END FROM @DATA WHERE TemplateFieldId = 47

Hope, it helps :)

Posted 23-Jul-15 2:08am