"CLR Enabled" is not required to use CLR built-ins
- by AaronBertrand
Books Online articles referencing built-in CLR functions (such as FORMAT() ) have a remark similar to the following: "FORMAT relies on the presence of .the .NET Framework Common Language Runtime (CLR)." A lot of people seem to interpret this as meaning: "You must enable the sp_configure option 'CLR enabled' in order to use FORMAT()." Some then go on and suggest you run code similar to the following before you play with these functions: EXEC sp_configure 'show advanced options' , 1 ; GO RECONFIGURE...(read more)