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what is TRY_CAST in sql server

This is the new function introduced with 2016 version of SQL Server. This is used to cast value from its existing data type to a specified target data type. This occurs only if the operation is successful. It returns NULL if the conversion fails.

TRY_CAST is an extended version of the CAST function.

Query

SELECT CAST('Tech-Recipes' as INT) as CastExample;
result
Msg 245, Level 16, State 1, Line 2
Conversion failed when converting the varchar value 'Tech-Recipes' to data type int.

query
SELECT CAST('12' as INT) as CastExample;

result

12

SELECT TRY_CAST('Tech-Recipes' as INT) as CastExample;

Result

NULL

SELECT TRY_CAST('20' as INT) as CastExample;

Result


20

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