Deprecated. Don't use for new development and try to migrate existing uses.
Type:
Scalar function
This function can be used to validate if a conversion to the uniqueidentifier datatype is possible for a given string.
The special case of a null-string will give a return value of 0.
Alternatives
Use the built-in SQL server function
SELECT TRY_CONVERT(uniqueidentifier, x);
Be careful with differences in behavior for '' and trailing/leading whitespace characters, space, tab new line etc.
Return value: bit
Returns 1 if conversion is possible and 0 otherwise.
Parameters
@str
mandatory
varchar(8000)