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When I attempt to use SQL Server User Defined Function in my SQL code in load script (qlik sense) it generated a cryptic error. I have ensured that the connection account has access to the udf and everything runs perfectly under the same account in SSMS. I have tried other udfs which generate similar errors. For the sake of this example, I used the validate email function below:
Create FUNCTION [dbo].[udf_ValidateEmail] (@email varChar(255))
RETURNS bit
AS
begin
return
(
select
Case
When @Email is null then 0 --NULL Email is invalid
When charindex(' ', @email) <> 0 or --Check for invalid character
charindex('/', @email) <> 0 or --Check for invalid character
charindex(':', @email) <> 0 or --Check for invalid character
charindex(';', @email) <> 0 then 0 --Check for invalid character
When len(@Email)-1 <= charindex('.', @Email) then 0--check for '%._' at end of string
When @Email like '%@%@%'or
@Email Not Like '%@%.%' then 0--Check for duplicate @ or invalid format
Else 1
END
)
end
