Question

I cannot understand the error because I’m not trying to convert to numeric the variable @FQTROQ.

declare @FQTROQ varchar(30)
declare @FQNUTQ decimal(6,0)
set @FQTROQ = 'R-354'
set @FQNUTQ = 100

SELECT ( CASE WHEN (@FQTROQ is not null and @FQTROQ <> '')
THEN ( @FQTROQ )
ELSE ( @FQNUTQ ) END ) AS Numero_Troquel

Any help? thanks

Answer 1

declare @FQTROQ varchar(30)
declare @FQNUTQ decimal(6,0)
set @FQTROQ = 'R-354'
set @FQNUTQ = 100

SELECT CASE WHEN (@FQTROQ is not null and @FQTROQ <> '')
THEN @FQTROQ
ELSE CAST(@FQNUTQ AS VARCHAR(30)) END AS Numero_Troquel

You need to cast the DECIMAL as a VARCHAR so that the output from the CASE statement have the same output value.