I want to return the error message from a procedure when an exception happens. In SQL Server you would select the Error_Number() and Error_Message(). How would I do it in FirebirdSql
SET TERM ^ ;
CREATE PROCEDURE sprocname
( id int )
RETURNS
( gcode int, errmsg varchar(250) )
AS
BEGIN
gcode = 0;
errmsg = '';
-- do procedure code here
WHEN ANY DO
BEGIN
gcode = gdscode; -- ??
errmsg = ??;
END
SUSPEND;
END^
SET TERM ; ^
Unfortunately, you will need to do that at the client side, as it is currently not possible to obtain this in PSQL. There is a feature request in the Firebird tracker, which has been implemented for Firebird 4, which is expected to be released in 2019.
See Firebird 4 release notes, section System Function RDB$ERROR():