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SQLCODE
SQLCODE context variable contains the current SQL error code. Prior to
Firebird 2.0, SQLCODE was only set in WHEN SQLCODE
and WHEN ANY handlers. Now it may also be non-zero in WHEN
GDSCODE and WHEN EXCEPTION blocks, provided that the
condition raising the error corresponds with an SQL error code. Outside error handlers,
SQLCODE is always 0. Outside PSQL it doesn't exist at all.
Type: INTEGER
Example:
when any
do
begin
if (sqlcode <> 0) then
Msg = 'An SQL error occurred!';
else
Msg = 'Something bad happened!';
exception ex_custom Msg;
end
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