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 System PackagesTransaction Control 

GDSCODE

Firebird error code of the error in a WHEN …​ DO block

Available in

PSQL

Type

INTEGER

Syntax
GDSCODE

In a “WHEN …​ DO” error handling block, the GDSCODE context variable contains the numeric value of the current Firebird error code.GDSCODE is non-zero in WHEN …​ DO blocks, if the current error has a Firebird error code.Outside error handlers, GDSCODE is always 0.Outside PSQL, it doesn’t exist at all.

Note

After WHEN GDSCODE, you must use symbolic names like grant_obj_notfound etc.But the GDSCODE context variable is an INTEGER.If you want to compare it against a specific error, the numeric value must be used, e.g.335544551 for grant_obj_notfound.
Example
when gdscode grant_obj_notfound, gdscode grant_fld_notfound,
   gdscode grant_nopriv, gdscode grant_nopriv_on_base
do
begin
  execute procedure log_grant_error(gdscode);
  exit;
end