SET TERM ^ ;

CREATE OR ALTER TRIGGER TTBCONTROLE_TABELA_COLUNAS_B01I FOR TBCONTROLE_TABELA_COLUNAS
ACTIVE BEFORE INSERT POSITION 0
AS
BEGIN
  IF (NEW.ID IS NULL) THEN
    NEW.ID = GEN_ID(GTBCONTROLE_TABELA_COLUNAS,1);
END
^

SET TERM ; ^