declare
    object_exists exception;
    pragma exception_init (object_exists , -01430);
begin
	execute immediate 'ALTER TABLE FISCAL_IMPRESSORA ADD (INDVALIDAESTADO NUMBER(1) DEFAULT 0 NOT NULL)';
	exception when object_exists then null;
end;
/
declare
    object_exists exception;
    pragma exception_init (object_exists , -01430);
begin
    execute immediate 'UPDATE FISCAL_IMPRESSORA SET INDBLOQUEAECF = 0 WHERE INDBLOQUEAECF IS NULL';
	execute immediate 'ALTER TABLE FISCAL_IMPRESSORA MODIFY (INDBLOQUEAECF DEFAULT 0 NOT NULL)';
	exception when object_exists then null;
end;