ALTER TABLE SERVCLIE ADD (
  IDCONSTERCCOMP VARCHAR2(1) DEFAULT 'S' NOT NULL
)
/
ALTER TABLE SERVCLIE ADD CONSTRAINT CKC_IDCONSTERCCOMP CHECK (IDCONSTERCCOMP IN ('S', 'N'))
/
ALTER TABLE COMPENSACAO MODIFY (
  QTINICIAL DOUBLE PRECISION DEFAULT NULL NULL, 
  QTFINAL DOUBLE PRECISION DEFAULT NULL NULL
)