-- ABS-35940 
COMMENT ON COLUMN CARTTYPE.CATEGORY
  IS '0 = OR Cart 1 = Cleanroom Cart 2 = Batch Cart';

ALTER TABLE CARTTYPE
  DROP CONSTRAINT CATEGORY_VALID1_1;
ALTER TABLE CARTTYPE
  ADD CONSTRAINT CATEGORY_VALID1_1
  CHECK (CATEGORY IN (0, 1, 2));
