ALTER TABLE "CU_MEMBER_RETAIL_REGION"
    MODIFY ("EFFECTIVE_END_DATE"  DEFAULT TO_DATE('2099-01-01', 'YYYY-MM-DD'))
    ADD ("BUSINESS_TYPE" NUMBER(1,0) DEFAULT 1 NOT NULL);

COMMENT ON COLUMN "CU_MEMBER_RETAIL_REGION"."BUSINESS_TYPE" IS '业务类型(1-区域选择,2-配送中心)'