ALTER TABLE
TB_ZJGL_DWSB_GRMX ADD CONSTRAINT SFZH_UNIQUE UNIQUE(SFZH);
ALTER TABLE TB_ZJGL_DWSB_GRMX
DROP CONSTRAINT SFZH_UNIQUE;
ALTER TABLE
TB_ZJGL_DWSB_GRMX ADD CONSTRAINT SFZH_UNIQUE UNIQUE(SFZH);
ALTER TABLE TB_ZJGL_DWSB_GRMX
DROP CONSTRAINT SFZH_UNIQUE;