摘要：
SELECT F.TABLE_NAME, F.CONSTRAINT_NAME, F.COLUMN_NAME, F.POSITION, P.TABLE_NAME, P.COLUMN_NAME, P.POSITION FROM USER_CONSTRAINTS R, USER_CONS_COLUMNS F, USER_CONS_COLUMNS P WHERE R.OWNER = UPPER('dtsc_sys') AND R.TABLE_NAME = UPPER('T_COM_USERS') AND R.CONSTRAINT_TYPE = 'R' A 阅读全文