A.內(nèi)部聯(lián)接 B.全外部聯(lián)接 C.左外部聯(lián)接 D.右外部聯(lián)接
A.SELECT * INTO customers FROM clients B.SELECT INTO customers FROM clients C.INSERT INTO customers SELECT * FROM clients D.INSERT customers SELECT * FROM clients
A.SELECT * FROM st_info WHERE st_name LIKE ´王%´ B.SELECT * FROM st_info WHERE st_name LIKE ´王_´ C.SELECT * FROM st_info WHERE st_name=´王%´ D.SELECT * FROM st_info WHERE st_name=´王__´