如下語句: 執(zhí)行該語句后將有幾條記錄插入到表texample表中()
A.1 B.2 C.3 D.4
指出下面sql語句錯誤之處() select id_number “Part Number”, sum(price) “price” from inventory where price >50 group by “Part Number” order by 2;
A.order by 2 B.from inventory C.where price>50 D.group by “Part Number”
A.select round(v_time,’DAY’) from dual B.select round(v_time,’YEAR’) from dual C.select round(v_time,’MONTH’) from dual D.A select round(to_char(v_time,’yyyy’)) from dual