A.ORDER BY CLASSES B.DORDER CLASSES C.GROUP BY CLASSES D.GROUP CLASSES
A.刪除當(dāng)前數(shù)據(jù)庫中整個employee表,包括表結(jié)構(gòu) B.刪除當(dāng)前數(shù)據(jù)庫中employee表內(nèi)的所有行 C.由于沒有where子句,因此不刪除任何數(shù)據(jù) D.刪除當(dāng)前數(shù)據(jù)庫中employee表內(nèi)的當(dāng)前行
A.START TRANSACTION B.BEGIN TRANSACTION C.BEGIN COMMIT D.START COMMIT