A.Delete Student‘20140001’ B.Delete Student“20140001” C.Delete Student Where Number=‘20140001’" D.Delete From Student Where Number=”20140001”"
A.將表達式分組 B.改變求值的次序 C.增加表達式的可讀性 D.沒有作用
A.Select* From Student Where Age>=20 ANDAge>=30 B.Select* From Student Where Age>=20 ANDAge<=30 C.Select* From Student Where Age BET WENN 20AND30 D.Select* From Student Where Age>=20&&Age>=30"