题目内容

下面选项中,用于删除表中记录的语法格式,正确的是

A. DELETE表名 [WHERE 条件表达式];
B. DELETE FROM 表名 [WHERE 条件表达式];
C. DROP 表名 [WHERE 条件表达式];
DELETE INTO 表名 [WHERE 条件表达式];

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更多问题

更新student表id=1的记录,name更新值为”youjun”,grade更新值为98.5,下列选项中,能够完成上述功能的SQL语句是()

A. UPDATE student set name=’youjun’ grade=98.5 where id=1;
B. UPDATE student set name=’youjun’, grade=98.5 where id=1;
C. UPDATE FORM student set name=’youjun’ ,grade=98.5 where id=1;
D. UPDATE student Values name=’youjun’ grade=98.5 where id=1;

下面选项,用于删除表中记录的SQL语句是

A. DELETE student ,where id=11;
B. DELETE FROM student where id=11;
C. DELETE INTO student where id=11;
DELETE student where id=11;

下面更新的SQL语句中,语法正确的是

A. update user set id = u001 ;
B. update user(id,username) values(u001,jack);
C. update user set id=‘u001’,username=‘jack’;
D. update into user set id =‘u001’, username=‘jack’;

欲往表中增加一条记录,应该用哪一条SQL语句()

ALTERTABLE
B. .INSERTINTOTABLE
CREATETABLE
DROPTABLE

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