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