删除当前数据库中的表Student的语句应当是()。
A、DELETE TABLE Student
B、DELETE Student
C、DROP Student
D、DROP TABLE Student
A、DELETE TABLE Student
B、DELETE Student
C、DROP Student
D、DROP TABLE Student
B、insert语句执行成功后,返回数据库影响的行数
C、update students set age =20,成功执行后,students表中所有的记录的年龄都变成了20
D、delete from students 语句执行完成后,数据库表students表中的数据都被删除
A、ALTER TABLENAME
B、KILL TABLENAME
C、DELETE TABLENAME
D、DROP TABLENAME
A、update students set Grade=Grade+10 where SID=1
B、update * set Grade=Grade+10
C、update * from stedents set Grade=Grade+10
D、update students set Grade=Grade+10
A、STRUCTURE student;
B、DESCRIBE student;
C、SHOW CREATE TABLE student;
D、VIEW student;
A、DELETE Age from Student
B、UPDATE Student Age
C、ALTER TABLE Student(Age)
D、ALTER TABLE Student DROP Age
A、S.Sno = SC.sno and C.Cno = SC.Cno and SAGE in>=20 and CNAME in ' SOFTWARE '
B、SAGE in>=20 and CNAME in ' SOFTWARE '
C、SAGE>=20 and CNAME=' SOFTWARE '
D、S.Sno = SC.sno and C.Cno = SC.Cno and SAGE>=20 and CNAME=' SOFTWARE '
A、ADD INTO Score VALUES('张三','化学','85')
B、INSERT INTO Score VALUES('张三','化学','85')
C、ADD INTO Score VALUES('张三','化学',85)
D、INSERT INTO Score VALUES('张三','化学',85)
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