从student表删除年龄大于30的记录的正确SQL命令是A.DELETE FOR年龄30B.DELETE FROM student WHERE年龄30C.DELETE student FOR年龄30D.DELETE student WHERE年龄30
从student表删除年龄大于30的记录的正确SQL命令是
A.DELETE FOR年龄>30
B.DELETE FROM student WHERE年龄>30
C.DELETE student FOR年龄>30
D.DELETE student WHERE年龄>30
相关考题:
使用SQL语句将学生表S中年龄(AGE)大于30岁的记录删除,正确的命令是( )。A.DELETE FOR AGE30B.DELETE FROM S WHERE AGE30C.DELETE S FOR AGE30D.DELETE S WHERE AGE30
使用SQL语句将学生表S中年龄(AGE)大于30岁的记录删除,正确的命令是A)DELETE FOR AGE30 B)DELETE FROM S WHERE AGE30C)DELETE S FOR AGE30 D)DELETE S WHERE AGE30
使用SQL语句将学生表S中年龄(AGE)大于30岁的记录删除,正确的命令是______。A.DELETE FOR AGE>30B.DELETE FROM S WHERE AGE>30C.DELETE S FOR AGE>30D.DELETE S WHERE AGE>30
使用SQL语句将学生表S中年龄(AGE)大于30岁的记录删除,正确的命令是A.DELETE FOR AGE30B.DELETE FROM S WHERE AGE30C.DELETE S FOR AGE30D.DELETE S WHERE AGE30
从student表删除年龄大于30的记录的正确SQL命令是( )。A.DELETE FOR年龄30B.DELETE FROM student WHERE年龄30C.DELETE student FOR年龄30D.DELETE student WHERE年龄30
用SQL语句将STUDENT表中字段“年龄”的值加1,可以使用的命令是A)UPDATE STUDENT SET年龄=年龄+1B) UDDATE STUDENT年龄WITH年龄+1C)REPLACE STUDENT年龄=年龄+1D)REPLACE STUDENT年龄WITH年龄+1
使用SQL语句将学生表S中年龄(AGE)大于30岁的记录删除,正确的命令是A.DELETE FOR AGE>30B.DELETE FROM S WHERE AGE>30C.DELETE S FOR AGE>30D.DELETE S WHERE AGE>30
将学生表student中的学生年龄(字段名是年龄)增加1岁,应该使用的SQL命令是:UPDATE student__________