问题:
若要在基本表Student中增加一列Addr(通讯地址),SQL语句为( )
A.
ADD TABLE Student Addr Char(20) ;
B.
ALTER TABLE Student ADD Addr Char(20) ;
C.
ALTER TABLE Student COLUMNADD Addr Char(20) ;
D.
ADD TABLE Student ALTER Addr Char(20);
若要在基本表Student中增加一列Addr(通讯地址),SQL语句为( )
A.
ADD TABLE Student Addr Char(20) ;
B.
ALTER TABLE Student ADD Addr Char(20) ;
C.
ALTER TABLE Student COLUMNADD Addr Char(20) ;
D.
ADD TABLE Student ALTER Addr Char(20);
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