create database school on primary
(name='school_data',
   filename='f:/xscj.mdf',
   size=5M,
    maxsize=50M,
   filegrowth=10%)
log on(name='school_data',
   filename='f:/xscj.ldf',
   size=2M,
    maxsize=5M,
   filegrowth=1M)

怎么显示有M选项无效使用呢

drop database scho2ol on primary  
 (name='school_data1',
   filename='f:\xscj\xscj2.mdf',
   size=5,
    maxsize=50,
   filegrowth=10%)
log on(name='school_data',
   filename='f:\xscj\xscj2.ldf',
   size=2,
    maxsize=5,
   filegrowth=1)    这样就可以了。       谢谢