SQL创建数据库文档出错

Question

USE master
GO

EXEC xp_cmdshell 'mkdir d:\PGM Project\Stu_Examination_System\DB', NO_OUTPUT   

/*$$$$$$$$$$$$$建库$$$$$$$$$$$$$$$$$$$$$$$$*/
--检验数据库是否存在，如果为真，删除此数据库--
IF exists(SELECT * FROM sysdatabases WHERE name='SEXAM_SystemDB')
  DROP DATABASE SEXAM_SystemDB
GO
--创建建库SEXAM_SystemDB
CREATE DATABASE SEXAM_SystemDB
 ON
 (
  NAME='SEXAM_SystemDB_data',
  FILENAME='d:\PGM Project\Stu_Examination_System\DB\SEXAM_SystemDB_data.mdf',
  SIZE=3mb,
  FILEGROWTH=15%
 )
 LOG ON
 (
  NAME= 'SEXAM_SystemDB_log',
  FILENAME='d:\PGM Project\Stu_Examination_System\DB\SEXAM_SystemDB_log.ldf',
  SIZE=3mb,
  FILEGROWTH=15%
 )

GO
/*$$$$$$$$$$$$$建表$$$$$$$$$$$$$$$$$$$$$$$$*/

USE SEXAM_SystemDB

不理解哪里错了

Answer 1

提示数据库SEXAM_SystemDB不存在 ，数据库名称是否写错？