在每次测试运行之后便删除数据库person表中的所有记录。
All the records in the database PERSON table were deleted after each test run.
该用户需要在 SAMPLE 数据库中创建、修改和删除数据表的权利。
The user needs to have rights to create, modify, and delete tables in the SAMPLE database.
每当数据库的模式发生更改，或者进行像添加或删除数据文件、添加或删除表空间这样的更改时，建议管理员执行脱机备份。
Administrators are advised to do an offline backup whenever the schema of the database changes, or changes are made such as adding or removing data files, and adding or removing of table Spaces.
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