请注意，本文中所有的表都使用了dw _前缀，以便于其他表区分开来，特别是authors和books都是很常见的表名。
Note that I've used the dw_ prefix on all tables in this article to distinguish them from other tables you might run across, particularly because authors and books are common table names.
填写您的数据库名，用户名，密码，主机和您想要的表前缀。
Fill out your database name, username, password, host, and your desired table prefix.
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