Create the database tables for the sample application.
为样例应用程序创建数据库表。
Now you need to create the database tables and some sample data.
现在需要创建数据库表和一些样例数据。
Some updates change code, while others also change database tables.
有一些更新更改代码，而另一些还会更改数据库表。
Optionally, you can now define the initial data for your database tables.
现在，您可以为数据库表定义初始数据，这是可选的。
If you're following along, go ahead and set up your three database tables now.
理解这些内容后，现在就可以着手建立这3个数据库表。
A short term fix (as has been done before), is to optimize the database tables.
一个临时的解决方法是优化数据库表(就像以前做的)。
A short term fix (as has been done before), is to optimize the database tables.
一个临时的解决方法是优化数据库表(就像以前做的)。
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