Some applications create tables with columns of character data type only.
一些应用程序创建只包含字符数据类型的列的表。
To save time entering data after you create the tables, you can use a feature for defining some initial data to be populated as you create tables.
为了在创建表之后节省输入时间,您可以使用一个特性定义一些初始数据,从而在创建表时填充这些数据。
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。
Well basically what we're doing is we're giving ourselves the ability to create data types the same way that we have some built-ins, so we have things like int, float, string, these are built-in data types.
就是要赋值我们自己创建,和内置的数据类型,相同的数据类型的能力,我们有一些内置的数据类型,如int,float,string等,如果你考虑下这些数据类型。
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