这一节将重点介绍如何从单表中选择数据；本文中的最后一节将介绍表连接和如何从多个表中进行选择。

This section focuses on selecting data from a single table; the last section in this article covers table joins and selecting data from multiple tables.

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除非想要利用与更大的表的并置，否则应该将小型的表放在单分区的数据库分区组中。

Small tables should be placed in single-partition database partition groups, except when you want to take advantage of collocation with a larger table.

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清单1显示了单表数据库的模式。

Listing 1 shows a schema for the single table database.

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