You will encounter different categories of use cases in your project, so select a representative use case from each category early on and work on it.

你将在你的项目中碰到不同的用例种类，因此尽早地从每个种类中选出一个代表性的用例，用它进行工作。

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Having the constraints defined in the database allows DB2 to know relationships between tables and in some cases allows it to select better access plans based on that knowledge.

在数据库中定义约束使DB 2可以知道表之间的关系，并且在某些情况下允许DB 2根据这样的知识选择更好的访问计划。

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In most cases, well-suited SQL statements are very simple SELECT statements that reference only a single table or are INSERT, UPDATE, and DELETE (UID) operations that are executed many times.

在大多数情况下，非常适合使用参数标记的sql语句要么是非常简单的SELECT语句(只引用一个表)，要么是被多次执行的INSERT、UPDATE和DELETE (uid)操作。

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Because his clients usually pay their preparation fees out of their refunds, Joubert's company has had to make changes to accommodate them, including cutting fees in select cases, holding checks until payday or taking payments in installments.

CNN: Tough times bring new troubles on tax day

The rift in the definitions causes a few select cases where the licenses are open source but not technically free software licenses.

FORBES: Beliefs And Misbeliefs About Open Source Software

The FDIC may have to select their first cases in a state where the record of successful use of the in pari delicto defense by third parties is less than in New York or Pennsylvania, for example.

FORBES: FDIC Makes A Case Against Auditors For Bank Failures