好吧，既然我们有意见:

我认为表名应该是复数。表是实体的集合(表)。每一行表示一个实体，表表示集合。因此，我将Person实体表称为People(或Persons，随您喜欢)。

对于那些喜欢在查询中看到单一“实体名称”的人来说，这就是我使用表别名的原因:

SELECT person.Name
FROM People person

有点像LINQ的“from person in people select person. name”。

至于2、3和4，我同意@Lars的观点。

这里的回答有点晚，但简而言之:

复数表名:我的偏好是复数 单个列名:是的 前缀表或列:

表:*通常*没有前缀是最好的。 列:没有。

在命名项时使用任何大小写:表和列都使用PascalCase。

细化:

(1)你必须做什么。很少有事情是你每次都必须以某种方式去做的，但还是有一些。

Name your primary keys using "[singularOfTableName]ID" format. That is, whether your table name is Customer or Customers, the primary key should be CustomerID. Further, foreign keys must be named consistently in different tables. It should be legal to beat up someone who does not do this. I would submit that while defined foreign key constraints are often important, consistent foreign key naming is always important You database must have internal conventions. Even though in later sections you'll see me being very flexible, within a database naming must be very consistent . Whether your table for customers is called Customers or Customer is less important than that you do it the same way throughout the same database. And you can flip a coin to determine how to use underscores, but then you must keep using them the same way. If you don't do this, you are a bad person who should have low self-esteem.

你可能应该做的事。

Fields representing the same kind of data on different tables should be named the same. Don't have Zip on one table and ZipCode on another. To separate words in your table or column names, use PascalCasing. Using camelCasing would not be intrinsically problematic, but that's not the convention and it would look funny. I'll address underscores in a moment. (You may not use ALLCAPS as in the olden days. OBNOXIOUSTABLE.ANNOYING_COLUMN was okay in DB2 20 years ago, but not now.) Don't artifically shorten or abbreviate words. It is better for a name to be long and clear than short and confusing. Ultra-short names is a holdover from darker, more savage times. Cus_AddRef. What on earth is that? Custodial Addressee Reference? Customer Additional Refund? Custom Address Referral?

(3)你应该考虑什么。

I really think you should have plural names for tables; some think singular. Read the arguments elsewhere. Column names should be singular however. Even if you use plural table names, tables that represent combinations of other tables might be in the singular. For example, if you have a Promotions and an Items table, a table representing an item being a part of a promotion could be Promotions_Items, but it could also legitimately be Promotion_Items I think (reflecting the one-to-many relationship). Use underscores consistently and for a particular purpose. Just general tables names should be clear enough with PascalCasing; you don't need underscores to separate words. Save underscores either (a) to indicate an associative table or (b) for prefixing, which I'll address in the next bullet. Prefixing is neither good or bad. It usually is not best. In your first db or two, I would not suggest using prefixes for general thematic grouping of tables. Tables end up not fitting your categories easily, and it can actually make it harder to find tables. With experience, you can plan and apply a prefixing scheme that does more good than harm. I worked in a db once where data tables began with tbl, config tables with ctbl, views with vew, proc's sp, and udf's fn, and a few others; it was meticulously, consistently applied so it worked out okay. The only time you NEED prefixes is when you have really separate solutions that for some reason reside in the same db; prefixing them can be very helpful in grouping the tables. Prefixing is also okay for special situations, like for temporary tables that you want to stand out. Very seldom (if ever) would you want to prefix columns.

表名一定要保持单数，person而不是people 我也一样 不。我见过一些糟糕的前缀，以至于声明我们处理的是一个表(tbl_)或一个用户存储过程(usp_)。后面跟着数据库名…不要这样做! 是的。我倾向于PascalCase我所有的表名

我认为这些问题的最佳答案将由您和您的团队给出。有一个命名约定比命名约定的具体方式重要得多。

因为这个问题没有正确答案，你应该花点时间(但不要太多)选择你自己的习惯——这是重要的部分——坚持它。

当然，寻求一些关于标准的信息是很好的，这就是你要问的，但不要因为你可能得到的不同答案的数量而焦虑或担心:选择一个对你来说更好的答案。

以防万一，以下是我的答案:

是的。表是一组记录，老师或演员，所以…复数。 是的。 我不用它们。 我经常使用的数据库——Firebird——所有内容都是大写的，所以没关系。不管怎样，当我在编程时，我以一种更容易阅读的方式写名字，比如releaseYear。

这里有一个链接，提供了一些选择。我正在寻找一个简单的规范，我可以遵循，而不是依赖于一个部分定义的规范。

http://justinsomnia.org/writings/naming_conventions.html

我的观点是:

1)不，表名应该是单数。

虽然对于简单的选择(select * from Orders)似乎有意义，但对于OO等效(Orders x = new Orders)则没有意义。

数据库中的表实际上是该实体的集合，当你使用set-logic时，它更有意义:

select Orders.*
from Orders inner join Products
    on Orders.Key = Products.Key

最后一行，连接的实际逻辑，看起来与复数表名混淆。

我不确定是否总是使用别名(如Matt建议的那样)可以消除这种情况。

2)它们应该是单数，因为它们只拥有一种属性

3)如果列名有歧义(如上所述，它们都有一个名为[Key]的列)，表名(或其别名)永远不能很好地区分它们。您希望查询能够快速键入，并且简单-前缀会增加不必要的复杂性。

4)无论你想要什么，我都推荐CapitalCase

我不认为有任何一套绝对的指导方针。

只要你在应用程序或数据库中选择的是一致的，我不认为这真的很重要。