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

我们的偏好:

Should table names be plural? Never. The arguments for it being a collection make sense, but you never know what the table is going to contain (0,1 or many items). Plural rules make the naming unnecessarily complicated. 1 House, 2 houses, mouse vs mice, person vs people, and we haven't even looked at any other languages. Update person set property = 'value' acts on each person in the table. Select * from person where person.name = 'Greg' returns a collection/rowset of person rows. Should column names be singular? Usually, yes, except where you are breaking normalisation rules. Should I prefix tables or columns? Mostly a platform preference. We prefer to prefix columns with the table name. We don't prefix tables, but we do prefix views (v_) and stored_procedures (sp_ or f_ (function)). That helps people who want to try to upday v_person.age which is actually a calculated field in a view (which can't be UPDATEd anyway). It is also a great way to avoid keyword collision (delivery.from breaks, but delivery_from does not). It does make the code more verbose, but often aids in readability. bob = new person() bob.person_name = 'Bob' bob.person_dob = '1958-12-21' ... is very readable and explicit. This can get out of hand though: customer.customer_customer_type_id indicates a relationship between customer and the customer_type table, indicates the primary key on the customer_type table (customer_type_id) and if you ever see 'customer_customer_type_id' whilst debugging a query, you know instantly where it is from (customer table). or where you have a M-M relationship between customer_type and customer_category (only certain types are available to certain categories) customer_category_customer_type_id ... is a little (!) on the long side. Should I use any case in naming items? Yes - lower case :), with underscores. These are very readable and cross platform. Together with 3 above it also makes sense. Most of these are preferences though. - As long as you are consistent, it should be predictable for anyone that has to read it.

表名为单数。假设您正在建模某人与其地址之间的关系。 例如，如果您正在读取一个数据模型，您会选择 每个人可以住在0、1或多个地址。”或 每个人可以住在0、1或多个地址。 我认为用复数的称呼比把人写成person更容易。加上集合名词通常与单数名词不同。

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

我知道这有点晚了，这个问题已经得到了很好的回答，但我想就#3关于列名前缀的问题提出我的看法。

所有列都应该使用一个对定义它们的表唯一的前缀命名。

例如，给定表“customer”和“address”，让我们分别使用前缀“cust”和“addr”。"customer"中会有"cust_id"， "cust_name"等。“address”将包含“addr_id”，“addr_cust_id”(FK返回给客户)，“addr_street”等。

当我第一次看到这个标准时，我坚决反对它;我讨厌这个主意。我无法忍受所有额外的输入和冗余。现在我已经有了足够的经验，我再也不会回去了。

这样做的结果是数据库模式中的所有列都是唯一的。这有一个主要的好处，它压倒了所有反对它的论点(当然，在我看来):

您可以搜索整个代码库，并可靠地找到涉及特定列的每一行代码。

The benefit from #1 is incredibly huge. I can deprecate a column and know exactly what files need to be updated before the column can safely be removed from the schema. I can change the meaning of a column and know exactly what code needs to be refactored. Or I can simply tell if data from a column is even being used in a particular portion of the system. I can't count the number of times this has turned a potentially huge project into a simple one, nor the amount of hours we've saved in development work.

另一个相对较小的好处是，当你进行自连接时，你只需要使用表别名:

SELECT cust_id, cust_name, addr_street, addr_city, addr_state
    FROM customer
        INNER JOIN address ON addr_cust_id = cust_id
    WHERE cust_name LIKE 'J%';

我在一个有三个dba的数据库支持团队工作，我们考虑的选项是:

任何命名标准都比没有标准好。 没有“唯一正确”的标准，我们都有自己的偏好 如果有现成的标准，就使用它。不要创建新的标准，也不要混淆现有标准。

我们对表使用单数名称。表往往以系统名称(或其首字母缩写)作为前缀。如果系统复杂，这是有用的，因为您可以更改前缀来将表逻辑地分组在一起。Reg_customer, reg_booking和regadmin_limits)。

对于字段，我们希望字段名包括表的前缀/acryonm(即cust_address1)，我们也更喜欢使用一组标准的后缀(_id表示PK， _cd表示“code”，_nm表示“name”，_nb表示“number”，_dt表示“Date”)。

“外键”字段的名称应与“主键”字段保持一致。

即。

SELECT cust_nm, cust_add1, booking_dt
FROM reg_customer
INNER JOIN reg_booking
ON reg_customer.cust_id = reg_booking.cust_id

在开发新项目时，我建议你写出所有首选的实体名称、前缀和首字母缩写，并将此文档交给开发人员。然后，当他们决定创建一个新表时，他们可以引用文档，而不是“猜测”表和字段应该被称为什么。