使用你的应用程序代码，因为它最擅长:处理逻辑。 使用数据库来做它最擅长的事情:存储数据。

您可以调试存储过程，但是您会发现在代码中调试和维护逻辑更容易。 通常，每次更改数据库模型时，都需要重新编译代码。

此外，具有可选搜索参数的存储过程是非常不有效的，因为您必须预先指定所有可能的参数，而复杂的搜索有时是不可能的，因为您无法预测一个参数将在搜索中重复出现多少次。

在我看来，你不能在这个问题上投赞成票或反对票。这完全取决于应用程序的设计。

我完全反对在三层环境中使用sp，在这种环境中，前端是应用服务器。在这种环境中，应用服务器用于运行业务逻辑。如果你额外使用sp，你就开始在整个系统中分配业务逻辑的实现，谁负责什么就会变得非常不清楚。最终你将得到一个基本上只会做以下事情的应用服务器:

(Pseudocode)

Function createOrder(Order yourOrder) 
Begin
  Call SP_createOrder(yourOrder)
End

因此，最终你的中间层运行在这个非常酷的4个服务器集群上，每个服务器都配备了16个cpu，实际上它什么都不会做!太浪费了!

如果你有一个臃肿的gui客户端，直接连接到你的数据库或甚至更多的应用程序，这是一个不同的故事。在这种情况下，SPs可以充当某种伪中间层，将应用程序与数据模型解耦，并提供可控的访问。

Something that I haven't seen mentioned thus far: the people who know the database best aren't always the people that write the application code. Stored procedures give the database folks a way to interface with programmers that don't really want to learn that much about SQL. Large--and especially legacy--databases aren't the easiest things to completely understand, so programmers might just prefer a simple interface that gives them what they need: let the DBAs figure out how to join the 17 tables to make that happen.

话虽如此，用于编写存储过程的语言(PL/SQL就是一个臭名昭著的例子)是相当残酷的。它们通常不提供您在当今流行的命令式语言、OOP或函数式语言中看到的任何细节。认为COBOL。

因此，请坚持使用仅抽象了关系细节的存储过程，而不是那些包含业务逻辑的存储过程。

Definitely easier to maintain if you put it in a stored procedure. If there's difficult logic involved that will potentially change in the future it is definitely a good idea to put it in the database when you have multiple clients connecting. For example I'm working on an application right now that has an end user web interface and an administrative desktop application, both of which share a database (obviously) and I'm trying to keep as much logic on the database as possible. This is a perfect example of the DRY principle.

CON

我发现在存储过程中进行大量的处理会使您的DB服务器在扩展您的行为时成为一个单一的不灵活点。

然而，如果您有多个服务器运行您的代码，那么在您的程序中进行所有这些处理而不是sql-server，可能会允许您进行更多的扩展。当然，这并不适用于只进行正常获取或更新的存储procs，而是适用于执行更多处理(如在数据集上循环)的存储procs。

PROS

Performance for what it may be worth (avoids query parsing by DB driver / plan recreation etc) Data manipulation is not embedded in the C/C++/C# code which means I have less low level code to look through. SQL is less verbose and easier to look through when listed separately. Due to the separation folks are able to find and reuse SQL code much easier. Its easier to change things when schema changes - you just have to give the same output to the code and it will work just fine Easier to port to a different database. I can list individual permissions on my stored procedures and control access at that level too. I can profile my data query/ persistence code separate from my data transformation code. I can implement changeable conditions in my stored procedure and it would be easy to customize at a customer site. It becomes easier to use some automated tools to convert my schema and statements together rather than when it is embedded inside my code where I would have to hunt them down. Ensuring best practices for data access is easier when you have all your data access code inside a single file - I can check for queries that access the non performant table or that which uses a higher level of serialization or select *'s in the code etc. It becomes easier to find schema changes / data manipulation logic changes when all of it is listed in one file. It becomes easier to do search and replace edits on SQL when they are in the same place e.g. change / add transaction isolation statements for all stored procs. I and the DBA guy find that having a separate SQL file is easier / convenient when the DBA has to review my SQL stuff. Lastly you don't have to worry about SQL injection attacks because some lazy member of your team did not use parametrized queries when using embedded sqls.

在安全性方面，存储过程要安全得多。一些人认为，无论如何，所有的访问都将通过应用程序进行。许多人忘记了一件事，即大多数安全漏洞来自公司内部。想想有多少开发人员知道应用程序的“隐藏”用户名和密码?

此外，正如MatthieuF所指出的，由于应用程序(无论是在桌面服务器还是web服务器上)和数据库服务器之间的往返次数减少，性能可以得到很大的提高。

In my experience the abstraction of the data model through stored procedures also vastly improves maintainability. As someone who has had to maintain many databases in the past, it's such a relief when confronted with a required model change to be able to simply change a stored procedure or two and have the change be completely transparent to ALL outside applications. Many times your application isn't the only one pointed at a database - there are other applications, reporting solutions, etc. so tracking down all of those affected points can be a hassle with open access to the tables.

我还将在加分栏中加上检查，以使SQL编程掌握在专门的人员手中，并使sp更容易隔离和测试/优化代码。

我看到的一个缺点是，许多语言不允许传递表参数，因此传递未知的数据值可能很烦人，一些语言仍然无法处理从单个存储过程中检索多个结果集(尽管后者在这方面并不使sp比内联SQL差)。