提起代码重构和单元测试，相信大家都不陌生，重构和单元测试也成为了大家开发中必不可少的一部分，但是您知道数据库重构（Database Refactoring）吗？您知道数据库单元测试（Database Unit Testing）吗？看看SachinRe是怎么说的。

1．数据库重构（Database Refactoring）

在《What is database refactoring?》这篇文章中，SachinRe对Database Refactoring作了如下解释：

Database refactoring is merely extending this concept of refactoring from the application code to your database code. Much in the same way, you can imagine a database rename refactoring would rename a database object and all of its references in the database. Similarly, an extract stored procedure refactoring would pull out a SQL fragment from a stored procedure and place it in its own reusable procedure.

2．数据库单元测试（Database Unit Testing）

在《What is database unit testing?》文章中，SachinRe对Database Unit Testing的解释：

How does this all relate to database development? The direct analog of application unit tests in the database world are tests of a database’s programmability objects. These include, for example, a database’s stored procedures, functions, and triggers.

并且举了一个简单的存储过程单元测试的例子：

DECLARE @CustomerId nchar(5)

SELECT @CustomerId = 'EASTC'

EXEC dbo.CustOrderHist @CustomerId
 

IF (@@ROWCOUNT <> 19)

RAISERROR('Actual Rowcount not equal to expected 19',1,1)

感兴趣的朋友不妨阅读一下上面两篇文章