System Development Life Cycle

SQLServerCentral Article

An Introduction to Test Driven Development

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There are lots of systems for developing software, but it often seems that DBAs don't adhere to any of them. New author Sudheer Palyam brings us a look at one that he has used in developing T-SQL applications, whereby the test scripts are written first.

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2006-02-09

9,939 reads

External Article

SQL database control and deployment

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If you develop SQL databases, you know how difficult it can be to promote from the development environment to production with any level of confidence that the databases are the same.

When you have upgrades, it’s difficult to identify changes as well, especially when there are multiple developers making changes to multiple databases. The problem is compounded if your target environment is a client’s system over which you have no control. It’s staggering to think about what can happen if there are 600-plus client systems that have various versions of your database.

2005-09-06

2,677 reads

SQLServerCentral Article

Calling All Editing Buffs

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Author Sean McCown would like to see some improvements in the editing tools that are available. He's proposed some changes and ideas to make a better tool. Join the discussion and see if you can get the SQL Server vendors to build something to make every DBA's job easier.

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2005-09-02

4,141 reads

SQLServerCentral Article

Administering a Development Environment

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In any well run development environment, you will have a separate SQL Server for developers to work on, completely different from your production server. However there are a few tricks that Jason Hall brings us that you might want to implement to ensure a smooth running environment.

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2005-08-09

7,581 reads

Technical Article

Using Source Control to Develop Smarter

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Veteran and novice developers alike need source control management (SCM). Also known as asset management, and source code management, SCM helps you (and your team) manage development projects, and the components and code that make up the project.

There are many benefits to using source control management, most notably the ability to develop code faster, smarter and more accurately. Source control management tools help you control your code; especially in multiple developer projects.

2005-03-29

2,049 reads

Technical Article

The Trustworthy Computing Security Development Lifecycle

  • Article

This paper discusses the Trustworthy Computing Security Development Lifecycle (or SDL), a process that Microsoft has adopted for the development of software that needs to withstand malicious attack. The process encompasses the addition of a series of security-focused activities and deliverables to each of the phases of Microsoft's software development process. These activities and deliverables include the development of threat models during software design, the use of static analysis code-scanning tools during implementation, and the conduct of code reviews and security testing during a focused "security push". Before software subject to the SDL can be released, it must undergo a Final Security Review by a team independent from its development group. When compared to software that has not been subject to the SDL, software that has undergone the SDL has experienced a significantly reduced rate of external discovery of security vulnerabilities. This paper describes the SDL and discusses experience with its implementation across Microsoft software.

2005-03-28

1,230 reads

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Where Your Value Separates You from Others

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Fixing the Error

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T-SQL in SQL Server 2025: Encoding Functions

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Question of the Day

Fixing the Error

On SQL Server 2025, I have a database that has this collation: SQL_Latin1_General_CP1_CI_AS. I decide I want to run this code:

SELECT UNISTR('*3041*308A*304C*3068 and good night', '*') AS 'A Classic';
I get this error:Msg 9844, Level 16, State 4, Line 24 The char/varchar input type uses an unsupported collation. Only a UTF8 collation is supported with char/varchar input type in UNISTR function.What is the easiest way to fix this error?

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