Additional Articles


Technical Article

Script to List Missing Identity Numbers

I have a table named employees with an identity column named id. Also,last_name is a column in the table named employees. I created the employeestable and inserted 9 rows in it. If I do a select * from employees, theoutput looks like this:id last_name1 a2 b3 c4 d5 e6 f7 g8 h9 iThen I deleted […]

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2004-11-29 (first published: )

145 reads

Technical Article

Data Sanitization Techniques

Data Sanitization is the process of making sensitive information in non-production databases safe for wider visibility. This White Paper is an overview of various techniques which can be used to sanitize sensitive production data in test and development databases.

2004-11-29

1,885 reads

Technical Article

Common Vulnerabilities in Database Security

Creating an enterprise security plan is a complex endeavour. It involves evaluating multiple threats that gain access through many network paths to a hodgepodge of different applications and systems. With the focus on systems and paths, databases are frequently overlooked. Securing the database should be a fundamental tenet for any security practitioner when developing his or her security plan. The database is the source of data, the "crown jewels" in the information economy. Any security effort must start with this in mind and end with the strongest level of controls applied at the database layer.

2004-11-26

2,129 reads

Technical Article

Easy and Fast way to check Backup details

Easy and Fast way to check Backup details. One line query to check backup status for all the databases. No need to go to each database or schedule job. Even you can use this query in customized application to get all the details on a single screen.

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2004-11-25 (first published: )

735 reads

Technical Article

Building a 24 x 7 Database

Over the last few years, corporations have invested billions of dollars to integrate the automations of core business systems in large ERP applications. This paper looks at the risk of downtime and solutions for building an around-the-clock database.

2004-11-24

2,129 reads

Technical Article

Updating Data in Linked Servers, Information Schema Views, and More

E
very day a developer somewhere needs to write code to iterate through SQL Server™ system objects, query and update tables in linked servers, handle optimistic concurrency, and retrieve column and stored procedure metadata. In this month's column, I will address these and other T-SQL development scenarios based on some of the questions I most frequently receive from readers.

2004-11-23

1,686 reads

Technical Article

Writing Secure Transact-SQL

There are plenty of good sources of information about how to deploy SQL Server in a secure fashion. However, these resources are often targeted at database administrators tasked with securing already developed applications. In addition, there is a rich body of information that discusses writing secure .NET and ASP.NET code, including .NET code that accesses SQL Server. However, many of these resources focus on the data access code that runs on the application servers rather than the Transact-SQL (T-SQL) code that executes within SQL Server. Developing T-SQL code that runs securely on SQL Server is the primary focus of this column.

2004-11-22

2,400 reads

Technical Article

For Loop Container Samples

One of the new tasks in SQL Server 2005 is the For Loop Container. In this article we will demonstrate a few simple examples of how this works. Firstly it is worth mentioning that the For Loop Container follows the same logic as most other loop mechanism you may have come across, in that it will continue to iterate whilst the loop test (EvalExpression) is true. There is a known issue with the EvalExpression description in the task UI being wrong at present. (SQL Server 2005 Beta 2).

2004-11-18

3,221 reads

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Question of the Day

How Long is a Long I/O?

In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?

See possible answers