Articles

External Article

The SQL Server Sqlio Utility

If, before deployment, you need to push the limits of your disk subsystem in order to determine whether the hardware’s I/O capacity meets the needs of a database application, if you need performance baselines, or if you want to identify any performance-related issues, then why not use the sqlio utility?

2014-02-13

6,077 reads

External Article

Nesting Levels in SQL

The 'Structured' part of SQL denotes the fact that queries can be nested inside each other in such a way that, wherever you can use a table, you can use a table expression. Such derived tables can provide powerful magic, to which is added CTEs and Lateral Tables.

2014-02-11

4,675 reads

External Article

Black Day at I/O Gulch

Not long ago, a crack team of SQL Server experts was flamed for a crime against database normalization they didn't commit. Today, Joe Deebeeay had a problem, no one else could help, so he found these exiled experts. Together Joe and the DBA-Team get to the bottom of high disk I/O.

2014-02-10

2,564 reads

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RegEx Functions IV

By Steve Jones - SSC Editor

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Question of the Day

RegEx Functions IV

I have this data in a table in a SQL Server 2025 database:

EmailAddressID EmailAddress
7              dylan0@ADVENTURE-WORKS.COM
8              Diane1@ADVENTURE-WORKS.COM
If I run this query, which row(s) are returned?
SELECT top 10
 *
 FROM person.EmailAddress
 WHERE REGEXP_LIKE(EmailAddress, '^D', 'i')
 AND BusinessEntityID IN (7,8)

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