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Statistics on Ascending Columns

It comes as rather a shock to find out that one of the commonest circumstances in an OLTP database, an ascending primary key with most querying on the latest records, can throw the judgement of the Query Optimiser to the extent that perfomance nose-dives. Fabiano Amorim once again dons snorkel and goggles to explore the murky depths of execution plans to find out why.

2011-09-16

2,528 reads

Technical Article

Adding Custom Code to the Reporting Services 2008 R2

There are numerous circumstances when we wish to add a custom function to a SSRS report in order to cater for needs of the customer which exceeds the capability of the built-in functions in SSRS. In these scenarios we will have to write our own functions. In this article you will see how to add custom code to SSRS.

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2011-09-15

3,644 reads

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RegEx Functions II

By Steve Jones - SSC Editor

Comments posted to this topic are about the item RegEx Functions II

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Question of the Day

RegEx Functions II

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')
 AND BusinessEntityID IN (7,8)

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