I am executing a simple query/stored procedure from my application against a large table and it's taking a long time to execute. The column I'm using in my WHERE clause is indexed and it's very selective. The search column is not wrapped in a function so that's not the issue. What could be going wrong?
2012-09-04
2,480 reads
Although, generally speaking, source control is the truth, a database doesn't quite conform to the ideal because the target schema can, for valid reasons, contain other conflicting truths that can't easily be captured in source control. Dave Ballantyne explains the problems and suggests a solution.
2012-09-03
1,904 reads
SQL Server 2012 AlwaysOn Availability Groups provides a unified high availability and disaster recovery (HADR) solution that improves upon legacy functionality previously found across disparate features. Prior to SQL Server 2012, several customers used database mirroring to provide local high availability within a data center, and log shipping for disaster recovery across a remote data center. With SQL Server 2012, this common design pattern can be replaced with an architecture that uses availability groups for both high availability and disaster recovery. This paper details the key topology requirements of this specific design pattern, including quorum configuration considerations, steps required to build the environment, and a workflow that shows how to handle a disaster recovery event in the new topology.
2012-08-31
2,399 reads
I need to try and find all SQL Servers, not just the ones in my domain. We know there are a couple of appliances that are potentially running SQL Server and we want to see them, too. What can I use to do this?
2012-08-30
2,882 reads
There are seven common antipatterns in T-SQL coding that make code perform badly, and three good habits which will generally ensure that your code runs fast. If you learn nothing else from this list of great advice from Grant, just keep in mind that you should 'write for the optimizer'.
2012-08-29
7,758 reads
Can I export images from SQL Server to a file in Windows? What SQL Server options are available to do so? Check out this tip to learn more.
2012-08-28
3,504 reads
There is a lot of confusion amongst DBAs about using PowerShell due to existence the deprecated SQLPS mini-shell of SSMS and the newer SQLPS module. In a two-part article and wallchart, Michael Sorens explains how to install it, what it is, and some of the excellent things it has to offer.
2012-08-27
3,413 reads
This tip will look at how you can use triggers to replace the functionality you get from the ON DELETE CASCADE option of a foreign key constraint.
2012-08-24
2,441 reads
Adam Machanic is speaking at SQL in the City - Boston on Oct 8, 2012.
2012-08-24
1,488 reads
So how should you install and configure SQL Server 2012 properly? Glenn Berry completes his two-part series by explaining the steps needed to complete the preparation and do the actual installation.
2012-08-23
2,632 reads
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When thinking about the identity property and sequence objects, which of these can be used with numeric and decimal data types?
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