Many databases have large tables with hundreds of millions of rows. However, many of these tables are simply keeping a log or history data that can be archived and kept outside the user database in a special archive database.
2013-07-10
38,774 reads
In this article, you will learn what query optimisation statistics are and how SQL Server query optimizer uses statistics. You will also learn how to create and manage statistics, and what are the different ways to determine when statistics were last updated in SQL Server.
2013-07-10
4,410 reads
SQL Saturday is a training event for SQL Server professionals and those wanting to learn about SQL Server. This event will be held Jul 13 2013 at Grantham-Allee 20, Sankt Augustin, Cologne/Bonn, Rheinland, 53757 , Germany.
2013-07-09 (first published: 2013-07-05)
332 reads
Forwarded records in SQL Server can cause performance issues on heap tables because the record outgrows the page and the database engine uses pointers to reference the data. The best practice is to have a clustered index on every table, however, sometimes there are cases when a clustered index is not needed.
2013-07-09
3,188 reads
The continuing drop in the price of memory has made fast in-memory OLTP increasingly viable. SQL Server 2014 allows you to migrate the most-used tables in an existing database to memory-optimized 'Hekaton' technology, but how you balance between disk tables and in-memory tables for optimum performance requires judgement and experiment.
2013-07-08
3,567 reads
This metric returns the number of check constraints that have their is_not_trusted flag set to 1 in the sys.check_constraints table. Untrusted constraints force SQL Server to construct less efficient query plans, because it doesn’t know enough about the kind of data contained in the table. This can point to a data integrity issue which should be investigated.
2013-07-08
2,585 reads
2013-07-05 (first published: 2010-11-23)
20,845 reads
A comprehensive list of trace flags for SQL Server that you can use to configure your server instance.
2013-07-05 (first published: 2010-06-03)
30,273 reads
SQL Server 2012 Integration Services introduces an innovative approach to deploying SSIS projects, known as Project Deployment Model. However, the traditional, package-based methodology remains available and supported, and, in some scenarios, it might be considered more viable, since it allows for separation of SQL Server Database Engine and SQL Server Integration Services.
2013-07-05
2,205 reads
While AlwaysOn and Columnar lookup are good enough reasons to migrate to SQL Server 2012, you need to be aware of the problems associated with certain virtualize environments.
2013-07-04
8,360 reads
By Steve Jones
I caught this interesting item over on Pinal Dave’s blog: Eleven Interview Questions that...
By Hemantgiri
I use color-coded connections in SSMS to distinguish Production, Pre-Production, UAT, and Development. But...
Comments posted to this topic are about the item Split Large Queries in Athena...
Comments posted to this topic are about the item Finding Trailing Spaces
I have some data in a SQL Server 2025 database. It looks like this for the dbo.Customer table:
CustomerID CustomerName PreferredName 1 Steve Steve 2 Andy Andy 3 Brian Brian 4 Allan Allan 5 Devin Devin 6 Steve Steve 7 Sally SallyI want to detect which names have a single trailing space. The CustomerName is a varchar() and the PreferredName is a CHAR(). Does this query detect the problem rows?
SELECT
CustomerID,
CustomerName,
PreferredName
FROM Customer
WHERE CustomerName <> RTRIM(CustomerName)
OR PreferredName <> RTRIM(PreferredName); See possible answers