A sub-query is a SQL Server statement embedded inside of another SQL Server statement. The database engine treats a sub-query as a virtual table for the execution of the query. A sub-query can be used as a table in a join statement, as a single value in a select statement, in the where clause of a SQL Server query, in the having clause of a SQL Server query, or incorporated in data manipulation statements.
2006-08-07
4,276 reads
So, you're a Microsoft SQL Server administrator flirting with open source, but you're not sure how far you should go on the first migration? Don't worry, there won't be much peer pressure to go "all the way." Look around and you'll find that most businesses making the switch are going only as far as their Web applications.
2006-08-04
3,016 reads
A colleague working on an Informix database needed to search TEXT columns using wildcards. While Informix supports wildcards in LIKE and MATCH predicates, this support does not include TEXT columns. The obvious solution—to export the data to SQL Server—does support such searches.
2006-08-03
2,271 reads
In Part 2 of this series, Wes Dumey talks about some of the key tables in a data warehousing scenario. He covers fact tables, dimensions and some of the other tables you'll see in a data warehouse. Free registration required.
2006-08-02
2,444 reads
In Part 1 of this extensive series, Wes Dumey starts some of the core concepts of data warehousing. In this video he covers what a data warehouse is, why companies use them and what are some of the key components.
2006-07-31
2,785 reads
In this video series, Wes Dumey shows you some of the core basics of data warehousing. Free registration required.
2006-07-28
2,329 reads
One of the responsibilities of the Microsoft.com operations team is to manage the infrastructure that supports the Windows Update and Microsoft Update services, which have client bases in the hundreds of millions and growing. The Windows Update site provides critical updates, security fixes, software downloads, and device drivers for Windows operating systems. Microsoft Update is the service that brings you all the features and benefits of Windows Update.
2006-07-28
1,321 reads
Every DBA needs to know how to do their work under pressure, while facing crisis after crisis. Our most important contribution is to keep the database running. It's an on-call function; you never know what might happen
2006-07-27
3,942 reads
After agreeing on our design goals we began looking for technologies to support them. It turned out that SQL Server™ Service Broker offered the asynchronous messaging support we needed and, since the message-queuing infrastructure is tightly integrated with the SQL Server database engine, our existing database backup, administration, and failover procedures could cover our messaging solution as well.
2006-07-26
1,736 reads
Part 28 of SQL Server 2005 Integration Services series covers the remaining security features intended to protect the confidentiality and integrity of your packages
2006-07-25
1,889 reads
By Kevin3NF
Don’t Let Trouble Sneak Up on You Most SQL Servers run quietly. Until...
By Steve Jones
I had a conversation with a customer asking this question: how can I tell...
By Chris Yates
There was a time when the Chief Data Officer lived in the shadows of...
Comments posted to this topic are about the item Create an HTML Report on...
Hi I have a SP that occasionally get this error: Cannot resolve the collation...
Hi everyone I am getting an error when I create the index but I...
I have two calls to the GENERATE_SERIES TVF in this code:
SELECT TOP 10 gs.value FROM GENERATE_SERIES(1, 10) AS gs ORDER BY NEWID () OPTION (RECOMPILE); go DECLARE @a int = 10; SELECT TOP (@a) gs.value FROM GENERATE_SERIES(1, @a) AS gs ORDER BY NEWID () OPTION (RECOMPILE);In the actual query plans, what is the estimated number of rows for each batch in SQL Server 2022? See possible answers