Like many SQL Server (and other technology) people, I utilize several social networking vehicles to stay in touch with others in the SQL community. Some of those who don’t use Facebook and Twitter (among others) have expressed skepticism of the real value of social networking. Does it work? Does it provide any value beyond entertainment? Can it actually help your career? I believe the answer to all of these queries is Yes.
2009-07-24
1,698 reads
Microsoft SQL Server 2008 collects statistical information about indexes and column data stored in the database. These statistics are used by the SQL Server query optimizer to choose the most efficient plan for retrieving or updating data. This paper describes what data is collected, where it is stored, and which commands create, update, and delete statistics. By default, SQL Server 2008 also creates and updates statistics automatically, when such an operation is considered to be useful. This paper also outlines how these defaults can be changed on different levels (column, table, and database).
2009-07-24
2,506 reads
This week Steve Jones asks about how important reading is to you, and also about what our digital rights might be in a world where we have connected platforms.
2009-07-24
570 reads
This week Steve Jones asks about how important reading is to you, and also about what our digital rights might be in a world where we have connected platforms.
2009-07-24
556 reads
This week Steve Jones asks about how important reading is to you, and also about what our digital rights might be in a world where we have connected platforms.
2009-07-24
811 reads
This article, the first in a series, discusses T-SQL coding best practices. Join Greg Larsen as he explains how to write queries to optimize SQL Server resources and improve performance.
2009-07-24
8,966 reads
Continuing with his videos on Foreign Keys, MVP Andy Warren shows us how to set constraints between two tables.
2009-07-23
5,059 reads
Out of all the problems you can have with SQL Server troubleshooting connectivity issues can be the most challenging. When you factor in the complexities of Active Directory and SQL Server’s interaction with it fixing SSPI errors can be down right baffling...
2009-07-23
4,833 reads
Paul S. Randal answers your SQL questions: How can I tell when there’s a checksum problem without waiting until the monthly maintenance plan? Is it true that using a GUID as the clustered index key can lead to performance issues with indexes? How can I choose the correct recovery model? And more!
2009-07-23
1,808 reads
During the planning phase I found out about the new partitioning feature in SQL Server 2005 and later editions of SQL Server. It is a vast topic with several associated operations and configurations involved. In this tip I will share what I learned about partitioning, show an example to implement horizontal table partitioning along with a comprehensive list of related benefits and considerations.
2009-07-23
4,028 reads
By James Serra
Making Data AI-Ready, Part 3 (This is the final article in a three-part series...
By Steve Jones
I use ConEmu for my terminal interface. I’m still on Windows 10 at home,...
Creating a Fabric workspace takes about 30 seconds. Restructuring workspaces after people have built...
Comments posted to this topic are about the item Adding new column with DEFAULT...
Comments posted to this topic are about the item Advanced Deployment Scenarios: Stairway to...
Comments posted to this topic are about the item You Need a DBA Pipeline
Which number did the two COUNT(*) return:
DROP TABLE IF EXISTS #tmp CREATE TABLE #tmp (id INT NOT NULL) INSERT INTO #tmp (id) SELECT gs.value FROM GENERATE_SERIES(1, 5) AS gs ALTER TABLE #tmp ADD my_value INT NOT NULL CONSTRAINT df_tmp_my_value DEFAULT 1 SELECT COUNT(*) FROM #tmp AS t WHERE my_value = 1 ALTER TABLE #tmp DROP CONSTRAINT df_tmp_my_value ALTER TABLE #tmp ADD CONSTRAINT df_tmp_my_value DEFAULT 2 FOR my_value SELECT COUNT(*) FROM #tmp AS t WHERE my_value = 1See possible answers