Table Value Constructors (TVCs) are a useful feature of 2008, allowing you to specify tables of values and expressions. Users who are stuck with previous versions of SQL Server can play along, since Rob Sheldon demonstrates that there have always been ways of doing this in SQL Server, though less elegantly.
Joe Celko discusses Nominal, Categorical, Absolute, Ordinal and Rank scales. These are the weakest scales we can use, starting with the weakest.
Today we have a guest editorial from Andy Warren. We often find that many DBAs fall into the job as accidental DBAs, and need more training. Is a boot camp the way to get them up to speed quickly?
Recently I came across with an article on DB2 about using Union instead of OR. So I thought of carrying out a research on SQL Server on what scenarios UNION is optimal in and which scenarios OR would be best. I will analyze this with a few scenarios using samples taken from the AdventureWorks database
This editorial was originally published on Nov 21, 2005. It is being re-run today as Steve is on holiday. How much money is it worth to compromise your ethics? Steve Jones asks today as many companies around the world seem to be doing that.
: "It is a narrow mind that cannot see things from more than one point of view." —George Eliot
Indexes speed retrieval of rows from database tables or views. Here are the top index-related T-SQL statements that SQL Server DBAs should know.
I'd like to hear the thoughts of DBAs out there on Windows and SQL Azure, and the prospects of moving applications and databases into the clouds. How many DBAs work for companies that have done it or are seriously considering it? What are the deepest concerns?
A holiday in the US has most people away from work. Steve Jones leaves you a few thoughts and humor from his vacation.
This article explains the differences between the Truncate and Delete commands in SQL Server.
Creating a Fabric workspace takes about 30 seconds. Restructuring workspaces after people have built...
By Steve Jones
It’s a small change, but a handy one. Flyway Desktop (FWD) now includes the...
By Steve Jones
Software is hard. While I love our Lucid Gravity, I realize that they are...
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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