In the SQL Server 2012 execution plan we can see better the true thread reservations for a query and not just information on the maximum degree of parallelism and row distribution across parallel threads; thanks to the new parallel thread usage information.
2012-08-09
5,795 reads
SQL Server 2008 introduced a new feature, Management Data Warehouse (MDW), which allows users to collect metrics on their servers over time to aid in performance troubleshooting. A lot of people try this feature out, because it is easy to set up, and then find that it is not so easy to remove. In fact, removing MDW is not supported; in SQL Server 2012, though, a new system stored procedure was added to make this process easier. The problem is that this stored procedure (as well as several of the workarounds I've seen published) can leave several objects behind.
2012-08-09
2,418 reads
A free day of training in Cleveland, OH. Come see MVPs Allen White and others talking about all aspects of SQL Server. For free.
2012-08-08
1,631 reads
In order to be able to take data from a variety of sources, manipulate it, and then export it to one of several destinations, SSIS has to use its own data types. If you hit problems, then you may need to intervene to ensure an appropriate conversion.
2012-08-08
3,143 reads
This article provides a simple solution to display any data by fiscal year instead of calendar year.
2012-08-07
5,814 reads
One of the most obvious bottlenecks in the performance of tempdb is caused by PAGELATCH, in-memory latch contention on the allocation bitmap of each data file used. We can use one of the rules-of-thumb to choose what should be roughly the best number of files, but how then do you check to see whether you've got it right for your data and workload?
2012-08-07
2,869 reads
Today we have a guest editorial from Hakim Ali. Today Akim talks about why holding back out of politeness in code reviews may be a self-defeating practice.
2012-08-06
389 reads
Managing log files in a large enterprise environment can be an overwhelming task. In this article I will show you how to automate some of the work using SQL Alerts and Powershell 2.0
2012-08-06
2,816 reads
ReFS, the new file system with Windows Server 2012, should be good news, but its apparent lack of support for SQL Server is a serious concerned for Phil Factor.
2012-08-06
507 reads
I've been charged with coming up with a quick solution to audit login changes on my SQL Servers. However, there's no budget so I'm going to have to come up with basic scripts and the like to do the work. Is this tip we cover a solution for you to audit login changes.
2012-08-06
2,872 reads
By Steve Jones
It’s time for T-SQL Tuesday again and this is a great prompt to start...
How I used AI for this postChatGPT to generate images based on info specifically...
By ReviewMyDB
My T-SQL Tuesday #202 entry for Marlon Ribunal's invitation on memorable SQL Server outages....
Hello everyone, Last week we performed an upgrade of our SQL Server instance, moving...
Comments posted to this topic are about the item Adding new column with DEFAULT
I've got a web application for my side business. I've added a SQL Server...
Which number will the COUNT() return after executing the following statements:
DROP TABLE IF EXISTS #test; CREATE TABLE #test (id INT) INSERT INTO #test (id) SELECT * FROM GENERATE_SERIES(1, 3) AS gs ; ALTER TABLE #test ADD flag BIT CONSTRAINT DF_#test_flag DEFAULT 0; go UPDATE #test SET flag = 0 WHERE id = 1 UPDATE #test SET flag = 1 WHERE id = 2 INSERT INTO #test (id) VALUES (4) SELECT COUNT(*) FROM #test AS t WHERE flag = 0See possible answers