This article looks at SQL Server locking and transaction isolation levels, how to set the transaction isolation level, and how some isolation levels use locking, while others use row versioning. It also explains what type of locks data update requires.
2013-07-17
3,573 reads
Some companies put business or application logic in SQL Server using stored procedures, views and functions to return values to the calling applications or perform tasks. This is not unusual in companies that use the SQL Server layer to perform business tasks, such as finance operations, or incorporate application functionality into the programmability layer. Here's a tip to preserve secrecy on some procedures, views or functions in order to maintain security.
2013-07-16
3,864 reads
Data Analysis Expressions (DAX), originally the formula language for PowerPivot workbooks, can also be used within the MDX query window of SSMS to directly access data from a tabular SSAS database, an in-memory database that uses the xVelocity analytics engine and compression. Robert Sheldon shows how easy it is to retrieve data from a tabular database.
2013-07-15
3,237 reads
I have a group of developers that I support and they are reporting they cannot see columns within their tables. I have granted them db_datareader permissions which is a standard at my company for QA environments. Why can't they see their column definitions? Check out this tip to learn more.
2013-07-12
3,682 reads
In this article Greg Larsen will show you how to identify when your index statistics were updated last, what method was used to gather statistics, and how to update your statistics.
2013-07-11
3,074 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
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
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
Fifty years after starting the 'Art of Computer Programming', Don Knuth is still working hard at the project. It is considered amongst the "hundred or so books that shaped a century of science”. Richard Morris asks him how things are going, and to find out more about his many achievements.
2013-07-04
4,357 reads
By Steve Jones
This was Redgate in 2010, spread across the globe. First the EU/US Here’s Asia...
By John
Today is Christmas and while I do not expect anybody to actual be reading...
By Bert Wagner
Until recently, my family's 90,000+ photos have been hidden away in the depths of...
Comments posted to this topic are about the item UNISTR Escape
Comments posted to this topic are about the item Celebrating Tomorrow
Comments posted to this topic are about the item SQL Art: I Made a...
In SQL Server 2025, I run this command:
SELECT UNISTR('*3041*308A*304C\3068 and good night', '*') as "A Classic";
What is returned? (assume the database has an appropriate collation)
A: 
B: 
C: 
See possible answers