Transactions in SQL Server are probably no more complicated than those in other RDBMS products, which is to say they are fairly complex. Don Peterson continues with part 3 of his series and takes a look at transaction isolation levels and how they interact with multiple connections and their impact on locking.
2004-12-02
15,400 reads
Have you ever wondered if you could start the execution of a stored procedure (SP) asynchronously from some T-SQL code? What I mean is starting the SP in the background and continuing on with the next line of code in your T-SQL script without waiting for the execution of the SP to complete. If so, then this article might be of some interest to you.
2004-12-01
3,279 reads
E
very day a developer somewhere needs to write code to iterate through SQL Server™ system objects, query and update tables in linked servers, handle optimistic concurrency, and retrieve column and stored procedure metadata. In this month's column, I will address these and other T-SQL development scenarios based on some of the questions I most frequently receive from readers.
2004-11-23
1,686 reads
There are plenty of good sources of information about how to deploy SQL Server in a secure fashion. However, these resources are often targeted at database administrators tasked with securing already developed applications. In addition, there is a rich body of information that discusses writing secure .NET and ASP.NET code, including .NET code that accesses SQL Server. However, many of these resources focus on the data access code that runs on the application servers rather than the Transact-SQL (T-SQL) code that executes within SQL Server. Developing T-SQL code that runs securely on SQL Server is the primary focus of this column.
2004-11-22
2,400 reads
After reading a recent article on identifying islands and gaps in sequential numbers, one of our readers was inspired to develop a more efficient solution for fragmented data. New Author Goce Smilevski brings us his solution and supporting data to show how this can be done better.
2021-04-16 (first published: 2004-11-22)
10,506 reads
SQL Server's Data Transformation Services (DTS) is a fantastic tool for importing data from any type of source. However even with this tool, you sometimes need more flexibility than it appears to have, especially if the data formats are unknown far enough in advance. New author Chris Cathers has developed a technique that allows him to be extremely flexible without causing too many headaches down the road.
2004-10-18
9,103 reads
As you know, relational databases are set-based and aren't particularly suited for row-at-a-time processing. However, in situations with heavily fragmented data (lots of gaps), you may find that row-based processing does better than set-based processing. Alexander Kozak demonstrates.
2004-10-12
1,833 reads
Comparing two SQL Server tables to determine if the data is the same ought to be pretty simple. But then again, vendors like Red Gate Software sell tools to help you do it, so perhaps it isn't so simple. Author Leo Peysakhovich has to do this on a regular basis and none of the 3rd party products appear to work for him. Read his thoughts and samples on how he handles this at his job.
2004-09-22
11,253 reads
T-SQL can be a complex language to work within and code solutions with. Author Stephen Lasham brings us a twist on his last solution of extracting a string from within another string. Read about his method of working with strings in T-SQL.
2004-09-13
7,848 reads
NULL values in columns can indicate a few things, the value isn't known, it's not yet been filled in, or perhaps, as Leo Peysakhovich argues, the column isn't being used? How many SQL Server tables do you have with extra tables and columns that are not being used? Or maybe never have been? This article looks at a statistical analysis of columns using NULLs to determine if you might be able to remove certain columns.
2004-08-25
9,306 reads
By Steve Jones
Thanks to everyone that came to my talks. Slides are below. Best Practices for...
By Steve Jones
I can’t remember how I heard about Small Data SF 2024, but it caught...
By Steve Jones
moledro – n. a feeling of resonant connection with an author or artist you’ll...
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