Unlock the power of SQL's NTILE function with our latest deep-dive article. Learn to segment your data effectively into quantiles for more nuanced analysis, discover common pitfalls and their solutions, and optimize your queries for peak performance.
2024-02-03 (first published: 2024-01-03)
4,423 reads
Welcome to the fascinating world of SQL window functions! Today, we'll explore in detail: RANK() and DENSE_RANK().
2023-11-20 (first published: 2023-11-15)
8,970 reads
Generates prime numbers and puts them into a table for future reference by adhoc queries and database and application code. 100% set-based. DDL embedded.
2009-07-20 (first published: 2009-07-03)
1,310 reads
In this article I discuss a new feature in SQL 2008, table-valued parameters and particularly the restriction that they have to be read-only. I argue that this makes this feature considerably less useful that it could be, and that in order to build scalable applications be able to pass read-write table parameters between stored procedures is essential.
2008-04-02
2,677 reads
Learn how to solve a couple of common T-SQL issues with MVP Jeff Moden.
2008-01-31
17,758 reads
When reading rating information, how do you you knew how many points each separate voter gave if you only know the average rating and the number of votes? Well, you might be surprised to learn that you can figure it out using SQL
2007-10-01
1,919 reads
When a function is wrapped around an indexed column in the WHERE clause it will usually prevent the proper usage of that index. This article gives an example and discusses what other options are available.
2007-09-27
5,005 reads
We have a first look at one of the features in SQL Server 2008 that was cut from SQL Server 2005, but which has been highly anticipated. How many times have you written an "insert new, update match" routine? Jacob Sebastion shows us easy this becomes with the new MERGE keyword in SQL Server 2008.
2007-09-11
14,022 reads
One of the more common requests of an application working with SQL Server is to deal with pages, or sections, or data rather than an entire result set. Often an application retreives the entire result set and then only shows the user a few records, repeating the process with the next page. Regular columnist Jacob Sebastian brings us a more efficient method of implementing paging in SQL Server 2005.
2007-08-29
13,639 reads
One common need that DBAs run into is building a report that returns data in some random order. Especially if you're doing some type of contest, like giving something away at your User Group meeting. Andy Warren brings us a short article on this with a look at the performance impact of randomly ordering results.
2007-08-23
4,336 reads
Juggling meetings, deadlines, and family? Yeah, learning SQL might seem like climbing Mount Everest...
By Vinay Thakur
Microsoft announced on November 2024 a preview for SQL Server 2025 another major release...
By Steve Jones
How to apologize: quickly, specifically, sincerely. Don’t ruin an apology with an excuse –...
Hello! SQL Clustered resource used to come online during manual or automatic failover in...
Code that can be used in order to create dashboard or SSRS report on...
So, I have an interesting situation that I need a double-check on. One of...
I have this data in a SQL Server 2022 table:
PlayerIDPlayerNamePlayerStatus 1The \%ChampActive 2The ChampActive 3The_ChampionActive 4The__ChampionActive 5The\_ChampActiveHow many rows are returned by this code in SQL Server 2022?
select PlayerName from player where playername like 'The\_C%' escape '\'See possible answers