When doing bulk data changes it may be beneficial to disable indexes prior to starting the operation. Fortunately, SQL's rich metadata makes this very easy to automate in a robust fashion.
2018-05-18 (first published: 2015-10-19)
4,932 reads
This guide describes the locking and row versioning mechanisms the SQL Server Database Engine uses to ensure the physical integrity of each transaction and provides information on how applications can control transactions efficiently.
2018-05-18
5,850 reads
I am presenting an MS Excel VBA project which automates the display of SQL Server data tables.
2018-05-17
3,140 reads
One of the truisms of the modern data-driven world is that the velocity and volume of data keeps increasing. We’re seeing more data generated each day than ever before in human history. And nowhere is this rapid growth more evident than in the world of social media, where users generate content at a scale previously unimaginable.
2018-05-17
3,185 reads
In part 1, we described the requirements for calculating attrition and also demonstrated one method that doesn’t rely on writing DAX code at all. In the second part of this tip, we introduce alternative methods of creating a calculation in DAX to calculate the number of employees that have left the company.
2018-05-16
2,619 reads
Covering indexes help UPDATE performance also
2018-05-15
12,498 reads
In many businesses, the HR department needs reports on the employee attrition. This is the number of people that leave the company (depending on the reason they leave; the terminology can also be dismissals or turnover). Suppose you have a table with your employee data, where you also store a possible termination date. How do you calculate the number of people who have left the company using the DAX query language?
2018-05-15
2,702 reads
A tip to auto detect data types for flat file sources in SSIS. Never manually enter them ever again!
2018-05-14
11,497 reads
The Graph Database feature, new with SQL Server 2017, can be used to represent hierarchies. In this article of the series, Robert Sheldon demonstrates how to represent hierarchies in data with complex relationships.
2018-05-14
3,793 reads
What I thought was a strange filtered index problem but turned out to be a DB settings problem
2018-05-11 (first published: 2015-08-26)
5,255 reads
By ChrisJenkins
Do you spend so long manipulating your data into something vaguely useful that you...
By Steve Jones
It was neat to stumble on this in the book, a piece by me,...
Forgive me for the title. Mentally I’m 12. When I started my current day...
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In SQL Server 2025, what is returned by this code:
SELECT EDIT_DISTANCE('Steve', 'Stan')
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