Self SQL Injection
Based on a real fact, this article demonstrates how a bad use of sp_executesql can lead to unpleasant surprises
2018-04-30
1,816 reads
Alessandro Mortola
Work time calculation
One way to calculate how many minutes a person has worked considering holidays and shifts, being given starting and ending date / time
2016-09-29 (first published: 2016-09-08)
581 reads
Indexing Foreign Keys
Foreign Keys are one of the fundamental characteristics of relational databases and enforce the referential integrity. Is it a good idea to index a FK relationship? When can it help?
2016-09-16 (first published: 2015-06-29)
15,756 reads
Cardinality Estimator – What’s new in SQL Server 2014
SQL Server 2014 has introduced a rebuilt Cardinality Estimator (CE) with new algorithms. Which are the biggest differences between the new CE and the previous one? Which one works better? Read more to find out.
2015-04-09
6,827 reads
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SQL Server 2025 Query Performance Tuning: Troubleshoot and Optimize Query Performance
Comments posted to this topic are about the item SQL Server 2025 Query Performance...
Is it uncommon for Dev's to have a data model of the source data
This is a generic question. To the moderators, I wasn't sure where to place...
ROLLUP to calculate Month total for all Categories
Good Afternoon, I have built a table with four columns: Period(Month), Category, Numerator, Denominator....
Question of the Day
Creating JSON I
On SQL Server 2025, what happens when I run this code:
SELECT JSON_OBJECTAGG( 'City':'Denver') GOSee possible answers