2024-10-14
482 reads
2024-10-14
482 reads
2024-05-08
639 reads
2024-02-19
455 reads
Introduction According to the official documentation, the READ COMMITTED isolation level “specifies that statements cannot read data that has been modified but not committed by other transactions”. So, one could think that a record returned under this isolation level existed in the committed state at the time of reading. In this article, I am going […]
2021-10-01
2,104 reads
2021-09-29
654 reads
A detailed description of a technique for the the solution of the Bin Packing Problem, that involves a recursive CTE and Window functions
2020-05-14 (first published: 2020-04-23)
5,468 reads
Introduction TOP is one of the many syntactical operators available in T-SQL and at a first view, it could seem very simple and not particularly interesting. According to the official documentation, it “limits the rows returned in a query result set to a specified number of rows or percentage of rows”. The following is the […]
2019-06-04
5,109 reads
Based on a real fact, this article demonstrates how a bad use of sp_executesql can lead to unpleasant surprises
2018-04-30
1,777 reads
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)
564 reads
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)
15,600 reads
By Steve Jones
feresy – n. the fear that your partner is changing in ways you don’t...
This article provides a comprehensive overview of the ORDER BY clause within SQL window...
Want to build a data analytics foundation that transforms raw data into valuable business...
Comments posted to this topic are about the item The Cloud Security Problem, which...
Hi, I have a simple table with 5 columns as follows with about 80,000...
hi everyone I have a SP that is run in SSIS. That particular SP...