A document search on a billion row "EAV" table is predicted to take 134 days. With a few design tweaks and an efficient relational division algorithm, Peter Larsson got it down to milliseconds.
2024-08-07 (first published: 2013-12-09)
3,254 reads
All sorts of project and organizational analysis go into selecting the right database system for the requirements....or so you'd think.
2022-08-27
198 reads
The whole universe, the well-guarded people—may they all query databases together in a single language!
2022-08-13
252 reads
For many years now we always seem to have been on the verge of the revolution in object databases, without it ever quite transpiring. Why is this?
2017-02-21 (first published: 2009-06-17)
740 reads
Tony Davis on why the dusty corners of many organizations still hide numerous SQL 2005 instances.
2015-04-20
139 reads
The next time you are tempted to hammer a performance problem with hardware, why not instead invest that time in hammering and refining your SQL queries? There are rich rewards to be had.
2014-12-26 (first published: 2009-11-02)
539 reads
There is a paradox in the nature of the abstractions that many developers want when dealing with databases. They will strain at the gnat, but swallow a camel (Matthew 23:24). Whereas they will recoil with horror when a DBA suggests that an abstraction layer based on views, functions and procedures in a separate database schema […]
2014-09-15
184 reads
What often starts out as a simple, quick process, gradually expands over time, as developers use SQL Agent to schedule new data feeds, add more complex transformations...
2013-10-28
218 reads
We know a lot about how great exponents of the DBA profession work, but the role is changing rapidly. What makes a great Data Scientist? Or a great BI specialist?
2013-06-24
276 reads
While backup to the Cloud may be useful in terms of optimizing storage across the enterprise, for DBAs it remains essential that they retain fast, easy, access to the backup files. Azure Explorer is a free tool that might help.
2013-04-29
69 reads
By Steve Jones
I think we might have forgotten this a bit, but on one of the...
By Brian Kelley
I refresh my test SQL Servers at least monthly with a fresh VM. Setting...
By Chris Yates
Embracing Total Responsibility In every organization there comes a moment when teams must choose...
We are using MySQL version 5.6 in our Windows Server 2012 R2 environment. We...
We have created a parent table, child table & Audit log table in SQL...
I run this command on my SQL Server 2022 database:
ALTER DATABASE AdventureWorks2017 SET CHANGE_TRACKING = ON;What is the default data retention period? See possible answers