Combinations, permutations, and derangements
Joe Celko explains how several mathematical concepts, combinations, permutations, and derangements, relate to databases.
2022-06-01
Additional Articles
Managing Database Code Quality in a Flyway Development
In this article, I'll discuss the most important quality metrics for a database development, and then practical ways to ensure that a Flyway-managed database is designed and implemented to a high enough standard that it is reliable to use.
2022-06-01
Getting Started with Flyway and any RDBMS
How to get started with Flyway, as simply as possible, using PowerShell. This article provides a practice set of Flyway migration scripts that will build the original pubs database on either SQL Server, PostgreSQL, MySQL, MariaDB or SQLite and then migrate it from version to version, making a series of improvements to its schema design.
2022-05-30
Search all String Columns in all SQL Server Tables or Views
In this article we look at T-SQL script you can use to search for a string in every table and view in every database or in a specific database.
2022-05-30
Memory profiling in Python with tracemalloc
You can find memory leaks in Python code with tracemalloc. In this article, Priyanka Nawalramka demonstrates how to use tracemalloc to find the leaks.
2022-05-27
Simple Reporting with Flyway and Database Models
If you can generate a file-based (JSON) model for each new version of a database, produced by a Flyway migration, then you have an easy way to run simple reports to help you search, list, and understand the structure of these databases. I'll show how to produce the models using PowerShell and then run some queries against them to generate the reports.
2022-05-27
Oracle optimizer removing or coalescing subqueries
The Oracle optimizer often changes the query to get better performance. In this article, Jonathan Lewis explains two more optimizations involving subqueries.
2022-05-25
Sharing SQL Prompt Code Snippets and Styles via the Redgate Platform
SQL Prompt users can now share formatting style or code snippets in designated Team spaces on the Redgate Platform. Louis Davidson explains how it works.
2022-05-25
Database DevOps: Standardize, Automate, Monitor & Protect
See how our end-to-end framework for extending DevOps to your database enables your organization to balance the demand to deliver software fast with the need to protect and preserve business critical data.
2022-05-23
Getting results using less T-SQL
There is usually more than one way to write a query. In this article, Edward Pollack explains a few ways to write simpler T-SQL code.
2022-05-23
Blogs
Git forked
Forgive me for the title. Mentally I’m 12. When I started my current day...
Setting FK Constraints in Data Modeler
By Steve Jones
One of the things a customer asked recently about Redgate Data Modeler was how...
Webinar: Navigating the Database Landscape in 2026
By Steve Jones
For a number of years, we’ve produced the State of the Database Landscape report,...
Forums
SSMS 22 Latest Update Crashing
Hi all, I've just had to roll back my SSMS 22 version from 22.3.0,...
Transactional Replication setup issue
Hi! I've been banging my head against the wall for 2 days now trying...
The Power of Data and Privacy
Comments posted to this topic are about the item The Power of Data and...
Question of the Day
What's the Date?
In SQL Server 2025, there is a new function that returns the current date without the time. What is it?
See possible answers