Department of Redundancy Department
Ever wonder all the reasons that we use databases instead of file systems? While we don’t think of it too much anymore, the first reason that databases came into existence was to remove redundancies.
2024-04-12
Database Design and Implementation
2023-11-27
3,969 reads
Do You Still Use CHAR?
When designing a database, choosing good datatypes is important, but not necessarily all the time. Today Steve wonders if you still use fixed sting data types.
2022-02-11
200 reads
Mathematicians and SQL
Georg Ferdinand Ludwig Philipp Cantor is considered the creator of set theory, and his theories are the basis for the naïve set theory you learned in school. But there are lots of other mathematicians you should know, such as Hilbert, Frege, Russell, Zermelo and Dedekind. They made a lot of contributions, too. Hilbert Hilbert is […]
2021-01-19
5,550 reads
Data Element Names and Scoping Rules in SQL
How you name data elements in databases and applications programs has often been a matter of personal taste. Decades ago, when I worked for state government, there is a COBOL programmer who would pick a theme for his programs. The paragraphs and variables would be named based on the current theme. One of his programs […]
2021-01-11
2,023 reads
Understanding Data Modeling Part 4: Fact Modeling
In Part 1 we presented some foundation knowledge with which to debunk misconceptions lurking in the "data models" mess in the industry that Friesendal has tried to catalog. In...
2019-05-04
The Blast Radius of a database
Phil Factor feels that the database gets the short shrift in any outage - it's time to stop saying "the database has gone down" and time to start thinking about the resilience of the entire system.
2019-05-04
461 reads
Downgrading A SQL Server Database To An Older Version
"How do I restore a SQL Server backup to a previous version of SQL Server?" is a commonly-asked question. The answer, of course, is you don't - but if you must, there may be some solutions.
2019-05-03
Should I pluralize table names, is it Person, Persons, People or People?
There is a lot of confusion when it comes to designing tables in SQL Server around whether to pluralize names or not. How do you choose whether to pluralize or not?
2019-05-03
Designing Highly Scalable Database Architectures
While architecting cloud native applications, you need to ensure that your system is highly available, performant, scalable, fault tolerant, and has the capability to recover from a disaster scenario. In this article, Samir Behara discusses the options available when designing the database architecture to achieve scalability.
2019-05-02
Blogs
Redgate Summit Comes to the Windy City
By Steve Jones
I love Chicago. I went to visit three times in 2023: a Redgate event,...
Non-Functional Requirements
By Brian Kelley
I have found that non-functional requirements (NFRs) can be hard to define for a...
Techorama 2024 – Slides
You can find the slidedeck for my Techorama session “Microsoft Fabric for Dummies” on...
Forums
AG listener cant be removed
Testing with AG on Linux with Cluster=NONE. it was all going ok and as...
Remove comma inside Comma Delimited File csv in SSIS Using Script task
Hi, I have two tables: one for headers with 9 fields and another for...
Inserting 100K rows Performance - Baseline Performance
We're trying to understand how quick new versions of SQL server can be. Obviously...
Question of the Day
The "ORDER BY" clause behavior
Let’s consider the following script that can be executed without any error on both SQL Sever and PostgreSQL. We define the table t1 in which we insert three records:
create table t1 (id int primary key, city varchar(50)); insert into t1 values (1, 'Rome'), (2, 'New York'), (3, NULL);If we execute the following query, how will the records be sorted in both environments?
select city from t1 order by city;See possible answers