Theory and design Joe Celko in Theory and design The GROUP BY Clause When you’re learning SQL DML, the most complicated clause is typically the GROUP BY. It’s a fairly simple grouping based... 10 July 2023 27 min read
PostgreSQL Henrietta Dombrovskaya in PostgreSQL When PostgreSQL Parameter Tuning is not the Answer So much about parameters tuning, but does it always help? Welcome to the third and final blog of the “magic... 06 July 2023 9 min read
T-SQL Programming Greg Larsen in T-SQL Programming SQL Subquery in SELECT: Examples & Syntax Guide Learn how to use subqueries in SQL SELECT statements with practical examples. Covers basic subqueries, correlated subqueries, EXISTS, IN, and... 26 June 2023 15 min read
Snowflake Pankaj Gupta in Snowflake Snowflake: A Cloud Warehouse Solution for Analytics This article explains what Snowflake data warehouse is and how it is different from other traditional data warehouses. This article... 19 June 2023 19 min read
Robert Sheldon Working with MySQL transactions MySQL transactions provide an effective method for executing multiple statements as a single unit, making it possible to safely modify... 15 June 2023 19 min read
PostgreSQL Grant Fritchey in PostgreSQL Manipulating Data In PostgreSQL: Learning PostgreSQL with Grant So far in the series I’ve shown how to create databases, tables, constraints, indexes and schema. Now, it’s time to... 12 June 2023 13 min read
Oracle Chandra Rawat in Oracle Oracle INSERT, UPDATE & DELETE: Syntax Guide Complete guide to Oracle INSERT, UPDATE, and DELETE statements with syntax examples. Covers single-row inserts, INSERT ALL, INSERT from SELECT,... 09 June 2023 20 min read
Performance Dennes Torres in Performance SQL Server 2022: Capture SQL Anti-Patterns One of the new Extended Event available in SQL Server 2022 is the query_antipattern. This extended event allows to... 01 June 2023 6 min read
T-SQL Programming Itzik Ben-Gan in T-SQL Programming T-SQL Gap-Filling Challenge A student of mine sent me a T-SQL challenge involving gap-filling of missing dates and balances. I found the challenge... 29 May 2023 19 min read
Blogs Ben Johnston in Blogs Unmasking SQL Server Dynamic Data Masking – Part 1 – Introduction SQL Server Dynamic Data Masking (DDM) is a security feature that hides column data from users who don’t have permission... 26 May 2023 13 min read
MySQL Lukas Vileikis in MySQL Optimizing MySQL: Adding Data to Tables Welcome back to the MySQL optimization series! In case you haven’t been following this series, in the past couple of... 22 May 2023 21 min read
PostgreSQL Ryan Booz in PostgreSQL PostgreSQL Basics: A Template for Managing Database Privileges In the first two articles of this series about PostgreSQL privileges, we reviewed how to create roles, grant them privileges... 18 May 2023 14 min read
T-SQL Programming Aaron Bertrand in T-SQL Programming Changing log growth strategy in SQL Server 2022 When I first saw a bullet item stating SQL Server 2022 would support instant file initialization for log file growth,... 15 May 2023 6 min read
PostgreSQL Henrietta Dombrovskaya in PostgreSQL Uncovering the mysteries of PostgreSQL (auto) vacuum Welcome to the second blog of the “magic of parameters” series. In the first entry, I covered memory parameters, and... 12 May 2023 13 min read
MySQL Robert Sheldon in MySQL Importing data into a MySQL database using LOAD DATA Database and development teams often load data from plain text files into their MySQL databases. The files might be used... 04 May 2023 24 min read
PostgreSQL Ryan Booz in PostgreSQL PostgreSQL Basics: Essential psql Tips and Tricks Having access to the psql command-line tool is essential for any developers or DBAs that are actively working with and... 01 May 2023 14 min read
PostgreSQL Ryan Booz in PostgreSQL PostgreSQL Basics: Getting started with psql PostgreSQL has a separate command-line tool that’s been available for decades and is included with any installation of PostgreSQL. Many... 24 April 2023 8 min read
T-SQL Programming Aaron Bertrand in T-SQL Programming One use case for NOT using schema prefixes I’ve long been a huge advocate for always referencing objects with a schema prefix in SQL Server.… 20 April 2023 6 min read
PostgreSQL Grant Fritchey in PostgreSQL PostgreSQL Schema: Learning PostgreSQL with Grant An important aspect of building and managing a database is organizing the objects within your database. You may have tables... 10 April 2023 9 min read
Blogs Aisha Bukar in Blogs A Beginners Guide To MySQL Replication Part 2: Configuring Source and Replica Servers In the first part of this series, we spoke about MySQL Replication, the different types, replication formats, benefits, and downsides,... 10 April 2023 8 min read
