Topic modeling can be used to find more detailed insights into text than a word cloud can provide. Sanil Mhatre walks you through an example using Python.… Read more
Part 1: What is testable code, why is it important, and first glimpses on practices that can help Anyone familiar with PL/SQL, the procedural language extension to Oracle SQL, knows that the code they are touching is usually business-critical, likely to be around for a long time, and may undergo many revisions in the future. … Read more
There are several common challenges when creating paginated reports from Power BI datasets. In this article, Adam Aspin explains how to work around several of these issues.… Read more
In this article, Jonathan Lewis discusses why you might want to stop the optimizer from unnesting some subqueries and how to control where the optimizer positions each subquery.… Read more
To guarantee the order of a result set, you must use an ORDER BY clause. In this article, Greg Larsen explains what you need to know about ORDER BY.… Read more
PostgreSQL has an unusually large number of data types. Grant Fritchey reviews each data type and discusses the good and bad points of each.… Read more
After getting a new database in place, the next step is to create tables. In this article, Robert Sheldon walks you through creating tables with SQL Workbench and with scripts.… Read more
You can perform PostgreSQL backups with the pg_dump command. In this article, Grant Fritchey explains how to back up and restore with the pg_dump and pg_restore utilities.… Read more
Azure SQL Database has been around for over ten years and is constantly evolving with new capabilities and options. Dennes Torres explains 8 features and best practices of Azure SQL Database.… Read more
The first step when getting started with MySQL is to get it installed and running. In this article, Robert Sheldon explains how to install it on Windows and create the first database and table.… Read more
Several DAX table functions can be used for paginated reports when you want all the data, not a summary. Adam Aspin explains how to use DAX table functions for paginated reports.… Read more
It’s important to choose the right datatypes when designing a database. Greg Larsen explains the differences between CHAR, VARCHAR and VARCHAR(MAX).… Read more
Vertipaq optimization is a critical component of the columnstore compression process. Edward Pollack explains how it works and what you need to know to manage it.… Read more
To troubleshoot poorly performing SQL in Oracle, you must understand which transformations the optimizer has made. Jonathan Lewis demonstrates several possible optimizations for one query.… Read more
The syntax for creating databases and tables in PostgreSQL is similar to other RDBMS. In this article, Grant Fritchey shows how to create databases and tables.… Read more
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