I recently wrote a post about how to query hierarchical data without recursion in PostgreSQL. Now it is time to talk about how to do it with recursion. š CTEs (Common Table Expressions), AKA WITH clauses, provide us the ability Read more…
Hierarchical data stored in a relational database such as PostgreSQL can be tricky to work with. An organization is an example of a hierarchical structure. For example, let’s say that we need to represent employees: Davy Crocket Cindy Cruz George Read more…
If you are annoyed by the fact that you can no longer control the volume of native videos in Google Chrome you are not alone. Originally Chrome allowed you to control the volume of videos: Now Chrome’s new video element Read more…
Making certain JavaScript UI solutions work with Vue can be a bit of a hassle at times especially if you are new to Vue. Ace editor, for example, is a great solution for developer that want to add a syntax Read more…
Recently I added toBase() to YourJS. The purpose of this function is to make a straight-forward way to convert numbers to a base (from 2 to 36). Of course you can easily use native JavaScript by using Number.prototype.toString(), but the Read more…
One thing I started doing last week was writing PL/pgSQL functions for each of my JasperReports. Each function essentially just runs and returns the rows of a query. One question that I had for a long time was how can Read more…
One of the things I understand but dont really like about the range(), which is available in utility libraries such as lodash and YourJS, is that it produces an array of numbers ranging from the starting number to the ending Read more…
If you have used regular expressions in JavaScript before you probably know that you can match any non-line-terminating character with just the dot (/./). Of course, you may also want to match absolutely any character in which case you can Read more…
Most Recent Week Day Recently I was reviewing someone’s code for a function in PostgreSQL and I saw a block that was supposed to calculate the most recent Friday of the week. After working on improving it I came up Read more…
I recently finished creating a Desktop application that can converter Excel files into CSV, TSV and JSON files. This application allows you to select a root folder containing all of the Excel files that you want to convert then you Read more…