How to setup the AWS CLI for multiple profiles
The AWS CLI provides the ability to use the wide range of Amazon Web Services tools and services straight from the command-line. If you’re …
Read Article →Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How to get the size of an AWS S3 bucket
If you need to get the size of an AWS S3 folder, or even an entire bucket, you can do so with the following command:
If you don’t use aws cli …
Comparing Java and Javascript
Perhaps the first thing that most people ask when they hear the names of these two programming languages are. “Why do they have the same …
Read Article →An Introduction to Data Structures
When bringing up the topic of “Data Structures”, it is first important to understand what they are. TechTarget states that “a data structure is a …
Read Article →Relational Database Proprietary Extensions
Standard Query Language – or SQL for short – is a language designed for relational databases that allows end users such as developers and database …
Read Article →Locks used in Database Management Systems
Database Management Systems (DBMS?) are designed to store any amount of data that can then be retrieved or manipulated at a later date.
In order to …
Read Article →Tail and Grep: display all output but highlight search matches
I tail logs quite a lot.
An example would be to tail the Apache2 access logs.
This is simple to do:
tail -f /var/log/apache2/access.log
This will show …
Read Article →Convert URL String into a Javascript Object
Sometimes you find yourself with a String, something like and you want to repeatably access elements of it correctly.
Let’s say that you want …
Read Article →How to make an HTTP Request in AWS Lambda using Python
The requests module for Python is very useful in helping simplify HTTP/s requests from Python, but how would you use it in an AWS Lambda script? …
How to fix a Javascript Uncaught ReferenceError
Sometimes you may get an error that looks something like this:
Uncaught ReferenceError: <some_variable_or_function> is not defined
At first this …
Read Article →Resolving InsufficientPrivilege Errors in Redshift
If you are getting the mysterious error:
[ERROR] InsufficientPrivilege: permission denied for schema errors
Then you can easily resolve this by …
Read Article →How to increase column size in Redshift database tables
It is only possible to alter VARCHAR columns, and only under the following circumstances:
- You can not alter a column with compression encodings …