Simply Explaining Technology
DynamoDB is a fully managed NoSQL database service provided by Amazon Web Services (AWS). It is designed to deliver high-performance, scalable, and reliable database solutions for applications that require low-latency…
Amazon RDS (Relational Database Service) and Amazon Aurora are both managed database services provided by Amazon Web Services (AWS) that allow you to run a relational database in the cloud…
The world of data storage has come a long way since the days of paper records and filing cabinets. With the advent of the internet and digital technology, storing and…
Emptying a databases involves dropping (deleting) all its tables. The easiest way to do this is to drop and recreate a database: Depending on the system you are working, the…
Hive is an SQL language that processes and analyzes data in Hadoop. It does not require knowledge of any programming language. Hive is not suitable for OLTP, it is designed…
Recently, I had to copy a large database from one server to another. I had 100G free on the source server. Unfortunately, the server would run out of memory before…
In the following query, we list all lastname held by 2 or more employees. If you want a value to be unique, you should add a unique constraint to the…
To reset MySQL password, you need to have root access to the machine. After logging in as root, start by shutting down MySQL: Verify that all mysql processes have been…
The filesize limit is not defined in PhpMyAdmin. The limit is taken from php.ini file. To change this limit, you needed to edit your php.ini file: Change the following two…