How to use MongoDB queries to increase your DBA expertise

A group of application developers asked me for a quick guide on MongoDB queries Read more →

How to fix Postgres error remaining connection slots are reserved for non-replication superuser connections

An application owner reported connection issues due to Postgresql max connection Read more →

How to display current user in MongoDB

How to view your current user details on MongoDB Read more →

How to create an index on a MongoDB collection

A question about creating a MongoDB index for a collection Read more →

What is an immutable backup?

Does an immutable backup protect from Ransomware? Read more →

How to rename a MongoDB database

A developer asked me how to rename a MongoDB database Read more →

Learn about Containers

Learn all about Containers for database servers Read more →

How to move a MariaDB table to another database;

Move the MariaDB table or the whole database Read more →

What is the Apache Solr database

Ask the right questions about Apache Solr. Read more →

Easy fix for ERROR 1449 (HY000): The user specified as a definer does not exist

How to fix MariaDB error ERROR 1449 Read more →