If you are looking to add a new database system for your company, you will probably be using either MySQL or MS SQL Server. They are the most common relational database management systems. However, there are some significant differences. The most significant difference is this: 1. MySQL is open-source 2. MS SQL Server is developed by Microsoft.
In a previous article: MySQL Remote DBA Consultant helped the client to scale up, We discussed a situation where a client had a MySQL server that had 1,100 databases and was using it with a SaaS application. We do not want you to think that having separate databases per client is always a bad idea. There are some real advantages with using separate databases for each client, so we want to go over those also so that you can determine the best way to design your database and structure for your SaaS app.
With one of our clients that we provide Remote DBA services, we recently encountered a situation where one of the frequently running stored procedures suddenly started consuming 100% of the CPU on the server.