There was a need to work with the MS SQL database, but I did not want to install and understand the complex SQL Management Studio program, and this product turned out to be very easy to install and use. For more then 2 month i've used the tool haven't came across any issues.
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DBeaver - DBeaver - Universal Database Manager and SQL Client.
ProxySQL - ProxySQL: high-performance, GPL licensed MySQL proxy. It supports hundreds of thousands of concurrent connections and can be multiplexed to hundreds of servers.
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.
IntegrateDB.org - The integration database that doesn't smell.
DataGrip - Tool for SQL and databases