usql is described as 'A universal command-line interface for PostgreSQL, MySQL, Oracle Database, SQLite3, Microsoft SQL Server, and many other databases including NoSQL and non-relational databases!' and is an app in the OS & Utilities category. There are four alternatives to usql for a variety of platforms, including Linux, Mac, Windows, MariaDB and MySQL Community Edition. The best alternative is HeidiSQL, which is both free and Open Source. Other great apps like usql are Querious (Paid), mycli (Free, Open Source) and Pgcli (Free, Open Source).
HeidiSQL is a useful tool designed for web developers using the popular MySQL server, Microsoft SQL databases and PostgreSQL. It enables you to browse and edit data, create and edit tables, views, procedures, triggers and scheduled events.
Querious is a MySQL database management application written from the ground up for Mac OS X. Unlike mindless Mac OS X ports of applications originally made for Windows or Linux, Querious works the way you'd naturally expect it to as a Mac OS X app.