KmusicdB is a music information manager for KDE3 and a PostgreSQL database. You can add your music collection and browse through it in a customizable viewer. KmusicdB includes CDDB support, reports and searching. This is not an MP3 manager.
Kuery for MySQL is a program developed on RedHat 7.1/KDE 2.11/QT2.3.0 (i386) C++ using KDevelop. Its purpose is to offer a GUI for MySQL administration.
The UI superficially resembles portions of Microsoft's Enterprise Manager for SQL Server.