SQuirreL SQL Client 3.4.0 is released and it seems to be quite popular

SQuirreL SQL Client 3.4.0 is released with many Enhancements and Bug Fixes
It is a database-independent db management and query tool: as long as
there is a JDBC driver for it (eg like Jaybird), you can use it to query
your database, etc. I guess that is the primary reason it is so popular.
And it the top picks for sourceforge Top Growth Projects near the Pascal Compiler