NyQL
· A library to write common relational database queries using a DSL.
This is great, if you want to write a query once and execute in any relational database many times.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window nyql-parent-2.0-rc4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.