One of the most interesting features of MySQL is the license. MySQL is an open source project. That is, the complete source code of MySQL is freely available. Since June 2000 (that is, since version 3.23.19) the GNU Public License (GPL) has been valid for MySQL. It is thus ensured that MySQL will continue to be freely available in the sense of the open source idea. (For commercial applications of MySQL there is a second, commercial license available in addition to GPL.
A compact is a signed written agreement that binds you to do what you've promised. It also refers to something small or closely grouped together, like the row of compact rental cars you see when you wanted a van. As a verb, compact means to compress or squeeze together, like how the garbage truck compacts your bags of trash. Compact, the adjective, describes something that is tightly packed together, like your luggage that is so compact it fits in the overhead compartment.
Interstate compact. In the United States of America, an interstate compact is an agreement between two or more states. Article I, Section 10 of the United States Constitution provides that No State shall, without the Consent of Congress... enter into any Agreement or Compact with another State.. Consent can be obtained in one of three ways.