Is MySQL installed by default with OS X Leopard 10.5 or 10.6
If so where can I find the installation?
Solution 1:
no, it isn’t—only on server version:
http://developer.apple.com/internet/opensource/osdb.html
Solution 2:
It's not installed by default in Mac OS X 10.5. You can install it via a package manager like MacPorts, or from the package on the MySQL web site.