FalsinSoft

Since Yum Extender is no more maintained in CentOS repository there are a lot of posts asking for this problem and, as usual, a lot of partial or incomplete replies. Just to avoid wasting time follow the few command lines to use for install this tool.

Tree structure are very commonly used by all the application who need to manage a large quantity of data. However once have in memory the tree data the application need a way to save them for future use. SQL database can be a good solution but, in this case, we need a way to store data in efficient mode. This post will propose a model called Nested Set.