This function fetch a singe row from a table. See below format
App::CategorySet(NAME)->find(CONDITION);
If we use just find() then it return a singe entry of table following default insert sequence. Also we can pass condition of WHERE clause as parameter of the function.
For example:
$data = App::CategorySet('blog-cat')->find();
$data = App::CategorySet('blog-cat')->find("1 ORDER BY id ASC");
// Return value
/*
Array
(
[id] => 1
[fkey] => 0
[adminref] => 1
[parentid] => 0
[image] => app.jpg
[title] => Application
[description] => Application is one of the easiest solutions to incorporate new features
[type] => blog-cat
[generic] => 10
[entrydate] => 2012-12-13 10:47:18
[lastmodified] => 2012-12-13 10:47:18
)
*/