group_idgroup_desc 1 2 3 4 5 6 7 8 teampage_idgroup_idteampage_nameteampage_positionteampage_parent 1 1 1 0 2 0 category - 2 children 2 0 3 2 3 2 4 3 4 2 5 0 category2 - 2 children 5 0 6 4 6 5 7 5 7 5 8 6 8 0