Oracle SQL Developer - now in web! | Official Pythian®® Blog
Connect by root -> couples at the same level - Oracle Forums
Mastering Oracle SQL (Paperback) | Book Passage
How to get all dependent child and there level to a top most parent node using Oracle SQL? - Oracle Forums
How to] test | Minerva
sql - Oracle hierarchical sum (distance from leaf to root) - Stack Overflow
Hierarchical Queries in Oracle | o7planning.org
Hierarchical queries on Oracle database - Just Know IT Just Do IT
Oracle 11gR2 - alternative for CONNECT_BY_ISLEAF function for Recursive Subquery Factoring (dedicated to Anton) - AMIS, Data Driven Blog - Oracle & Microsoft Azure
How to master the CONNECT BY clause in Oracle to analyze hierarchical data | by Harinder | Quick Code | Medium