phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the WWW. Currently it can create and drop databases, create/drop/alter tables, delete/edit/add fields, execute any SQL statement, manage keys on fields, create dumps of tables and databases, export/import CSV data and administrate one single database and multiple MySQL servers.
OrientDB is a new Open Source NoSQL DBMS born with the best features of all the others. It’s written in Java and it’s amazing fast: can store up to 200,000 records in 5 seconds on common hardware. Even if it’s Document based database the relationships are managed as in Graph Databases with direct connections among records. You can travere entire or part of trees and graphs of records in few milliseconds. Supports schema-less, schema-full and schema-mixed modes. Has a strong security profiling system based on user and roles and support the SQL between the query languages. Thank to the SQL layer it’s straightforward to use it for people skilled in Relational world.