Free SQL Editor for Oracle. Colored syntax, different colors on execution and errors. Multi-document program interface. Multi-threaded execution, possibility to stop execution. Execution SQL and PL/SQL blocks. Execution single and multiple SQL statement (scripts). Explain Plan feature. Reading DBMS_OUTPUT stream. Error positioning. Saving statement history for established connection. Saving history of all SQL statements in external file. Export results to xls/scv files.