rsim/oracle-enhanced — pull request #421 by gertfindel (2014-03-01 22:09:19+00:00)
Title: ChangeColumn type varchar->clob

Allows to workaround while changing text columns to clob
ORA-22858: invalid alteration of datatype http://ora-22858.ora-code.com/

* not ready to pull*
- * Tests missing *
- Update sentence should use the functions instead of raw SQL
- Temporary column might be longer than MAX_IDENTIFIER_LENGTH