* fcl-db: oracle connection
+ metadata retrieval: fix retrieving DATA_DEFAULT column with LONG datatype from ALL_TAB_COLUMNS: oracleconnection does not support the legacy LONG datatype.



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@27980 3ad0048d-3df7-0310-abae-a5850022a9f2