question: public synchronized void copyFileData ( JDBCSequentialFile fileFrom , JDBCSequentialFile fileTo ) throws SQLException { try { connection . setAutoCommit ( false ) ; copyFileRecord . setInt ( 1 , fileFrom . getId ( ) ) ; copyFileRecord . setInt ( 2 , fileTo . getId ( ) ) ; copyFileRecord . executeUpdate ( ) ; connection . commit ( ) ; } catch ( SQLException e ) { connection . rollback ( ) ; throw e ; } }
target:  Copy the data content of FileFrom to FileTo