class HDbFileIo: public TObject

 Constructor creates the Oracle connection class, but does not open a connection

 Destructor closes the Oracle connection and a file not yet closed

 Opens an Oracle connection (e.g.with:  "hades","db-hades")

 Closes the Oracle connection
 Asks for committing all not yet saved transactions

 Closes an open file and opens the new file
 Possible I/O modes are "in", "out", "app"

 Closes the file

 Returns kTRUE in case the file is open

 Returns kTRUE in case the file is writable

 Sets the name of the Oracle table.
 Checks if a table with this name exists already.
 Returns a pointer to a table.
 For an existing table this form contains all columns of this table. If the
 table does not exist the list of columns is empty. This table can be used
 to define the columns for an insert/update.
 (You can call the HDbTable::clear() function to remove all columns from the
 list. Then all or only some columns can be added again in the order needed
 for the file I/O.)

 Sets the delimiter beween columns (default value: " ")

 Sets a date mask in Oracle

 Sets the search date in Oracle used to select data from views which
 require a date specified before retrieving results.
 The default value is the actual time on the server.

 Sets the run in Oracle used to select data from views which require
 a run specified before retrieving results.

 Returns a pointer to a temporary table created inside the current
 Oracle session

 Shows all temporary tables created inside the current Oracle session

 Drops a temporary table created inside the current Oracle session.
 Each Drop must be confirmed.

 Drops all temporary tables created inside the current Oracle session.
 Each Drop must be confirmed.

 Commits Oracle transactions

 Rolls back Oracle transactions

 Shows the table definition of the existing table

 Deletes the actual table objects curTable and refTable

 Shows the actual parameter settings for the I/O

 Reads a file starting at line nLineStart( default 1) and stopping after
 line nLineEnd (default 999999) or EOF and inserts the data into an Oracle
 table. Inserts into an existing table must be confirmed.
 When the name of the table was not set before, a default table name is
 generated from the filename. The creation of a temporary table must be
 confirmed.
 The file is not closed automatically.

 Inserts one row in the actual table
 colNames:  comma separated list of columns;
            use "*" for an insert with values for all columns
 colValues: comma separated list of values for the columns

 Updates one or more rows in a temporary table
 setVal   : SET part of an update statement (col1=val1, col2=val2, ...)
 condition: Condition for the columns to be updated
            WARNING: An empty condition will update all columns!

 Writes the data from an Oracle table into a file

 Prints the data from an Oracle table on the screen

 Opens a file for input and generates the default table name

 Opens a file for output

 Sets the default table name and table definition if necessary. Checks if
 the table exists and creates it otherwise. A newly created table is added
 in the list of temporary tables.

 Adds a temporary table to the list of temporary tables

 Removes a table from the list of temporary tables and deletes it.
 Deletes also the actual tables when they have identical names.

 Gets the column values from a line read from file

 Writes the table content to a file or to stdout

 Returns the actual date and time

 Calls commit() when flag autoCommit is kTRUE

 Ask to confirm uncommitted transactions