Buttons
=======

Clear button   : Clears the input text area.
Execute button : Executes the first SQL command in the text area.
Quit button    : Quits TimeDB.


Menu Item TimeDB
================

Open DB     : Opens an existing database.
Close DB    : Closes the database.
Create DB   : Creates a new TimeDB database (creates metadata).
Preferences : Set the preferences for TimeDB.

Exit        : Quits TimeDB.


Menu Item Transaction
=====================

Rollback : Performs a rollback operation which sets database 
           back to last commited state.
Commit   : Commits a database state.
           Note that some DBMS use autocommit as a default. This 
           commits the database after each modification statement
           automatically.


Menu Item File
==============

Execute File : Executes SQL commands stored in a file.
Test File    : Executes a demo file and compares the results 
               with the corresponding reference file.


Menu Item Help
==============

About   : About TimeDB.
Grammar : Grammar of supported temporal SQL.
Menu    : Opens this window. 
