7. A SQL Visualizer as claimed in claim 1 , which further comprises means for transforming a textual data definition language (DDL) command into a graphical diagram which represents said textual DDL command.
7. A SQL Visualizer as claimed in claim 1 , which further comprises means for transforming a textual data definition language (DDL) command into a graphical diagram which represents said textual DDL command. 9. A SQL Visualizer as claimed in claim 7 , wherein said graphical diagram which represents said textual DDL command is a graphical SQL Procedure and wherein said graphical diagram which represents said textual SQL procedure and said graphical diagram which represents said textual DDL command are both contained in the same graphical SQL Procedure.