I like to use 'COMMENT TABLE WITH' as a way to clarify the content and structure of a table, especially when it has been LOADed from several sources or in a specific way.
Eg. COMMENT TABLE Main WITH 'This is the Main table of data';
This works well, but what is the syntax for the comment string? I have just added a long comment over several lines, which did not cause a script error, but has not appeared with the table.