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Management of Tables

The management of tables is divided into four tasks: defining, displaying, modifying and interactive editing of tables. The commands that define or modify a table will update its descriptor HISTORY. As the length of this descriptor is limited, if you are doing a lot of operations on the same table, you may get a descriptor overflow. In that case you can turn off the automatic addition of history_lines by adding an integer descriptor named HISTORY_UPDA to the table and setting it to 0.