Purpose
Deletes all graphical objects from a table. Cannot be used on linked tables. You can issue this statement from the MapBasic window in MapInfo Pro.
Syntax
Drop Map tabletable is the name of an open table.
Description
A Drop Map statement deletes all graphical objects (points, lines, regions, circles, etc.) from an open table, and modifies the table structure so that graphical objects may not be attached to the table.
After performing a Drop Map operation, you will no longer be able to display the corresponding table in a Map window; the Drop Map statement modifies the table's structure so that objects may no longer be associated with the table. (A subsequent Create Map statement will restore the table's ability to contain graphical objects; however, a Create Map statement will not restore the graphical objects which were discarded during a Drop Map operation.) The Drop Map statement does not affect the number of records in a table. You still can browse a table after performing Drop Map.
If you wish to delete all of the graphical objects from a table, but you intend to attach new graphical objects to the same table, use Delete Object instead of Drop Map.
The Drop Map statement does not work on linked tables.
Example
Open Table "clients"
Drop Map clients See Also:
Create Map statement, Create Table statement, Delete statement