CLEAR statement will be used only for clearing variables (internal table, workarea, variables etc) in the run time.... It does not have any impact on database tables...
You would have seen the code which might clear the "table work area".... It is a work area defined in the program using TABLES statement... same thing is applicable for NODES (interface workarea in LDB) also...... So, don't confuse yourself with this statement with DB table...
If you want to deal with the DB table, you need to use open SQL statements like INSERT, MODIFY, DELETE, UPDATE ...
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