ImportOverwrite is used to determine whether to replace the existing CDD definitions.
IMPORTOVERWRITE=0
If ImportOverwrite = 0, existing table will not be overwritten when re-importing.
If ImportOverwrite = 1, overwrite existing tables when re-importing.
If ImportOverwrite = 2, preserve Column Long Names.
Default = 1.
Environment: Client, Windows, Unix
Configuration Manager: CONNX Settings; Current Key = CONNXCDD\OPTIONS; Key Value/Value Name = ImportOverwrite
Unix Registry Setting: CONNXCDD.OPTIONS.IMPORTOVERWRITE