symbian mobile phone database operation, there is documented.

DBMS\S60_Platform_DBMS_Example_v2_0_en.zip
....\S60_Platform_Using_DBMS_APIs_v2_0_en.pdf
....\.............DBMS_Example_v2_0\DBMS\Licence.txt
....\..............................\....\ReleaseNotes.htm
....\..............................\....\ReleaseNotes.txt
....\..............................\....\src\DBMS.cpp
....\..............................\....\...\DBMSApplication.cpp
....\..............................\....\...\DBMSAppui.cpp
....\..............................\....\...\DBMSAppview.cpp
....\..............................\....\...\DBMSDocument.cpp
....\..............................\....\...\DBMSEditorView.cpp
....\..............................\....\...\DBMSEngine.cpp
....\..............................\....\...\DBMSListboxView.cpp
....\..............................\....\.is\DBMS_S60_1st_ed.pkg
....\..............................\....\...\DBMS_S60_1st_ed.SIS
....\..............................\....\...\DBMS_S60_2nd_ed.pkg
....\..............................\....\...\DBMS_S60_2nd_ed.SIS
....\..............................\....\...\DBMS_S60_3rd_ed.pkg
....\..............................\....\...\DBMS_S60_3rd_ed.SIS
....\..............................\....\inc\DBMS.hrh
....\..............................\....\...\DBMSApplication.h
....\..............................\....\...\DBMSAppui.h
....\..............................\....\...\DBMSAppView.h
....\..............................\....\...\DBMSDocument.h
....\..............................\....\...\DBMSEditorView.h
....\..............................\....\...\DBMSEngine.h
....\..............................\....\...\DBMSListboxView.h
....\..............................\....\group\ABLD.BAT
....\..............................\....\.....\bld.inf
....\..............................\....\.....\DBMS.mmp
....\..............................\....\.....\DBMS_S60_3rd_ed.mmp
....\..............................\....\data\DBMS.rss
....\..............................\....\....\DBMS_loc.rss
....\..............................\....\....\DBMS_reg.rss
....\..............................\....\aif\context_pane_icon.bmp
....\..............................\....\...\context_pane_icon_mask.bmp
....\..............................\....\...\DBMSAif.rss
....\..............................\....\...\list_icon.bmp
....\..............................\....\...\list_icon_mask.bmp
....\..............................\....\...\Thumbs.db
....\..............................\....\src
....\..............................\....\sis
....\..............................\....\inc
....\..............................\....\group
....\..............................\....\data
....\..............................\....\aif
....\..............................\DBMS
....\S60_Platform_DBMS_Example_v2_0
DBMS

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