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Archived:Complete SQL database guide for PySymbian

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Archived.pngAquivado: Este artigo foi arquivado, pois o conteúdo não é mais considerado relevante para se criar soluções comerciais atuais. Se você achar que este artigo ainda é importante, inclua o template {{ForArchiveReview|escreva a sua justificativa}}.

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Article Metadata
Tested with
Devices(s): E71
Platform(s): S60 2nd Edition, S60 3rd Edition
Keywords: e32db, e32dbm
Created: the86hitman (13 Aug 2009)
Last edited: hamishwillee (08 May 2013)


There are two database interfaces in PySymbian, e32dbm and e32db.

e32dbm is required for dictionary functions only (code example at Archived:Database in PySymbian). Whereas, e32db allows further SQL processing as will be shown here.

Source code

import e32db
#initiate database objects
#open database, if not exist, then create the file"e:\\data\\python\\test.db","c")
#to create table which contains three fields
db.execute(u"create table table1 (id count,forename varchar, surname varchar)")
# for value types see
#to insert data
db.execute(u"insert into table values(1,'joe','bloggs')")
#notice, the 1 is required to increment the key!
#to fetch the whole dataset
dbv.prepare(db,u"select * from table1")
for i in range(1,dbv.count_line()+1): #1 to number of rows
dbv.get_line() #grabs data from the currently selected row
for i in range(1,self.dbv.col_count()+1):
print dbv.col(i) #prints each column data
dbv.next_line() #selects the next row
  • Use db.execute(unicode(sql statement)) to perform insert/update/delete
  • Use dbv.prepare(db,unicode(sql statement)) to fetch data

This is only a framework for you to use. There are many ready-to-use classes available, if you prefer, but its less erroneous if you understand the code yourself.

If you need more help, you can post to this thread.

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This page was last modified on 8 May 2013, at 05:54.
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