Please note that as of October 24, 2014, the Nokia Developer Wiki will no longer be accepting user contributions, including new entries, edits and comments, as we begin transitioning to our new home, in the Windows Phone Development Wiki. We plan to move over the majority of the existing entries. Thanks for all your past and future contributions.
Archived:Complete SQL database guide for PySymbian
There are two database interfaces in PyS60, e32dbm and e32db.
e32dbm is required for dictionary functions only (code example at Database in PyS60). Whereas, e32db allows further SQL processing as will be shown here.
#initiate database objects
#open database, if not exist, then create the file
#to create table which contains three fields
db.execute(u"create table table1 (id count,forename varchar, surname varchar)")
# for value types see http://pys60.garage.maemo.org/doc/s60/node100.html
#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.