iOS SQLite Sum and retrieve data - iphone

Question

I have a SQLite database that I am creating in my iOS application. A series of numbers are being stored in this database. I want to sum the entire column, and return the data to be displayed within the application.
Everything writing to the DB is working properly, but I am stuck trying to return the summed data. Any help would be greatly appreciated.
-(void) dataReturn: (NSString *) tableNamed{
NSString *myData = [NSString stringWithFormat:#"SELECT SUM(column1) AS data1 FROM myDB", tableNamed];
sqlite3_stmt *statement;
if(sqlite3_prepare_v2(db, [myData UTF8String], -1, &statement, nil) ==SQLITE_OK){
while (sqlite3_step(statement) == SQLITE_ROW){
int *field2 = (int *) sqlite3_column_int(statement, 1);
NSString *myString =[[NSString alloc] initWithFormat:#"%#", field2];
}
}
}

Answer 1

Hello Nathan making a call as
[self dataReturn:#"Bill"];
to function
-(void)dataReturn:(NSString *)tableName{
sqlite3 *database;
sqlite3_stmt *statement;
NSString *queryString = [NSString stringWithFormat:#"SELECT SUM(price) AS TOTAL FROM %#", tableName];
if(sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) {
if(sqlite3_prepare_v2(database, [queryString UTF8String], -1, &statement, nil) == SQLITE_OK){
while (sqlite3_step(statement) == SQLITE_ROW) {
int field1 = sqlite3_column_int(statement, 0);
NSLog(#"The sum is %d ", field1);
}
}
}
}
will Fetch you desired data. The schema for Table "Bill" is "CREATE TABLE Bill (price double,quantity INTEGER)". The result fetched will have columns indexed from "0" so we pass 0 for first column. Hope you can take some hint from it. Cheers!!
int field1 = sqlite3_column_int(statement, 0);

Answer 2

From the sqlite3_column_int docs:
The leftmost column of the result set has the index 0.
Additionally, that function returns an int, not an int*. Try:
int field2 = sqlite3_column_int(statement, 0);