Sqlite data not getting fetching - iphone

Question

I am trying fetch the value from data base But it is not getting
I am trying this code but didn't get the value ,When i use the Break point on the program
I am having Longitude,Latitude his data type is double in data base
if(sqlite3_open([dbPath UTF8String], &database) == SQLITE_OK)
{
NSString *sqlStr = [NSString stringWithFormat:#"select Longitude,Latitude from Location"];
const char *sqlStatement = [sqlStr UTF8String];
sqlite3_stmt *compiledStatement;
if(sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatement, NULL) == SQLITE_OK) {
locations = [NSMutableArray array];
while(sqlite3_step(compiledStatement) == SQLITE_ROW) {
int i = sqlite3_step(compiledStatement);
NSLog(#"%i",i); **//over here i am getting the 101 value in console** And my pointer getting out from here
NSString *dLongitude = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 3)];
NSString *dLatitude = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 4)];
[locations addObject:[NSString stringWithFormat:#"%# ,%#",dLongitude,dLatitude]];
NSLog(#"%#",locations);
}
result = [locations componentsJoinedByString:#" "]; // same as `fake_location`
// Get file path here
NSError *error;
if ( [result writeToFile:dbPath atomically:YES encoding:NSUTF8StringEncoding error:&error] ) {
NSLog(#"%#", [error localizedDescription]);
}
}
// Release the compiled statement from memory
sqlite3_finalize(compiledStatement);

Answer 1

while(sqlite3_step(compiledStatement) == SQLITE_ROW) {
int i = sqlite3_step(compiledStatement);
NSLog(#"%i",i); **//over here i am getting the 101 value in console** And my pointer getting out from here
double longitude = sqlite3_column_double(compiledStatement, 3);
double latitude = sqlite3_column_double(compiledStatement, 4);
NSString *coords = [[[NSString alloc] initWithFormat:#"%f,%f",longitude,latitude] autorelease];
[locations addObject:coords];
NSLog(#"%#",locations);
}

Answer 2

Change the code to the following :
if(sqlite3_open([dbPath UTF8String], &database) == SQLITE_OK)
{
NSString *sqlStr = [NSString stringWithFormat:#"select Longitude,Latitude from UserJourneyLocation"];
const char *sqlStatement = [sqlStr UTF8String];
sqlite3_stmt *compiledStatement;
if(sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatement, NULL) == SQLITE_OK) {
locations = [NSMutableArray array];
while(sqlite3_step(compiledStatement) == SQLITE_ROW) {
int i = sqlite3_step(compiledStatement);
// NSLog(#"%i",i); / comment this line or use NSLog(#"%d",i);
// Make sure your longitude is double in database. else change the fetching value declaration
// We use 0 for dLongitude instead of 3 because in the select statement, it is the first value to be fetched irrespective of your table structure
// and same for dLatitude.
double dLongitude = sqlite3_column_double(compiledStatement, 0);
double dLatitude = sqlite3_column_double(compiledStatement, 1);
[locations addObject:[NSString stringWithFormat:#"%d ,%d",dLongitude,dLatitude]];
NSLog(#"%#",locations);
}
result = [locations componentsJoinedByString:#" "]; // same as `fake_location`
// Get file path here
NSError *error;
if ( [result writeToFile:dbPath atomically:YES encoding:NSUTF8StringEncoding error:&error] ) {
NSLog(#"%#", [error localizedDescription]);
}
}
// Release the compiled statement from memory
sqlite3_finalize(compiledStatement);