iphone - Problem with inserting data into a table

sqlite3 *database;
sqlite3_stmt *statement;
NSString *dPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"UserData.sqlite"];

const char *dbpath = [dPath UTF8String];
// NSLog(@"%@",dbpath);
//UserArray = [[NSMutableArray alloc]init];

if(sqlite3_open(dbpath, &database) == SQLITE_OK)
{

    NSString *insertSQL = [NSString stringWithFormat: @"INSERT INTO User (UserName,FullName,Email,PhoneNo) VALUES (\"%@\", \"%@\", \"%@\" ,\"%@\")",txtUserName.text,txtFullName.text ,txtEmail.text , txtPhoneNo.text];

    const char *insert_stmt = [insertSQL UTF8String];


    sqlite3_prepare_v2(database, insert_stmt, -1, &statement, NULL);

    if(sqlite3_step(statement)==SQLITE_DONE) 
    {
        txtUserName.text=@"";
        txtFullName.text=@"";
        txtEmail.text=@"";
        txtPhoneNo.text=@"";
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Add Record" message:@"Contact Added" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];    

        [alert show];
        [alert release];
        alert=nil;

    }
    else 
    {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"record" message:@"record not created" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];   
        [alert show];
        [alert release];

        alert=nil;
    }


    // Release the compiled statement from memory
    sqlite3_finalize(statement);

    sqlite3_close(database);
}

->> i am trying to insert data into table. the code execute properly but the record is not added into the table. so please help me or this problem..thank's for your response.

Answer

try executing commit, so setting the db to autocommit

// COMMIT
  const char *sql2 = "COMMIT TRANSACTION";
  sqlite3_stmt *commit_statement;
  if (sqlite3_prepare_v2(database, sql2, -1, &commit_statement, NULL) != SQLITE_OK) {
    NSAssert1(0, @"Error Message: '%s'.", sqlite3_errmsg(database));

  }
  success = sqlite3_step(commit_statement);
  if (success != SQLITE_DONE) {
    NSAssert1(0, @"Error Message: '%s'.", sqlite3_errmsg(database));
  }
}