已创建Sqlite 3数据库，但在ios中未触发插入查询

当应用程序第一次启动时，上述方法调用并触发数据库查询，并创建新的数据库和表

数据库值未插入sqlite中的数据库 数据库的最新值未显示在tableview中 上述插入数据库的方法

以及从数据库中获取数据的belove方法

-(void)defaultValueAddingIntoDatabase
{
dirPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
documentDir = [dirPath objectAtIndex:0];
databasePath=[[NSString alloc]initWithString:[documentDir stringByAppendingPathComponent:@"drumloops.db"]];
//    NSLog(@"datbase path :%@",databasePath);
filemanager= [NSFileManager defaultManager];
if([filemanager fileExistsAtPath:databasePath] == YES)
{
    const char *dbPath=[databasePath UTF8String];
    if(sqlite3_open(dbPath,&_myDatabase)==SQLITE_OK)
    {
        NSLog(@"DATABASE IS OPEN");
    }
}
const char *dbpath = [databasePath UTF8String];
if (sqlite3_open(dbpath, &_myDatabase) == SQLITE_OK)
{
    char *errMsg;
    const char *sql_stmt="CREATE TABLE IF NOT EXISTS drum(ID INTEGER PRIMARY KEY AUTOINCREMENT,name TEXT,speed TEXT,track TEXT,audio TEXT)";
    if(sqlite3_exec(_myDatabase, sql_stmt, NULL, NULL, &errMsg)!= SQLITE_OK)
    {
 //            NSLog(@"drum TABLE id failed to create");
    }
    else
    {
        NSLog(@"drum table is created");
    }
}
sqlite3_stmt *statement;
if(sqlite3_open(dbpath,&_myDatabase)==SQLITE_OK)
{
    NSString *insertQuery;
        insertQuery=[NSString stringWithFormat:@"Insert into drum (name,speed,track,audio) SELECT 'JAZZ','1','1','JAZZ1' UNION SELECT 'JAZZ','1','2','JAZZ2' UNION SELECT 'JAZZ','1','3','JAZZ3' UNION SELECT 'JAZZ','1','4','JAZZ4' UNION SELECT 'JAZZ','1','5','JAZZ5' UNION SELECT 'JAZZ','1','6','JAZZ6' UNION SELECT 'JAZZ','1','7','JAZZ7' UNION SELECT 'JAZZ','1','8','JAZZ8' UNION SELECT 'JAZZ','1','9','JAZZ9' UNION SELECT 'JAZZ','1','10','JAZZ10' UNION SELECT 'JAZZ','1','11','JAZZ11' UNION SELECT 'JAZZ','1','12','JAZZ12' UNION SELECT 'JAZZ','1','13','JAZZ13' UNION SELECT 'JAZZ','1','14','JAZZ14' UNION SELECT 'ROCK','1','1','ROCK1' UNION SELECT 'ROCK','1','2','ROCK2' UNION SELECT 'ROCK','1','3','ROCK3' UNION SELECT 'ROCK','1','4','ROCK4' UNION SELECT 'ROCK','1','5','ROCK5' UNION SELECT 'ROCK','1','6','ROCK6' UNION SELECT 'ROCK','1','7','ROCK7' UNION SELECT 'ROCK','1','8','ROCK8' UNION SELECT 'ROCK','1','9','ROCK9' UNION SELECT 'ROCK','1','10','ROCK10' UNION SELECT 'ROCK','1','11','ROCK11' UNION SELECT 'ROCK','1','12','ROCK12' UNION SELECT 'ROCK','1','13','ROCK13' UNION SELECT 'ROCK','1','14','ROCK14' UNION SELECT 'ROCK','1','15','ROCK15' UNION SELECT 'ROCK','1','16','ROCK16' UNION SELECT 'ROCK','1','17','ROCK17' UNION SELECT 'ROCK','1','18','ROCK18' UNION SELECT 'ROCK','1','19','ROCK19' UNION SELECT 'ROCK','1','20','ROCK20' UNION SELECT 'ROCK','1','21','ROCK21' UNION SELECT 'ROCK','1','22','ROCK22' UNION SELECT 'POP','1','1','POP1' UNION SELECT 'POP','1','2','POP2' UNION SELECT 'POP','1','3','POP3' UNION SELECT 'POP','1','4','POP4' UNION SELECT 'POP','1','5','POP5' UNION SELECT 'POP','1','6','POP6' UNION SELECT 'POP','1','7','POP7' UNION SELECT 'POP','1','8','POP8' UNION SELECT 'POP','1','9','POP9' UNION SELECT 'POP','1','10','POP10' UNION SELECT 'POP','1','11','POP11' UNION SELECT 'POP','1','12','POP12' UNION SELECT 'POP','1','13','POP13' UNION SELECT 'POP','1','14','POP14' UNION SELECT 'POP','1','15','POP15' UNION SELECT 'POP','1','16','POP16' UNION SELECT 'POP','1','17','POP17' UNION SELECT 'POP','1','18','POP18' UNION SELECT 'HIPHOP','1','1','HIPHOP1' UNION SELECT 'HIPHOP','1','2','HIPHOP2' UNION SELECT 'HIPHOP','1','3','HIPHOP3' UNION SELECT 'HIPHOP','1','4','HIPHOP4' UNION SELECT 'HIPHOP','1','5','HIPHOP5' UNION SELECT 'HIPHOP','1','6','HIPHOP6' UNION SELECT 'HIPHOP','1','7','HIPHOP7' UNION SELECT 'HIPHOP','1','8','HIPHOP8' UNION SELECT 'HIPHOP','1','9','HIPHOP9' UNION SELECT 'HIPHOP','1','10','HIPHOP10' UNION SELECT 'HIPHOP','1','11','HIPHOP11' UNION SELECT 'HIPHOP','1','12','HIPHOP12' UNION SELECT 'HIPHOP','1','13','HIPHOP13' UNION SELECT 'HIPHOP','1','14','HIPHOP14' UNION SELECT 'HIPHOP','1','15','HIPHOP15' UNION SELECT 'HIPHOP','1','16','HIPHOP16' UNION SELECT 'HIPHOP','1','17','HIPHOP17' UNION SELECT 'HIPHOP','1','18','HIPHOP18'"];




    const char *insert_stmt=[insertQuery UTF8String];
    BOOL sucess=sqlite3_prepare_v2(_myDatabase, insert_stmt, -1, &statement, NULL);
    if(sucess==SQLITE_OK)
    {
//            NSLog(@"prepared");
    }
    if(sqlite3_step(statement)==SQLITE_DONE)
    {
//            NSLog(@"inserted succesfully");
        [[NSUserDefaults standardUserDefaults] setInteger:1 forKey:@"HasLaunchedOnce"]; //first time app set Value Yes than always be YES
        [[NSUserDefaults standardUserDefaults] synchronize];
    }
    else
    {
        NSLog(@"not insertd into drum");
        UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"Error !" message:@"Relaunch application" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
        [alert show];
    }
    sqlite3_finalize(statement);
    sqlite3_close(_myDatabase);
}
}

上述方法无法获取该值

---

谢谢…

两个字：错误报告。检测错误条件并报告它们（请参见sqlite_errmsg（））将帮助您跟踪代码中的错误。您可以通过编写更多的错误报告代码来节省时间。谢谢，我收到了我的错误。。。

 dirPath=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
documentDir=dirPath[0];
//    NSLog(@"doc dir path is %@",documentDir);
databasePath=[[NSString alloc]initWithString:[documentDir stringByAppendingPathComponent:@"drumloops.db"]];
//    NSLog(@"datbase path :%@",databasePath);
filemanager= [NSFileManager defaultManager];

const char *dbpath = [databasePath UTF8String];
sqlite3_stmt    *statement;
if (sqlite3_open(dbpath, &_myDatabase) == SQLITE_OK)
{
 //        NSString *querySQL = [NSString stringWithFormat:@"SELECT audio FROM drum where name='%@' ",selectedButtonName];
    NSString *querySQL = [NSString stringWithFormat:@"SELECT audio FROM drum WHERE name='%@' AND speed='%lu'",selectedButtonName, (unsigned long)selectedSpeed];
    const char *query_stmt = [querySQL UTF8String];
    if (sqlite3_prepare_v2(_myDatabase, query_stmt, -1, &statement, NULL) == SQLITE_OK)
    {
        while (sqlite3_step(statement) == SQLITE_ROW)
        {
            NSString *audio = [[NSString alloc] initWithUTF8String: (const char *) sqlite3_column_text(statement, 0)];
 //                NSLog(@"audio %@",audio);
            [self.fetchAudio addObject:audio];
        }
        sqlite3_finalize(statement);
        sqlite3_close(_myDatabase);
 //            NSLog(@"speed :%@",fetchAudio);

        sortedAudioArray = [fetchAudio sortedArrayUsingComparator:^(id a, id b) {
            return [a compare:b options:NSNumericSearch];
        }];
//            NSLog(@"sortedAudioArray :%@",sortedAudioArray);
      }
}