更新查询时ios数据库锁定错误

Question

我正在尝试更新SQLite表但遇到以下错误。以下是我的代码。

我已按照早期线程中的建议关闭了数据库连接，但收到了同样的错误。任何帮助将不胜感激

-(bool)updateRecord:(NSString *)strRowID :(NSString *)strFilePath :(NSString *)strStatus
{
    sqlite3 *objsqlite3temp;
    const char *dbpath = [DATABASE_PATH UTF8String];
    if (sqlite3_open(dbpath, &objsqlite3temp) == SQLITE_OK)
    {
        NSString *updatetSQL = [NSString stringWithFormat:@"UPDATE files set status='%@', path='%@' WHERE id = %@", strStatus,strFilePath,strRowID];
        const char *insert_stmt = [updatetSQL UTF8String];

        sqlite3_stmt *selectstmt;
        if(sqlite3_prepare_v2(objsqlite3temp, insert_stmt, -1, &selectstmt, NULL) == SQLITE_OK)
        {
            while(sqlite3_step(selectstmt) == SQLITE_ROW)
            {

                //  NSLog(@"Entered and return");
             sqlite3_close(objsqlite3temp);
            }
        }
        else
        {
            NSLog(@"Error message %s",sqlite3_errmsg(objsqlite3temp));
        }

        //ADD THIS LINE TO YOUR CODE
        sqlite3_finalize(selectstmt);
    }
    else
    {
        sqlite3_close(objsqlite3temp); //Even though the open call failed, close the database connection to release all the memory.
    }
    return YES;
}