動態日期之間的日期範圍在mysql vb.net

Question

嗨Stackoverflow管理員和所有成員，我有問題，當我按日期動態列datagridview。

我有一些表酒店預訂：

CREATE TABLE IF NOT EXISTS `tp_tblmsroom` (
    `KdRoom` varchar(10) COLLATE latin1_general_ci NOT NULL DEFAULT '', 
    `NmRoom` varchar(100) COLLATE latin1_general_ci NOT NULL, 
    `KdRoomType` varchar(10) COLLATE latin1_general_ci NOT NULL 
PRIMARY KEY (`KdRoom`) 
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; 

INSERT INTO `tp_tblmsroom` (`KdRoom`, `NmRoom`, `KdRoomType`) VALUES 
    ('1001', 'Lantai 1 No. 001', 'SNG-SUP'), 
    ('1002', 'Lantai 1 No. 002', 'SNG-SUP'), 
    ('2001', 'Lantai 2 No. 001', 'SNG-DLX'), 
    ('2002', 'Lantai 2 No. 002', 'SNG-DLX'), 
    ('3001', 'Lantai 3 No. 001', 'TWN-JRS'), 
    ('3002', 'Lantai 3 No. 002', 'TWN-JRS'), 
    ('3003', 'Lantai 3 No. 003', 'TWN-JRS'), 
    ('4001', 'Lantai 4 No. 001', 'SNG-STE'), 
    ('5001', 'Lantai 5 No. 001', 'TWN-PRE'), 
    ('6001', 'Lantai 6 No. 001', 'SNG-STD'), 
    ('6002', 'Lantai 6 No. 002', 'SNG-STD'), 
    ('6003', 'Lantai 6 No. 003', 'SNG-STD'), 
    ('6004', 'Lantai 6 No. 004', 'SNG-STD'), 
    ('6005', 'Lantai 6 No. 005', 'SNG-STD'), 
    ('6006', 'Lantai 6 No. 006', 'TWN-STD'), 
    ('6007', 'Lantai 6 No. 007', 'TWN-STD'), 
    ('6008', 'Lantai 6 No. 008', 'TWN-STD'), 
    ('6009', 'Lantai 6 No. 009', 'TWN-STD'); 

CREATE TABLE IF NOT EXISTS `tp_tblstroomstatus` (
    `KdRoom` varchar(10) COLLATE latin1_general_ci NOT NULL, 
    `DateCheck` datetime NOT NULL, 
    `KdRoomStatus` varchar(10) COLLATE latin1_general_ci NOT NULL, 
    `KdTransaksi` varchar(21) COLLATE latin1_general_ci NOT NULL 
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; 

INSERT INTO `tp_tblstroomstatus` (`KdRoom`, `DateCheck`, `KdRoomStatus`) VALUES 
    ('6006', '2016-11-22 14:00:00', 'BO'), 
    ('6006', '2016-11-23 14:00:00', 'BO'), 
    ('6006', '2016-11-23 12:00:00', 'BO'), 
    ('6006', '2016-11-24 12:00:00', 'BO'), 
    ('6007', '2016-11-22 14:00:00', 'BO'), 
    ('6007', '2016-11-23 14:00:00', 'BO'), 
    ('6007', '2016-11-24 14:00:00', 'BO'), 
    ('6007', '2016-11-23 12:00:00', 'BO'), 
    ('6007', '2016-11-24 12:00:00', 'BO'), 
    ('6007', '2016-11-25 12:00:00', 'BO'); 

我試圖創建一個查詢，以使日期的動態，當我在VB.NET 2的DateTimePicker和綁定之間打電話datagridview的。

SELECT `tp_tblmsroom`.`KdRoom`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-20 14:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-20 14:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-21 12:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-21 12:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-21 14:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-21 14:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-22 12:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-22 12:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-22 14:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-22 14:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-23 12:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-23 12:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-23 14:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-23 14:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-24 12:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-24 12:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-24 14:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-24 14:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-25 12:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-25 12:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-25 14:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-25 14:00:00`, 
    MAX(IF(`tp_tblstroomstatus`.`DateCheck` = '2016-11-26 12:00:00', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS `2016-11-26 12:00:00` 
FROM `tp_tblstroomstatus` 
    RIGHT OUTER JOIN `tp_tblmsroom` ON (`tp_tblstroomstatus`.`KdRoom` = `tp_tblmsroom`.`KdRoom`) 
GROUP BY `tp_tblmsroom`.`KdRoom` 

然後我試圖將其轉換爲：

SET @sql = NULL; 
SELECT GROUP_CONCAT 
    (DISTINCT CONCAT(
    'MAX(IF(`tp_tblstroomstatus`.`DateCheck` = ''', 
    `tp_tblstroomstatus`.`DateCheck`, 
    ''', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS ', 
    `tp_tblstroomstatus`.`DateCheck` 
) 
) INTO @sql 
FROM `tp_tblstroomstatus` 
    RIGHT OUTER JOIN `tp_tblmsroom` ON (`tp_tblstroomstatus`.`KdRoom` = `tp_tblmsroom`.`KdRoom`); 
SET @sql = CONCAT('SELECT `tp_tblmsroom`.`KdRoom`, ', @sql, ' FROM `tp_tblstroomstatus` 
RIGHT OUTER JOIN `tp_tblmsroom` ON (`tp_tblstroomstatus`.`KdRoom` = `tp_tblmsroom`.`KdRoom`) GROUP BY `tp_tblmsroom`.`KdRoom`'); 

但當嘗試運行MySQL的代碼，我得到這個錯誤。

you have an error in your SQL syntax....'SELECT GROUP_CONCAT(DISTICT... 

有關更多的信息，我嘗試循環使用datetimepicker之間的datagridview生成新的列。這個我的VB.NET代碼：

Dim pDateCI As Date = dtpStartRoomRack.Text 
Dim pDateCO As Date = dtpEndRoomRack.Text 
Dim DayCount As Integer = DateDiff(DateInterval.Day, pDateCI, pDateCO) 
    For i = 0 To DayCount - 1 
    .Columns.Add(i, (Format(pDateCI, "yyyy/MM/dd") & " " & Format(pTimeCI, "HH:mm:ss"))) 'format pDateCI date use for call mysql data in checkdate column like 2016-11-21 14:00:00' 
    .Columns.Add(i, (Format(pDateCI.AddDays(1), "yyyy/MM/dd") & " " & Format(pTimeCO, "HH:mm:ss"))) 'format pDateCO date use for call mysql data in checkdate column like 2016-11-22 12:00:00' 
    pDateCI = pDateCI.AddDays(1) 
    Next 

我該如何解決我的問題？在此先感謝:)

Answer 1

溫迪，我要在這裏猜測。我認爲你的查詢很好，你有一個休息時間，你不應該有一個。看下面的第二行，並將它們放在一行上，然後嘗試運行查詢。

SET @sql = NULL; 
SELECT GROUP_CONCAT(DISTINCT CONCAT(
    'MAX(IF(`tp_tblstroomstatus`.`DateCheck` = ''', 
    `tp_tblstroomstatus`.`DateCheck`, 
    ''', `tp_tblstroomstatus`.`KdRoomStatus`, '')) AS ', 
    `tp_tblstroomstatus`.`DateCheck` 
) 
) INTO @sql 
FROM `tp_tblstroomstatus` 
    RIGHT OUTER JOIN `tp_tblmsroom` ON (`tp_tblstroomstatus`.`KdRoom` = `tp_tblmsroom`.`KdRoom`); 
SET @sql = CONCAT('SELECT `tp_tblmsroom`.`KdRoom`, ', @sql, ' FROM `tp_tblstroomstatus` 
RIGHT OUTER JOIN `tp_tblmsroom` ON (`tp_tblstroomstatus`.`KdRoom` = `tp_tblmsroom`.`KdRoom`) GROUP BY `tp_tblmsroom`.`KdRoom`');