用不同的值更新多行中的同一列

Question

我想每天運行一次cron job以更新dadmin_reminder_date ， dshipment_date和darrival_date 。 我需要將icmd_days添加到每個當前日期。

例如 對於第二行（無法上傳圖片），輸出應為old(05/07/2015)/new(06/04/2015),old(05/07/2015)/new(06/04/2015),old(05/15/2015)new(06/12/2015) 。 此行的icmd_days = 28 。 每行都有不同的天數或icmd_days值。

這是到目前為止的php代碼，但是它以相同的天數更新每一行。

require '../commonincludefiles.php';

global $conn;

$row_string = '';

$Today = date("Y-m-d");

global $conn;



$sub_query = "SELECT bisubscriptionID,dshipment_date,darrival_date,icmd_days,dadmin_reminder_date,vsubscriptionstatus FROM tbl_subscription WHERE darrival_date <= '".$Today."' AND edelete='0' AND vsubscriptionstatus='Shipped'";
$sub_res = mysqli_query($conn,$sub_query);
    $temp = array();
    if (mysqli_num_rows($sub_res) >0) {
    $i=0;
    while($row =  mysqli_fetch_array($sub_res)){
        $temp[$i]['bisubscriptionID'] = $row['bisubscriptionID'];
        $temp[$i]['icmd_days'] = $row['icmd_days'];
        $temp[$i]['new_dshipment_date'] = date('Y-m-d', strtotime($row['dshipment_date'] . '+ '.$row['icmd_days'].'days'));
        $i++;



$new_vsubscriptionstatus = 'Active';


$update_query = "UPDATE tbl_subscription SET vsubscriptionstatus='" . $new_vsubscriptionstatus . "',dshipment_date='" . $new_dshipment_date . "',tmodifydate=NOW() WHERE darrival_date <= '".$Today."' AND edelete='0' AND vsubscriptionstatus='Shipped' AND bisubscriptionID= $bisubscriptionID";
$update_res = mysqli_query($conn, $update_query);
}
}
?>

請對我好一點。 我以前從未編碼，因此被轉到了一個可以玩的網站。

Answer 1

因此，您可以將更新語句更改為如下所示，並一起刪除所有選擇：

UPDATE tbl_subscription 
SET vsubscriptionstatus = '" . $new_vsubscriptionstatus . "'
    ,dshipment_date=DATEADD(d,icmd_days,shipment_date)
    ,tmodifydate=NOW() 
WHERE darrival_date <= '".$Today."' 
AND edelete='0' 
AND vsubscriptionstatus='Shipped' 
AND bisubscriptionID= $bisubscriptionID

日期添加會自動將ICMD_DAYS中的天數添加到shipping_date中，並相應地設置您的日期。

您還可以刪除SQL中內置的GETDATE（）函數的當日邏輯：

UPDATE tbl_subscription 
SET vsubscriptionstatus = '" . $new_vsubscriptionstatus . "'
    ,dshipment_date=DATEADD(d,icmd_days,shipment_date)
    ,tmodifydate=NOW() 
WHERE darrival_date <= GETDATE()
AND edelete='0' 
AND vsubscriptionstatus='Shipped' 
AND bisubscriptionID= $bisubscriptionID

我猜您正在使用MySQL，而不是SQL Server。 這是在MySQL中執行此操作的方法。 我還為在服務器上創建的架構stackoverflow編寫了示例代碼。

我添加了刪除表，以防您在進行任何調整后重新運行代碼。

USE stackoverflow;

DROP TABLE `tbl_subscription`;

CREATE TABLE `tbl_subscription` (
  `dshipment_date` DATE NULL,
  `icmd_days` INT NULL,
  `darrival_date` DATETIME NULL,
  `edelete` BIT NULL,
  `csubscriptionstatus` VARCHAR(45) NULL,
  `bisubscriptionID` BIGINT NULL,
  `dadmin_reminder_date` DATE NULL,
  `dprevious_shipment_date` DATE NULL,
  `tmodifydate` DATETIME NULL
  )
ENGINE = InnoDB;


INSERT INTO `tbl_subscription`
    (
    dshipment_date
    ,icmd_days
    ,darrival_date
    ,edelete
    ,csubscriptionstatus
    ,bisubscriptionID
    ,dadmin_reminder_date
    ,tmodifydate
    )

SELECT 
    '2015-04-30' as dshipment_date
    ,30 as icmd_days
    ,null as darrival_date
    ,0 as edelete
    ,'Shipped' as csubscriptionstatus
    ,20150001 as bisubscriptionID
    ,null as dadmin_reminder_date
    ,NOW() as tmodifydate 
UNION ALL
SELECT 
    '2015-05-10' as dshipment_date
    ,25 as icmd_days
    ,null as darrival_date
    ,0 as edelete
    ,'Shipped' as csubscriptionstatus
    ,20150002 as bisubscriptionID
    ,null as dadmin_reminder_date
    ,NOW() as tmodifydate 
UNION ALL 
SELECT 
    '2015-04-10' as dshipment_date
    ,30 as icmd_days
    ,'2015-04-13' as darrival_date
    ,0 as edelete
    ,'Shipped' as csubscriptionstatus
    ,20150003 as bisubscriptionID
    ,null as dadmin_reminder_date
    ,NOW() as tmodifydate 
UNION ALL 
SELECT 
    '2015-05-25' as dshipment_date
    ,20 as icmd_days
    ,'2015-05-28' as darrival_date
    ,0 as edelete
    ,'Active' as csubscriptionstatus
    ,20150004 as bisubscriptionID
    ,null as dadmin_reminder_date
    ,NOW() as tmodifydate 
UNION ALL 
SELECT 
    '2015-04-27' as dshipment_date
    ,20 as icmd_days
    ,'2015-04-30' as darrival_date
    ,0 as edelete
    ,'Shipped' as csubscriptionstatus
    ,20150005 as bisubscriptionID
    ,null as dadmin_reminder_date
    ,NOW() as tmodifydate 
;

SELECT * FROM `tbl_subscription`;

SELECT dshipment_date,icmd_days,DATE_ADD(dshipment_date, INTERVAL icmd_days DAY) FROM `tbl_subscription`;


UPDATE `tbl_subscription`
SET dprevious_shipment_date = dshipment_date
    ,csubscriptionstatus = 'Active'
    ,dshipment_date=DATE_ADD(dshipment_date, INTERVAL icmd_days DAY)
    ,tmodifydate = NOW()
WHERE darrival_date <= NOW()
AND edelete='0' 
AND csubscriptionstatus='Shipped' 
/*AND bisubscriptionID= $bisubscriptionID -- this is not needed since we are not doing the loop anymore -- */
;

SELECT * FROM `tbl_subscription`;

但是您將需要的基本代碼是：

USE stackoverflow;
UPDATE `tbl_subscription`
SET dprevious_shipment_date = dshipment_date
    ,csubscriptionstatus = 'Active'
    ,dshipment_date=DATE_ADD(dshipment_date, INTERVAL icmd_days DAY)
    ,tmodifydate = NOW()
WHERE darrival_date <= NOW()
AND edelete='0' 
AND csubscriptionstatus='Shipped' 
/*AND bisubscriptionID= $bisubscriptionID -- this is not needed since we are not doing the loop anymore -- */

並且此代碼將消除您的循環來設置csubscriptionstatus值的需要。

我在表中添加了一個字段dprevious_shipment_date作為日期，以便您可以跟蹤上個月發貨的時間，以防萬一您需要恢復時也可以將其從更新語句中刪除。