mySQL groupconcat返回BLOB xxxB/Kib [英] mySQL groupconcat returning BLOB xxxB / Kib
问题描述
根据成员的建议和上一篇文章，我正在对Interspire购物车数据库中的多个表进行查询，如下所示:
On advice from a member and a previous post I'm running a query against multiple tables on an interspire shopping cart database that looks like this:
SELECT c.customerid, c.custconfirstname, c.custconemail, o.ordstatus, o.orddate, GROUP_CONCAT( 'Order Id: ', orderid, ' | Product name: ', ordprodname, ' | Quantity: ', ordprodqty, '<br>' ) AS ordered_items
FROM isc_customers c
LEFT OUTER JOIN isc_orders o ON o.ordcustid = c.customerid
LEFT OUTER JOIN isc_order_products op ON op.orderorderid = o.orderid
LEFT OUTER JOIN isc_product_images pi ON pi.imageprodid = op.orderprodid
GROUP BY c.customerid
HAVING COUNT( DISTINCT o.ordcustid ) >0
AND o.ordstatus = 0
AND o.orddate < UNIX_TIMESTAMP( ) - '18000'
AND o.orddate > UNIX_TIMESTAMP( ) - '259200'
我进入phpmyadmin的结果如下:
The result I'm getting in phpmyadmin looks like this:
customerid custconfirstname custconemail ordstatus orddate ordered_items
6532 Cust1 CUST1@EXAMPLE.COM 0 1337502962 [BLOB - 498B]
5522 Cust2 CUST2@EXAMPLE.COM 0 1337670453 [BLOB - 284B]
4321 Cust3 CUST3@EXAMPLE.COM 0 1337507476 [BLOB - 521B]
1235 Cust4 CUST4@EXAMPLE.COM 0 1337577095 [BLOB - 1.0 KiB]
9560 Cust5 CUST5@EXAMPLE.COM 0 1337518452 [BLOB - 1.0 KiB]
当我尝试在php页面中回显结果以对其进行测试时，什么也没有返回.我只是想知道Blob的含义以及如何使用它.显然其中有一些数据，我只是不知道如何访问或使用它.
When I try to echo the result in a php page to test it, nothing is returning. I'm just wondering what the Blob means and how to use it. It's obvious it's got some data in it, I just don't know how to access it or use it.
推荐答案
在phpmyadmin中，显示值的上方可以看到+ Options按钮，单击该按钮，然后选中Show BLOB内容，然后单击Go按钮.它将显示这些值.
In phpmyadmin above the values displaying you can see the +Options button Click on that then check the Show BLOB contents and click Go button.it will display the values.
您可以按照与访问客户ID相似的方式来使用ordered_items.
You can use the ordered_items in the similar way how you are accessing the customerid.
在php
foreach($resultSet as $row)
{
$customerid = $row['customerid'];
$ordered_items = $row['ordered_items'];
}
变量$ ordered_items包含phpmyadmin中显示的值.
The variable $ordered_items contains the values as it is displayed in phpmyadmin.
这篇关于mySQL groupconcat返回BLOB xxxB/Kib的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
