我有一个数据库名称q8marketz
里面有一个表product
。该表有许多字段,例如: - 产品ID,型号,数量,运输等......
我已将许多产品上传到我的表格...有一个字段shipping
,所有产品的shipping
值已设置为1
,所以现在我要设置所有产品运送价值均为0
。
任何人都可以帮助我吗? 对不起,我的英语不完美...
下面给出了两个产品细节......
===Database q8marketz == Table structure for table product |------ |Field|Type|Null|Default |------ |//**product_id**//|int(11)|No| |model|varchar(64)|No| |downpayment|varchar(32)|No| |sku|varchar(64)|No| |upc|varchar(12)|No| |ean|varchar(14)|No| |jan|varchar(13)|No| |isbn|varchar(13)|No| |mpn|varchar(64)|No| |location|varchar(128)|No| |quantity|int(4)|No|0 |stock_status_id|int(11)|No| |image|varchar(255)|Yes|NULL |manufacturer_id|int(11)|No| |shipping|tinyint(1)|No|1 |price|decimal(15,4)|No|0.0000 |points|int(8)|No|0 |tax_class_id|int(11)|No| |date_available|date|No| |weight|decimal(15,8)|No|0.00000000 |weight_class_id|int(11)|No|0 |length|decimal(15,8)|No|0.00000000 |width|decimal(15,8)|No|0.00000000 |height|decimal(15,8)|No|0.00000000 |length_class_id|int(11)|No|0 |subtract|tinyint(1)|No|1 |minimum|int(11)|No|1 |sort_order|int(11)|No|0 |status|tinyint(1)|No|0 |date_added|datetime|No|0000-00-00 00:00:00 |date_modified|datetime|No|0000-00-00 00:00:00 |viewed|int(5)|No|0 == Dumping data for table product |886|BA-HANDBAGS-001ss| | | | | | | |aaaa|95|7|data/hand-bags.jpg|7|1|32.5000|25|0|2012-09-03|0.00000000|1|0.00000000|0.00000000|0.00000000|1|1|1|1|1|2012-09-25 13:00:18|0000-00-00 00:00:00|0 |883|BA-HANDBAGS-001ss| | | | | | | |aaaa|95|7|data/hand-bags.jpg|7|1|32.5000|25|0|2012-09-03|0.00000000|1|0.00000000|0.00000000|0.00000000|1|1|1|1|1|2012-09-17 14:08:08|2012-09-25 13:00:06|9 == Table structure for table product |------ |Field|Type|Null|Default |------ |//**product_id**//|int(11)|No| |model|varchar(64)|No| |downpayment|varchar(32)|No| |sku|varchar(64)|No| |upc|varchar(12)|No| |ean|varchar(14)|No| |jan|varchar(13)|No| |isbn|varchar(13)|No| |mpn|varchar(64)|No| |location|varchar(128)|No| |quantity|int(4)|No|0 |stock_status_id|int(11)|No| |image|varchar(255)|Yes|NULL |manufacturer_id|int(11)|No| |shipping|tinyint(1)|No|1 |price|decimal(15,4)|No|0.0000 |points|int(8)|No|0 |tax_class_id|int(11)|No| |date_available|date|No| |weight|decimal(15,8)|No|0.00000000 |weight_class_id|int(11)|No|0 |length|decimal(15,8)|No|0.00000000 |width|decimal(15,8)|No|0.00000000 |height|decimal(15,8)|No|0.00000000 |length_class_id|int(11)|No|0 |subtract|tinyint(1)|No|1 |minimum|int(11)|No|1 |sort_order|int(11)|No|0 |status|tinyint(1)|No|0 |date_added|datetime|No|0000-00-00 00:00:00 |date_modified|datetime|No|0000-00-00 00:00:00 |viewed|int(5)|No|0
答案 0 :(得分:1)
您可以轻松使用这样的更新查询:
update product set shipping=0;
这会将所有行更新为0。
如果您只想指定某些选定的行,可以添加where
子句来限制您更新的行数,如下所示:
update product set shipping=0 where points>2;
这会更新points
值大于2的所有行。
编辑:代码可以直接从mysql控制台运行,也可以通过PHP中的数据库调用运行,如下所示:
$dbh = new PDO($hostname, $username, $password);
$sql='update product set shipping=0 where points>2';
$stmt = $dbh->query($sql);
答案 1 :(得分:0)
您可以使用SQL UPDATE语句更新表中的现有记录。
SQL UPDATE语法:
UPDATE table_name
SET column1=value, column2=value2,...
WHERE some_column=some_value
对于您的考试使用:
UPDATE product
SET shipping=0;
==>代码可以直接从mysql控制台运行。
要使用PHP Call,请尝试以下代码:
<?php
$dataBase = new PDO($hostname, $username, $password);
$sqlQuery ='update product set shipping=0';
$stmt = $dataBase->query($sqlQuery );
?>