Question

当此查询返回＆＃34;中心＆＃34;注册，所有字段中都有一个与我不想显示的名称相同的单词。我可以通过PHP制作它，但我需要在db上使用它。

基础知识我知道，但我已经很长时间没有做过SQL了

SELECT
o.id_order,
o.reference AS Ref,
c.firstname AS Name,
c.lastname AS Last Name,
pl.`name` AS Center,
od.product_name AS Product,
od.product_quantity AS Quant,
ROUND(od.product_price * 1.21,2) AS Price,
o.date_add AS `Date`
FROM ps_orders AS o
INNER JOIN ps_order_detail AS od ON od.id_order = o.id_order
INNER JOIN ps_customer AS c ON c.id_customer = o.id_customer
INNER JOIN ps_product_lang AS pl ON pl.id_product = od.product_id
WHERE pl.id_lang = 1
ORDER BY od.id_order_detail DESC

当这返回中心数据时，所有字段都有介词＆＃34;＆＃34;在前面，返回类似的东西：

Center 
The Odoo Team Center
The Dev house

然后我需要显示类似

的内容

Center 
Odoo Team Center
Dev house

Answer 1

您可以使用REPLACE：

    SELECT
    o.id_order,
    o.reference AS Ref,
    c.firstname AS Name,
    c.lastname AS Last Name,
    REPLACE(pl.`name`,"The ","") AS Center,
    od.product_name AS Product,
    od.product_quantity AS Quant,
    ROUND(od.product_price * 1.21,2) AS Price,
    o.date_add AS `Date`
    FROM ps_orders AS o
    INNER JOIN ps_order_detail AS od ON od.id_order = o.id_order
    INNER JOIN ps_customer AS c ON c.id_customer = o.id_customer
    INNER JOIN ps_product_lang AS pl ON pl.id_product = od.product_id
    WHERE pl.id_lang = 1
    ORDER BY od.id_order_detail DESC

文档： https://dev.mysql.com/doc/refman/5.7/en/replace.html

演示： http://sqlfiddle.com/#!9/a5640/91

Answer 2

如果您总是想删除前四个字符，那么这样的事情应该有效：

SELECT SUBSTRING(center, 4, LENGTH(center)-3) FROM YOURTABLE;

选择一个sql字段，不要显示选择的特定单词

2 个答案: