我有sql查询来显示数据
"SELECT
`artikel`.`foto_naam`,
`fotografer`.`id`,
`fotografer`.`name_fotografer`,
`customer`.`first_name`,
`customer`.`last_name`,
`fotografer`.`domain_name`,
`fotografer`.`email`,
`order`.`invoice_no`,
`order`.`order_cost`,
`order`.`total_cost`,
`order`.`invoice_date`,
`order`.`payment`,
`order`.`status`
FROM
`artikel_group`
INNER JOIN `artikel` ON `artikel`.`artikelgroup_id` = `artikel_group`.`id`
INNER JOIN `fotografer` ON `artikel_group`.`fotografer_id` = `fotografer`.`id`
INNER JOIN `order_has_artikelgroup` ON `order_has_artikelgroup`.`artikelgroup_id` = `artikel_group`.`id`
INNER JOIN `order` ON `order`.`id` = `order_has_artikelgroup`.`order_id`
INNER JOIN `customer` ON `order`.`customer_id` = `customer`.`id`"
我的st查询在btowser中的查询结果我使用php framework codeigniter
Name | email | customer | invoice id|
Lekto | lekto@gmail.com | edwin | 11 |
Lekto | lekto@gmail.com | risa | 12 |
Lekto | lekto@gmail.com | edwin | 13 |
heko | heko@gmail.com | pae | 15 |
heko | heko@gmail.com | edwin | 16 |
如何分组字段
Name | email | customer | invoice id|
Lekto | lekto@gmail.com | edwin | 11 |
| | risa | 12 |
| | edwin | 13 |
heko | heko@gmail.com | pae | 15 |
| | edwin | 16 |
请帮助显示这样的查询
答案 0 :(得分:1)
奇怪的问题,但是如果你真的需要在MySQL中,那么你可以使用USER VARIABLES为列表中的子项设置Name
和email
列为''(空字符串)。
DEMO FIDDLE 或者例如
select
if(@tName!= Name, if(@'tNAME':= Name, Name,Name) , '' ),
if(@tEmail!= Email, if(@'tEmail':= Email, Email ,Email) , '' ),
customer,
invoice_id,
/* blah blah blah */
from
tables
join (select @'tName':='', @'tEmail':='') T on 1=1
/* blah blah blah */
我提供join (select @'tName':='') T on 1=1
来重新初始化用户变量,万一你无法控制它们。
答案 1 :(得分:0)
你可以在mysql中做的一件事就是用group by
和group_concat()
包装你的查询。像这样:
SELECT
name,
email,
group_concat(customer) AS customers,
group_concat(invoice_id) AS invoice_ids
FROM
(...query you already have..)
GROUP BY
name, email
结果将如下所示:
name email customers invoice_ids
heko heko@gmail.com pae,edwin 15,16
Lekto lekto@gmail.com edwin,risa,edwin 11,12,13