SQL查詢 - 爲了通過前兩個字母在列

我有一個SQL查詢，目前顯示這些結果：SQL查詢 - 爲了通過前兩個字母在列

Product ID Vendor Site Location 
----------------------------------------------- 
ANTIFOAM 51 CHEMICAL COMPANY MANUFACTURING SITE 
ANTIFOAM 51 CHEMICAL COMPANY MANUFACTURING SITE 
ANTIFOAM 51 CHEMICAL COMPANY HQ HQ-FOOD 
ACID 509 CSPA MANUFACTURING SITE 
ACID 509 CSPA HQ HQ-FOOD 
ACID 509 NORTH MANUFACTURING SITE 
ACID 509 NORTH HQ HQ-FOOD

我需要由總部在第一線，然後訂購生產現場。

任何幫助，非常感謝！

因此，它應該是這樣的：

Product ID Vendor Site Location 
---------------------------------------- 
ANTIFOAM 51 CHEMICAL COMPANY HQ HQ-FOOD 
ANTIFOAM 51 CHEMICAL COMPANY MANUFACTURING SITE 
ANTIFOAM 51 CHEMICAL COMPANY MANUFACTURING SITE 
ACID 509 CSPA HQ HQ-FOOD 
ACID 509 CSPA MANUFACTURING SITE 
ACID 509 NORTH HQ HQ-FOOD 
ACID 509 NORTH MANUFACTURING SITE

來源

2016-06-24 Lisa Green

您正在使用什麼數據庫管理系統？ –

「HQ」成爲了EN-US區域設置「MA」之前，所以假設「HQ-FOOD」和「製造基地」是僅有的兩個值在列，你可以只使用默認的排序順序：

select * from table order by ID, SiteLocation, Vendor

來源

2016-06-24 02:30:29

這不會給所需的輸出。才下訂單有之前與'ID'所有非'HQ-FOOD'記錄相同'ID'所有'HQ-FOOD'記錄，不考慮供應商。 – bgoldst

在PostgreSQL：

select * from t1 
order by 
    id, 
    regexp_replace(vendor,'\s+HQ$',''), 
    case when site_location='HQ-FOOD' then 1 else 2 end 
;

對regexp_replace()的文檔見here。

測試夾具

drop table if exists t1; 
create table t1 (product text, id int, vendor text, site_location text); 
insert into t1 (product,id,vendor,site_location) values 
    ('ANTIFOAM',51,'CHEMICAL COMPANY','MANUFACTURING SITE'), 
    ('ANTIFOAM',51,'CHEMICAL COMPANY','MANUFACTURING SITE'), 
    ('ANTIFOAM',51,'CHEMICAL COMPANY HQ','HQ-FOOD'), 
    ('ACID',509,'CSPA ','MANUFACTURING SITE'), 
    ('ACID',509,'CSPA HQ','HQ-FOOD'), 
    ('ACID',509,'NORTH','MANUFACTURING SITE'), 
    ('ACID',509,'NORTH HQ','HQ-FOOD') 
;

來源

2016-06-24 02:38:38 bgoldst

你可以看到我的代碼（在SQL Server）：

create table #t2 (product varchar(100), id int, vendor varchar(100), site_location varchar(100)); 
insert into #t2 (product,id,vendor,site_location) values 
    ('ANTIFOAM',51,'CHEMICAL COMPANY','MANUFACTURING SITE'), 
    ('ANTIFOAM',51,'CHEMICAL COMPANY','MANUFACTURING SITE'), 
    ('ANTIFOAM',51,'CHEMICAL COMPANY HQ','HQ-FOOD'), 
    ('ACID',509,'CSPA ','MANUFACTURING SITE'), 
    ('ACID',509,'CSPA HQ','HQ-FOOD'), 
    ('ACID',509,'NORTH','MANUFACTURING SITE'), 
    ('ACID',509,'NORTH HQ','HQ-FOOD') 

select product,id,vendor,site_location 
from #t2 
order by vendor desc 

drop table #t2

輸出：

ACID 509 NORTH HQ HQ-FOOD 
ACID 509 NORTH MANUFACTURING SITE 
ACID 509 CSPA HQ HQ-FOOD 
ACID 509 CSPA MANUFACTURING SITE 
ANTIFOAM 51 CHEMICAL COMPANY HQ HQ-FOOD 
ANTIFOAM 51 CHEMICAL COMPANY MANUFACTURING SITE 
ANTIFOAM 51 CHEMICAL COMPANY MANUFACTURING SITE

來源

2016-06-24 03:05:48 TonyBui

SQL查詢 - 爲了通過前兩個字母在列

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