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如何按 SQL 中的任意條件排序

How to order by an arbitrary condition in SQL(如何按 SQL 中的任意條件排序)
本文介紹了如何按 SQL 中的任意條件排序的處理方法,對大家解決問題具有一定的參考價(jià)值,需要的朋友們下面隨著小編來一起學(xué)習(xí)吧!

問題描述

我有下表:

CREATE TABLE Bable(id int 身份主鍵,名稱 varchar(20),關(guān)于 varchar(30));INSERT INTO Bable (name,about) VALUES('ООО Name Firm 1','texttexttexttext'),('ООО Name Firm 2','texttexttexttext'),('ООО Name Firm 3','texttexttexttext'),('ООО Name Firm 4','texttexttexttext'),('ООО Name Firm 5','texttexttexttext'),('ООО Name Firm $1','texttexttexttext'),('ООО Name Firm $2','texttexttexttext'),('ООО Name Firm $3','texttexttexttext'),('ООО Name Firm 6','texttexttexttext'),('ООО Name Firm 7','texttexttexttext')

我可以編寫如下查詢:

SELECT * FROM Bable WHERE about = 'texttexttexttext'

如何更改此查詢以返回排序的結(jié)果,使得名稱包含$"的那些首先出現(xiàn),然后是那些不出現(xiàn)的,然后每個(gè)組按 name 升序排列?

表格結(jié)構(gòu)在這里

解決方案

SELECT *從 BableORDER BY CASE WHEN name LIKE '%$..' THEN 0 ELSE 1 END,姓名

  • SQLFiddle 演示

I have the following table:

CREATE TABLE Bable
    (
     id int identity primary key, 
     name varchar(20), 
     about varchar(30)
    );
INSERT INTO Bable (name,about) VALUES
('ООО Name Firm 1','texttexttexttext'),
('ООО Name Firm 2','texttexttexttext'),
('ООО Name Firm 3','texttexttexttext'),
('ООО Name Firm 4','texttexttexttext'),
('ООО Name Firm 5','texttexttexttext'),
('ООО Name Firm $1','texttexttexttext'),
('ООО Name Firm $2','texttexttexttext'),
('ООО Name Firm $3','texttexttexttext'),
('ООО Name Firm 6','texttexttexttext'),
('ООО Name Firm 7','texttexttexttext')

And I can write a query like the following:

SELECT * FROM Bable WHERE about = 'texttexttexttext'

How can I alter this query to return results ordered such that those with names containing "$" appear first, followed by those that do not, with each group then ordered by name ascending?

Structure of the table is here

解決方案

SELECT *
FROM   Bable
ORDER  BY CASE WHEN name LIKE '%$..' THEN 0 ELSE 1 END,
          Name 

  • SQLFiddle Demo

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