SQL显示美国成为美国

Question

的美国

SELECT Country From Employees 

结果：

我想告诉美国，而不是美国

Answer 1

尝试这个。

SELECT 
CASE Country 
WHEN 'US' THEN 'United States of America' 
WHEN 'UK' THEN 'United Kingdom' 
-- ...any other translation you would like to add here 
ELSE Country 
END AS DisplayCountry 
From Employees 

Answer 2

使用CASE WHEN ... THEN ...

SELECT Country CASE WHEN 'USA' THEN ' United States of America' 
        WHEN 'UK' THEN ' United Kingdom ' 
        ELSE Country 
        END 
FROM Employees 

Answer 3

国家名称不在数据库中，所以您必须从某处获取它们。

自然会引入国家表，例如

 
country name 
USA  United States of America 
UK  United Kingdom 
... 

并加入此项。

另一种选择是在查询中显示所有名称，如其他答案中所示。

Answer 4

SELECT CASE WHEN [COUNTRY] = 'USA' THEN 'United States Of America' 
WHEN [COUNTRY] = 'UK'THEN 'UNITED KINGDOM' ELSE [COUNTRY] END AS [COUNTRY_FULL] 
FROM [Employees] 

那是一个case语句的例子，你可以使用：

http://www.1keydata.com/sql/sql-case.html

Answer 5

介绍另一个表国家

Code  Full_name 
___________________________________ 
USA  United States of America 
UK  United Kingdom 
etc.... 

然后加入员工表国家

SELECT Full_Name FROM Employee e 
LEFT JOIN Country c ON e.country = c.Code