表X已经存在使用创建视图X为 - MySQL的

Question

我做：

create view WritersCouples as 
select researcher.serial_number as S1, researcher.firstname as S2 
from researcher, researcher as rs 
where researcher.serial_number <> rs.serial_number; 

而且我发现了以下错误：

Error Code: 1050. Table 'WritersCouples' already exists 

我使用的工作台对MySQL

谢谢！

Answer 1

添加以下内容：

create or replace view myview 
as 
select .... 

Answer 2

您是否已经创建了视图？或者你已经有一个名为WritersCouples的表？

你可以试试这个：

create or replace view WritersCouples as 
select researcher.serial_number as S1, researcher.firstname as S2 
from researcher, researcher as rs 
where researcher.serial_number <> rs.serial_number; 

，如果它已经存在，将取代视图。

Answer 3

如果视图已经存在，加上OR REPLACE条款：

create OR REPLACE view WritersCouples as 
select researcher.serial_number as S1, researcher.firstname as S2 
from researcher, researcher as rs 
where researcher.serial_number <> rs.serial_number;