我正在做 :
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;
我收到以下错误:
Error Code: 1050. Table 'WritersCouples' already exists
我在 mySql 上使用工作台
谢谢 !