![mysql - Can I use the alias of a derived table as the table reference for comparison subquery? - Database Administrators Stack Exchange mysql - Can I use the alias of a derived table as the table reference for comparison subquery? - Database Administrators Stack Exchange](https://i.stack.imgur.com/6xMMj.jpg)
mysql - Can I use the alias of a derived table as the table reference for comparison subquery? - Database Administrators Stack Exchange
![Databases: Error Code : 1248 Every derived table must have its own alias in MySQL (2 Solutions!!) - YouTube Databases: Error Code : 1248 Every derived table must have its own alias in MySQL (2 Solutions!!) - YouTube](https://i.ytimg.com/vi/X2gnCyAqTVg/maxresdefault.jpg)
Databases: Error Code : 1248 Every derived table must have its own alias in MySQL (2 Solutions!!) - YouTube
![Every derived table must have its own alias sql语句报错解决_all select expression must have a alias-CSDN博客 Every derived table must have its own alias sql语句报错解决_all select expression must have a alias-CSDN博客](https://img-blog.csdnimg.cn/0bb6e59c2b7b4bde9ad2e9a49174f89a.png?x-oss-process=image/watermark,type_ZHJvaWRzYW5zZmFsbGJhY2s,shadow_50,text_Q1NETiBARE5ZRFlT,size_20,color_FFFFFF,t_70,g_se,x_16)
Every derived table must have its own alias sql语句报错解决_all select expression must have a alias-CSDN博客
![Using subquery in SQL that is returning Every derived table must have its own alias error? - Stack Overflow Using subquery in SQL that is returning Every derived table must have its own alias error? - Stack Overflow](https://i.stack.imgur.com/0Csiz.png)