UPDATE: Take my brand new SQL course using PostgreSQL for just $4 (limited time offer) [ Ссылка ]
SQL For Everyone - Tutorial 29 - Self Join
A self JOIN is a regular join, but the table is joined with itself.
[ Ссылка ]
[ Ссылка ]
![](https://i.ytimg.com/vi/KHiQr3MG_8E/maxresdefault.jpg)
UPDATE: Take my brand new SQL course using PostgreSQL for just $4 (limited time offer) [ Ссылка ]
SQL For Everyone - Tutorial 29 - Self Join
A self JOIN is a regular join, but the table is joined with itself.
[ Ссылка ]
[ Ссылка ]