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SQL Basics in PostgreSQL

Get to know the data
6. Get to know the equipment table – continued
JOIN revisited
LEFT JOIN
RIGHT JOIN
FULL JOIN
OUTER JOINS
NATURAL JOIN
Aliases for tables

Instruction

Good. The equipment table is very much similar to the student table. It has three columns:

  • id – the id of the equipment piece.
  • name – which tells us what it is.
  • room_id – the room where we can find the piece of equipment.

Note that some pieces aren't assigned to any room – they are simply stored in the warehouse, in case you're curious.

Exercise

Click Next exercise to continue.