Revision
Comparisons with NULL
Functions with NULL
COALESCE to the rescue
NULLIF
Revision and practice
30. Congratulations

## Instruction

Wow, piece of cake for you. Congratulations!

That's all you need to know about NULLs in our course. We hope you enjoyed working with Mr Amund and his company. See you in the next part!

## Exercise

Press to finish this part.

Code editor

TableConsole