NULLIF and COALESCE Chain?!

NULLIF and COALESCE can be CHAINED! NULLIF converts to NULL, COALESCE converts from NULL. This transformation chain will surprise you!

#sql #sqltricks #nullif #coalesce #functionchaining #sqlweird #sqlquiz #codingchallenge #sqlshorts #sqlwtf #nullhandling #advancedsql

https://www.youtube.com/watch?v=36UQvnnAo5s