SQL “Join” on null values

Question

For reasons beyond my control, I need to join two tables and I need null values to match. The best option I could think of was to spit out a UUID and use that as my comparis

Answer 1

@Sarath Avanavu

This one is not the best approach. If TA.COL1 keeps value 0 and TB.COL2 is NULL it will join those records, which is not correct.

SELECT *
FROM TABLEA TA
JOIN TABLEB TB ON NVL(TA.COL1,0)=NVL(TB.COL2,0);