v1.colName, v2.colName ==> or decode( v1.colName, v2.colName, 1, 0) = 0
For Oracle DB, as it doesn't consider null != informed DATE, and considers null != null.
For the WHERE clause.
= 0 to get differences
= 1 to get "sameness"...
Submitted by R. Moreno - 4 years ago