Column Usage Statistics
select r.name owner, o.name tabl , c.name colmn, equality_preds, equijoin_preds, nonequijoin_preds, range_preds, like_preds, null_preds, timestamp from sys.col_usage$ u, sys.obj$ o, …
select r.name owner, o.name tabl , c.name colmn, equality_preds, equijoin_preds, nonequijoin_preds, range_preds, like_preds, null_preds, timestamp from sys.col_usage$ u, sys.obj$ o, …