PLS-707   While Querying/Dropping View
Last updated on APRIL 19, 2017
Applies to:PL/SQL - Version 184.108.40.206 and later
Information in this document applies to any platform.
1) While querying a view, it fails with the below error but view is in VALID state.
2) Attempt to drop or re-create view also fails with same error but the underlying base query works fine when executed.
The view was working fine until the database was upgraded from 220.127.116.11 to 18.104.22.168
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