How Edition-Based Redefinition in Oracle Database 11gR2/12c/18c/19c works
Edition-based redefinition in Oracle Database 11gR2//12c/18c/19c allows multiple versions of PL/SQL objects, views, and synonyms in a single schema, which makes it possible to perform upgrades of database applications with zero downtime. It also means we can maintain multiple copies of the same object What is Edition in Oracle? An edition is effectively a version …
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