All errors › ORA errors
ORA-01445: Cannot select ROWID from, or sample, a join view without a key-preserved table
What it means
A query (or an updatable-view operation) needs the ROWID of a join view, but no table is key-preserved.
How to fix it
Join on primary/unique keys so one table is key-preserved, or select from the base table.
Catch it before it runs
ORA Error Helper
Explains ORA-/PLS- codes inside JetBrains IDEs and DataGrip. PL/SQL Lint
Flags risky PL/SQL patterns while you type. Oracle Plan Reader
Reads execution plans and points at the slow step. PL/SQL in Practice
Kindle book with practical PL/SQL for working developers.
Explains ORA-/PLS- codes inside JetBrains IDEs and DataGrip. PL/SQL Lint
Flags risky PL/SQL patterns while you type. Oracle Plan Reader
Reads execution plans and points at the slow step. PL/SQL in Practice
Kindle book with practical PL/SQL for working developers.
Nearby errors
Updated 2026-11-12.