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ORA-01403: No data found
What it means
A SELECT ... INTO returned no row, a collection element that was never assigned (or was deleted) was read, or UTL_FILE reached end of file. In SQL called from PL/SQL functions it can silently become NULL.
How to fix it
Handle it explicitly: BEGIN SELECT ... INTO ...; EXCEPTION WHEN NO_DATA_FOUND THEN ... END; or use an aggregate (MAX) / cursor loop when "no row" is normal. For collections check .EXISTS(i) first.
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.