All errors › ORA errors
ORA-04031: Unable to allocate bytes of shared memory
What it means
The shared pool (or large/java pool) is fragmented or too small, very often due to SQL without bind variables flooding the library cache.
How to fix it
Use bind variables, size the SGA properly; flushing the shared pool is only a temporary relief.
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.