ORA-00600: Oracle Internal Error – What It Means and How to Fix It
ORA-00600 is Oracle's generic internal error code, thrown directly by the Oracle kernel when it detects an unexpected condition it cannot handle gracefully. Unlike user-facing errors such as ORA-00942 (table not found) or ORA-01017 (invalid credentials), this error signals a problem within Oracle's own engine. The bracketed arguments in the error message — for example, ORA-00600: internal error code, arguments: [12700], [1], ... — are your most critical diagnostic clue.
Top 3 Causes
1. Known Oracle Software Bug (Missing Patch)
The most common cause is an unpatched Oracle bug. Oracle regularly releases Release Updates (RU) and Patch Set Updates (PSU) to fix known internal issues. Running an outdated patch level significantly increases the risk of hitting a documented bug that triggers ORA-00600.
