How to use DBMS_SQLDIAG to Diagnose Crash or Error Issues
(Doc ID 1360120.1)
Last updated on DECEMBER 14, 2020
Applies to:
Oracle Database Cloud Exadata Service - Version N/A and laterOracle Database - Enterprise Edition - Version 11.1.0.6 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
Goal
This article describes how to use DBMS_SQLDIAG to find workarounds for issues where a query causes a session to crash or raise a critical error.
The article is specifically designed to address ora-7445 errors but can be easily modified to deal with other issue types.
For other ways of using DBMS_SQLDIAG see:
This article is not intended to describe how to implement workarounds using the 'SQL Patch' functionality. It is intended to provide potential workaround for critical errors like an ORA-7445 error.
For details of how to apply 'SQL Patch' refer to the DBMS_SQLDIAG.ACCEPT_SQL_PATCH procedure. See:
11g Release 2 (11.2)
Part Number E10577-04
Chapter 137 DBMS_SQLDIAG
Running the SQL Repair Advisor
http://docs.oracle.com/cd/E11882_01/appdev.112/e40758/d_sqldiag.htm#CEGGDBAA
Solution
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In this Document
| Goal |
| Solution |
| Example Diagnostic Script |
| Create a Diagnostic Task |
| Execute the Diagnostic Task |
| Generate a Report Output |
| The report output in this example looks like this: |
| Execute the recommendation, when available |
| Verify if implementing the recommendation helps to workaround the problem or not |
| Generate an execution plan for same exact SQL statement to verify use of SQL Patch |
| Cleanup the Diagnostic Task |
| Information about the referenced trace file and related SQL statement |
| References |