REGEXP_LIKE Hangs and CPU Spikes After DB Upgrade To 11gr2 From 10.2.0.4
(Doc ID 1276379.1)
Last updated on JANUARY 07, 2025
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.1 to 11.2.0.1 [Release 11.2]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
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
Goal
The following SQL which contains regexp_like seems to hang after db upgrade from 10.2.0.4 to 11.2.0.1:
SELECT * FROM dual WHERE REGEXP_LIKE('12aBC', '^(-{0,1}+{0,1})[0-9]+(.{0,1}[0-9]+)$')
Solution
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In this Document
| Goal |
| Solution |
| References |