Top 5: blog posts of October 2025

Recent Posts

enq: TX - row lock contention
Learn how to identify the row involved in the occurrence of the wait even "enq: TX - row lock contention"
Oracle uses sha512 since RU 19.16
Learn how to resolve the CRS-2304 GPnP profile signature verification failed error when starting an 11.2 database on a 19c cluster.
The OH in one node of a Cluster has wrong owner and group
Learn how to fix corrupted permissions on an Oracle Home, either Oracle Grid or Oracle Database Server.
Secure connection using a wallet
Learn how to improve the security of your applications using Oracle Wallet / Secure External Password Store.
Application shows wrong time
What to do when we find that the database returns the time advanced or delayed for no apparent reason.
password rollover - rolling app timeout
Learn how to change the password of an Oracle user, without interrupting the applications service.

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