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How Recover an Oracle Database Backup in Windows When Everything is Lost
Which steps have to follow in order to recover a backup of a database in a windows platform when everything is lost ?
How to Recover Oracle Database from Loss Of Online Redo Log And ORA-312 And ORA-313
This article aims at walking you through some of the common recovery scenarios after a loss of Online Redolog
Steps to troubleshoot Oracle RAC clusterware GIPCHA connection failure
How to troubleshoot when a local process (non bootstrap client) fails to CONNECT to a peer process using the GIPCHA communication protocol?
Grid Infrastructure (GI) startup fails because crsd fails to start in a flex asm environment (Doc ID 2392762.1)
In a Flex ASM environment, Grid Infrastructure (GI) startup fails when GI is running on one or more of other nodes,
Bug 22891868 - Oracle Grid Clusterware OHASD does not restart CRSD when crsd.bin is hanging (Doc ID 22891868.8)
Bug 22891868 OHASD does not restart CRSD when crsd.bin is hanging
This note gives a brief overview of bug 22891868.
oracle clusterware gi startup issue what to check?
The purpose of this note is to provide a summary of the top 5 issues that may prevent the successful startup of the Grid Infrastructure (GI) stack.
Troubleshooting Oracle Clusterware GI CRS startup issues CRS-4535 Cannot communicatew with Cluster Ready Services
After rebooting a node, the CRS stack fails to start. This bulletin offers a list of things to check while troubleshooting the cause.
devos ransomware/malware encrypted oracle database datafiles
one oracle database has been encrypted by devos ransomware malware ,
flashback query failed with ORA-01555?
if you deleted/updated data by mistake in oracle. and try to recover data from flashback query. Your query may fail with ora-01555 error:
RMAN RESTORE fails with RMAN-00600 
Oracle Database - Enterprise Edition - Version 10.2.0.1 to 10.2.0.4 [Release 10.2]