Samir Roy, Author At DBA POSTMORTEM

How to RESOLVE ORA-00257 : archiver error : Easy GUIDE

While managing Oracle databases, encountering the ORA-00257 error can be frustrating, especially during critical operations. This error has to be […]

As a DBA, we often face this error ORA-01652 on a daily basis. Today, we will discuss how to resolve

ORA-04031 is one of the most common errors we used to get in our DBA life. Today we will discuss

In our article, we have already discussed the ORA-00020: maximum number of processes exceeded error. So, today we will discuss

Stop Oracle RAC Database operations must be done carefully to keep it highly available and protect your data. Oracle offers

Start Oracle RAC Database operations should be done using Oracle’s srvctl utility to ensure consistent, cluster-aware startup procedures across all

In our previous article, we have learnt how to create index in MongoDB. Now, as a mongo DBA if you’re

Index in MongoDB has a significant role to improve query performance by allowing efficient data retrieval. If the index is

As a DBA when managing a MongoDB instance, monitoring database size is crucial for performance optimization and storage planning. This