After MongoDB installation by default Authentication was disabled. So we nned to create users with different role permission to enable Authentication . In this topic I am going to explain all steps to add users to enable Authentication in MongoDB
Monitoring, troubleshooting and debugging is most imporatnt part of software developer's life.
Logging makes this a much easier and smoother process.
Common Format of logger
Format of each line in the log file. Each line must start with "~# " (tilde hash space)
Sometimes we need to remove users from mongoDB which was added by mistake or no need of that users
So here I am going to explain steps to remove user from mongoDB
Sometimes we need to compare 2 CSV and get a list of common rows or common columns, that is a very common requirement.
But sometimes we also need to compare CSV files and based one comparison need to update CSV file. In this example I am going to elaborate that, hope that will help others.