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Many a times developer do ask a common question that, we need to change existing data bearing field’s data type to another data type with out hampering existing data. Such as example, in database date field was in string value, Continue readingMongoDB change or update field type→

When we are thinking for exporting data in csv, tsv or json format from MongoDB then probably one tool we are using that is mongoexport. This is pretty straight forward and setting up all parameters will get back your desired Continue readingMongoDB export (mongoexport) using aggregation→

I have faced many projects which are facing performance issue with MongoDB and I do call for tuning up the performance. What I do apparently in a quick succession, that I listed below the steps. Hardware Resource Firstly, quantify already Continue readingMongoDB performance tuning→

Installation of MongoDB is not my goal, while installation mongodb on ubuntu we need to remember that, It should be easily upgraded to its latest version. In this article, 1. How do you easily install mongodb in your ubuntu and Continue readingMongoDB installation and upgradation in Ubuntu→

CommandDescriptionExample&Run the previous command in the backgroundls &&&Logical ANDif [ “$X” -ge “0” ] && [ “$X” -le “9”]||Logical ORif [ “$X” -lt “0” ] || [ “$X” -gt “9” ]^Start of linegrep “^X”$End of linegrep “X$”=String equality (cf. -eq)if Continue reading3. Shell comparison operator & reference→