MongoDB change or update field type

FeaturedChange / Update field type in MongoDB

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, but need to convert it in ISODate() format. Before going to nitty gritty details of … Continue reading MongoDB change or update field type

MongoDB export (mongoexport) using aggregation

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 data in desired format, but in this article we are talking about some situation which … Continue reading MongoDB export (mongoexport) using aggregation

MongoDB auto increment field

This article for those who just jump into MongoDB ocean from RDBMS world. First of all, I can tell you do not start finding stuff which usually support by RDBMS into MongoDB. When you decided to start learning MongoDB then you should be consider yourself as a novice, then you can probable start learning it … Continue reading MongoDB auto increment field