Rename/Update JSON field keys in Mongo Document

Rename/Update JSON field keys in Mongo Document: In this tutorial will see how to modify/rename JSON keys without deleting/Modifying the JSON Object for the respective key. I have a document shown below

Now I want to update the key

Update Arrays Element in MongoDB

Update Arrays Element in MongoDB: Updating single element in Array data type in MongoDB using the shell. I have 2 documents in MongoDB like below

now I want to update the grades value of 100 to 1000. Below is

Update Multiple Array Elements Using greaterthanorequal lessthanorequal in Mongo

Update Multiple Array Elements Using greaterthanorequal lessthanorequal in Mongo: Updating multiple elements in Array data type in MongoDB using the shell. We have 2 documents in MongoDB like below

now we want to update grades value of which are