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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
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{ "_id" : ObjectId("5b594b462fe5553ce8071c27"), "grades" : [80.0, 200, 300], "json1" : { "key1" : "value1", "key2" : "value2" }, "json2" : { "key2" : "value", "key1" : "value1" } } |
Now I want to update the key
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
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/* 1 */ { "_id" : ObjectId("5b594b462fe5553ce8071c27"), "grades" : [100, 200, 300] } /* 2 */ { "_id" : ObjectId("5b594b712fe5553ce8071c28"), "grades" : [400, 500, 100] } |
now I want to update the grades value of 100 to 1000. Below is
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
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/* 1 */ { "_id" : ObjectId("5b594b462fe5553ce8071c27"), "grades" : [100, 200, 300] } /* 2 */ { "_id" : ObjectId("5b594b712fe5553ce8071c28"), "grades" : [400, 500, 100] } |
now we want to update grades value of which are