In Mongodb, how do I add a field to every record? -


i want add field "bio" "about" section of document.

i suppose you're using mongo console. add field each document in collection have use command: 

db.foo.update({},{$set : { "about.bio" : ""}} , true, true);

of course have replace foo real collection name. command use empty string ("") default value new field: can change behaviour changing value in command.

hope helps


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