mongodb find field based on variable
var name = req.params.name;
var value = req.params.value;
var query = {};
query[name] = value;
collection.findOne(query, function (err, item) { ... });mongodb find field based on variable
var name = req.params.name;
var value = req.params.value;
var query = {};
query[name] = value;
collection.findOne(query, function (err, item) { ... });get only some fields of document in mongodb
db.student.find({}, {roll:1, _id:0})
same as SELECT roll FROM studentCopyright © 2021 Codeinu
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