To fetch records “greater than” and “greater than equals to” to a specific value, mongodb provide $gt and $gte operator respectively.
Syntax:
--For greater than {field: {$gt: value} } --For greater than equals to {field: {$gte: value} } |
Example: Suppose we have a collection “Order” now we want to fetch those documents which quantity is greater than 2.
{ "_id" : 1, "item" : "item1", "qty" : 1, "Price" : 500 } { "_id" : 2, "item" : "item1", "qty" : 2, "Price" : 200 } { "_id" : 3, "item" : "item1", "qty" : 4, "Price" : 300 } { "_id" : 4, "item" : "item1", "qty" : 8, "Price" : 700 } { "_id" : 5, "item" : "item1", "qty" : 2, "Price" : 500 } |
Run following queries
db.Order.find({"qty":{$gt:2}}) // for greater than db.Order.find({"qty":{$gte:2}}) // for greater than equals to |
Results respectively
{ "_id" : 3, "item" : "item1", "qty" : 4, "Price" : 300 } { "_id" : 4, "item" : "item1", "qty" : 8, "Price" : 700 } |
{ "_id" : 2, "item" : "item1", "qty" : 2, "Price" : 200 } { "_id" : 3, "item" : "item1", "qty" : 4, "Price" : 300 } { "_id" : 4, "item" : "item1", "qty" : 8, "Price" : 700 } { "_id" : 5, "item" : "item1", "qty" : 2, "Price" : 500 } |