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Select multiple values with MongoDB OR operator
Let us first create a collection with documents −
> db.demo270.insertOne({"ClientName":"Chirs","Age":34});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e481e371627c0c63e7dbab8")
}
> db.demo270.insertOne({"ClientName":"David","Age":31});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e481e3d1627c0c63e7dbab9")
}
> db.demo270.insertOne({"ClientName":"Bob","Age":31});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e481e431627c0c63e7dbaba")
}
> db.demo270.insertOne({"ClientName":"Carol","Age":36});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e481e491627c0c63e7dbabb")
}Display all documents from a collection with the help of find() method −
> db.demo270.find();
This will produce the following output −
{ "_id" : ObjectId("5e481e371627c0c63e7dbab8"), "ClientName" : "Chirs", "Age" : 34 }
{ "_id" : ObjectId("5e481e3d1627c0c63e7dbab9"), "ClientName" : "David", "Age" : 31 }
{ "_id" : ObjectId("5e481e431627c0c63e7dbaba"), "ClientName" : "Bob", "Age" : 31 }
{ "_id" : ObjectId("5e481e491627c0c63e7dbabb"), "ClientName" : "Carol", "Age" : 36 }Following is the query to select multiple values with OR operator −
> db.demo270.find({
... "$or" : [
... {
... "ClientName" : "Carol"
... },
... {
... "Age" : 31
... }
... ]
...}
...);This will produce the following output −
{ "_id" : ObjectId("5e481e3d1627c0c63e7dbab9"), "ClientName" : "David", "Age" : 31 }
{ "_id" : ObjectId("5e481e431627c0c63e7dbaba"), "ClientName" : "Bob", "Age" : 31 }
{ "_id" : ObjectId("5e481e491627c0c63e7dbabb"), "ClientName" : "Carol", "Age" : 36 }
Updated on: 31-Mar-2020
560 Views
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