To get all the MongoDB documents with some given criteria’s, following any of the below given cases
Case 1 Following is the query to get all the documents without a single criterion using $ne operator
db.yourCollectionName.find({yourFieldName:{$ne:"yourValue"}}).pretty();Case 2 Following is the query to get all the documents without two given criterions using $nin operator
db.yourCollectionName.find({yourFieldName:{$nin:["yourValue1","yourValue2"]}}).pretty();Let us first create a collection. Following is the query to create a collection with documents
>db.findAllExceptFromOneOrtwoDemo.insertOne({"StudentName":"Larry","StudentSubjectName":"Java"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5c993d82330fd0aa0d2fe4d2")
}
>db.findAllExceptFromOneOrtwoDemo.insertOne({"StudentName":"Chris","StudentSubjectName":"C++"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5c993d8f330fd0aa0d2fe4d3")
}
>db.findAllExceptFromOneOrtwoDemo.insertOne({"StudentName":"Robert","StudentSubjectName":"C"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5c993d99330fd0aa0d2fe4d4")
}
>db.findAllExceptFromOneOrtwoDemo.insertOne({"StudentName":"David","StudentSubjectName":"Python"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5c993da4330fd0aa0d2fe4d5")
}Following is the query to display all documents from a collection with the help of find() method
> db.findAllExceptFromOneOrtwoDemo.find().pretty();
This will produce the following output
{
"_id" : ObjectId("5c993d82330fd0aa0d2fe4d2"),
"StudentName" : "Larry",
"StudentSubjectName" : "Java"
}
{
"_id" : ObjectId("5c993d8f330fd0aa0d2fe4d3"),
"StudentName" : "Chris",
"StudentSubjectName" : "C++"
}
{
"_id" : ObjectId("5c993d99330fd0aa0d2fe4d4"),
"StudentName" : "Robert",
"StudentSubjectName" : "C"
}
{
"_id" : ObjectId("5c993da4330fd0aa0d2fe4d5"),
"StudentName" : "David",
"StudentSubjectName" : "Python"
}Case 1 Single Criteria
Following is the query
> db.findAllExceptFromOneOrtwoDemo.find({StudentSubjectName:{$ne:"C"}}).pretty();This will produce the following output
{
"_id" : ObjectId("5c993d82330fd0aa0d2fe4d2"),
"StudentName" : "Larry",
"StudentSubjectName" : "Java"
}
{
"_id" : ObjectId("5c993d8f330fd0aa0d2fe4d3"),
"StudentName" : "Chris",
"StudentSubjectName" : "C++"
}
{
"_id" : ObjectId("5c993da4330fd0aa0d2fe4d5"),
"StudentName" : "David",
"StudentSubjectName" : "Python"
}Case 2 Two criterions
Following is the query
>db.findAllExceptFromOneOrtwoDemo.find({StudentSubjectName:{$nin:["C++","Python"]}}).pretty();This will produce the following output
{
"_id" : ObjectId("5c993d82330fd0aa0d2fe4d2"),
"StudentName" : "Larry",
"StudentSubjectName" : "Java"
}
{
"_id" : ObjectId("5c993d99330fd0aa0d2fe4d4"),
"StudentName" : "Robert",
"StudentSubjectName" : "C"
}