Query Documents¶

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This page provides examples of query operations using the db.collection.find() method in the mongo shell. The examples on this page use the inventory collection. To populate the inventory collection, run the following:

This page provides examples of query operations using the pymongo.collection.Collection.find() method in the PyMongo Python driver. The examples on this page use the inventory collection. To populate the inventory collection, run the following:

This page provides examples of query operations using the com.mongodb.client.MongoCollection.find method in the MongoDB Java Synchronous Driver.

Tip

The driver provides com.mongodb.client.model.Filters helper methods to facilitate the creation of filter documents. The examples on this page use these methods to create the filter documents.

The examples on this page use the inventory collection. To populate the inventory collection, run the following:

This page provides examples of query operations using the Collection.find() method in the MongoDB Node.js Driver. The examples on this page use the inventory collection. To populate the inventory collection, run the following:

This page provides examples of query operations using the MongoDB\Collection::find() method in the MongoDB PHP Library. The examples on this page use the inventory collection. To populate the inventory collection, run the following:

This page provides examples of query operations using the com.mongodb.reactivestreams.client.MongoCollection.find method in the MongoDB Java Reactive Streams Driver.

The examples on this page use the inventory collection. To populate the inventory collection, run the following:

This page provides examples of query operations using the MongoCollection.Find() method in the MongoDB C# Driver. The examples on this page use the inventory collection. To populate the inventory collection, run the following:

This page provides examples of query operations using the MongoDB::Collection::find() method in the MongoDB Perl Driver. The examples on this page use the inventory collection. To populate the inventory collection, run the following:

This page provides examples of query operations using the Mongo::Collection#find() method in the MongoDB Ruby Driver. The examples on this page use the inventory collection. To populate the inventory collection, run the following:

This page provides examples of query operations using the collection.find() method in the MongoDB Scala Driver. The examples on this page use the inventory collection. To populate the inventory collection, run the following:

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db.inventory.insertMany([
   { item: "journal", qty: 25, size: { h: 14, w: 21, uom: "cm" }, status: "A" },
   { item: "notebook", qty: 50, size: { h: 8.5, w: 11, uom: "in" }, status: "A" },
   { item: "paper", qty: 100, size: { h: 8.5, w: 11, uom: "in" }, status: "D" },
   { item: "planner", qty: 75, size: { h: 22.85, w: 30, uom: "cm" }, status: "D" },
   { item: "postcard", qty: 45, size: { h: 10, w: 15.25, uom: "cm" }, status: "A" }
]);

You can run the operation in the web shell below:

db.inventory.insert_many([
    {"item": "journal",
     "qty": 25,
     "size": {"h": 14, "w": 21, "uom": "cm"},
     "status": "A"},
    {"item": "notebook",
     "qty": 50,
     "size": {"h": 8.5, "w": 11, "uom": "in"},
     "status": "A"},
    {"item": "paper",
     "qty": 100,
     "size": {"h": 8.5, "w": 11, "uom": "in"},
     "status": "D"},
    {"item": "planner",
     "qty": 75, "size": {"h": 22.85, "w": 30, "uom": "cm"},
     "status": "D"},
    {"item": "postcard",
     "qty": 45,
     "size": {"h": 10, "w": 15.25, "uom": "cm"},
     "status": "A"}])

collection.insertMany(asList(
        Document.parse("{ item: 'journal', qty: 25, size: { h: 14, w: 21, uom: 'cm' }, status: 'A' }"),
        Document.parse("{ item: 'notebook', qty: 50, size: { h: 8.5, w: 11, uom: 'in' }, status: 'A' }"),
        Document.parse("{ item: 'paper', qty: 100, size: { h: 8.5, w: 11, uom: 'in' }, status: 'D' }"),
        Document.parse("{ item: 'planner', qty: 75, size: { h: 22.85, w: 30, uom: 'cm' }, status: 'D' }"),
        Document.parse("{ item: 'postcard', qty: 45, size: { h: 10, w: 15.25, uom: 'cm' }, status: 'A' }")
));

db.collection('inventory').insertMany([
  { item: "journal",
    qty: 25,
    size: { h: 14, w: 21, uom: "cm" },
    status: "A"},
  { item: "notebook",
    qty: 50,
    size: { h: 8.5, w: 11, uom: "in" },
    status: "A"},
  { item: "paper",
    qty: 100,
    size: { h: 8.5, w: 11, uom: "in" },
    status: "D"},
  { item: "planner",
    qty: 75, size: { h: 22.85, w: 30, uom: "cm" },
    status: "D"},
  { item: "postcard",
    qty: 45,
    size: { h: 10, w: 15.25, uom: "cm" },
    status: "A"}
])
.then(function(result) {
  // process result
})

$insertManyResult = $db->inventory->insertMany([
    [
        'item' => 'journal', 
        'qty' => 25,
        'size' => ['h' => 14, 'w' => 21, 'uom' => 'cm'],
        'status' => 'A',
    ],
    [
        'item' => 'notebook', 
        'qty' => 50,
        'size' => ['h' => 8.5, 'w' => 11, 'uom' => 'in'],
        'status' => 'A',
    ],
    [
        'item' => 'paper', 
        'qty' => 100,
        'size' => ['h' => 8.5, 'w' => 11, 'uom' => 'in'],
        'status' => 'D',
    ],
    [
        'item' => 'planner', 
        'qty' => 75,
        'size' => ['h' => 22.85, 'w' => 30, 'uom' => 'cm'],
        'status' => 'D',
    ],
    [
        'item' => 'postcard', 
        'qty' => 45,
        'size' => ['h' => 10, 'w' => 15.25, 'uom' => 'cm'],
        'status' => 'A',
    ],
]);

Publisher<Success> insertManyPublisher = collection.insertMany(asList(
        Document.parse("{ item: 'journal', qty: 25, size: { h: 14, w: 21, uom: 'cm' }, status: 'A' }"),
        Document.parse("{ item: 'notebook', qty: 50, size: { h: 8.5, w: 11, uom: 'in' }, status: 'A' }"),
        Document.parse("{ item: 'paper', qty: 100, size: { h: 8.5, w: 11, uom: 'in' }, status: 'D' }"),
        Document.parse("{ item: 'planner', qty: 75, size: { h: 22.85, w: 30, uom: 'cm' }, status: 'D' }"),
        Document.parse("{ item: 'postcard', qty: 45, size: { h: 10, w: 15.25, uom: 'cm' }, status: 'A' }")
));

var documents = new BsonDocument[]
{
    new BsonDocument
    {
        { "item", "journal" },
        { "qty", 25 },
        { "size", new BsonDocument { { "h", 14 }, { "w", 21 }, {  "uom", "cm"} } },
        { "status", "A" }
    },
    new BsonDocument
    {
        { "item", "notebook" },
        { "qty", 50 },
        { "size", new BsonDocument { { "h",  8.5 }, { "w", 11 }, {  "uom", "in"} } },
        { "status", "A" }
    },
    new BsonDocument
    {
        { "item", "paper" },
        { "qty", 100 },
        { "size", new BsonDocument { { "h",  8.5 }, { "w", 11 }, {  "uom", "in"} } },
        { "status", "D" }
    },
    new BsonDocument
    {
        { "item", "planner" },
        { "qty", 75 },
        { "size", new BsonDocument { { "h", 22.85 }, { "w", 30  }, {  "uom", "cm"} } },
        { "status", "D" }
    },
    new BsonDocument
    {
        { "item", "postcard" },
        { "qty", 45 },
        { "size", new BsonDocument { { "h", 10 }, { "w", 15.25 }, {  "uom", "cm"} } },
        { "status", "A" }
    },
};
collection.InsertMany(documents);

$db->coll("inventory")->insert_many(
    [
        {
            item   => "journal",
            qty    => 25,
            size   => { h => 14, w => 21, uom => "cm" },
            status => "A"
        },
        {
            item   => "notebook",
            qty    => 50,
            size   => { h => 8.5, w => 11, uom => "in" },
            status => "A"
        },
        {
            item   => "paper",
            qty    => 100,
            size   => { h => 8.5, w => 11, uom => "in" },
            status => "D"
        },
        {
            item   => "planner",
            qty    => 75,
            size   => { h => 22.85, w => 30, uom => "cm" },
            status => "D"
        },
        {
            item   => "postcard",
            qty    => 45,
            size   => { h => 10, w => 15.25, uom => "cm" },
            status => "A"
        }
    ]
);

client[:inventory].insert_many([{ item: 'journal',
                                  qty: 25,
                                  size: { h: 14, w: 21, uom: 'cm' },
                                  status: 'A' },
                                { item: 'notebook',
                                  qty: 50,
                                  size: { h: 8.5, w: 11, uom: 'in' },
                                  status: 'A' },
                                { item: 'paper',
                                  qty: 100,
                                  size: { h: 8.5, w: 11, uom: 'in' },
                                  status: 'D' },
                                { item: 'planner',
                                  qty: 75,
                                  size: { h: 22.85, w: 30, uom: 'cm' },
                                  status: 'D' },
                                { item: 'postcard',
                                  qty: 45,
                                  size: { h: 10, w: 15.25, uom: 'cm' },
                                  status: 'A' }
                               ])

collection.insertMany(Seq(
  Document("""{ item: "journal", qty: 25, size: { h: 14, w: 21, uom: "cm" }, status: "A" }"""),
  Document("""{ item: "notebook", qty: 50, size: { h: 8.5, w: 11, uom: "in" }, status: "A" }"""),
  Document("""{ item: "paper", qty: 100, size: { h: 8.5, w: 11, uom: "in" }, status: "D" }"""),
  Document("""{ item: "planner", qty: 75, size: { h: 22.85, w: 30, uom: "cm" }, status: "D" }"""),
  Document("""{ item: "postcard", qty: 45, size: { h: 10, w: 15.25, uom: "cm" }, status: "A" }""")
)).execute()

Select All Documents in a Collection¶

To select all documents in the collection, pass an empty document as the query filter parameter to the find method. The query filter parameter determines the select criteria:

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db.inventory.find( {} )

cursor = db.inventory.find({})

FindIterable<Document> findIterable = collection.find(new Document());

var cursor = db.collection('inventory').find({});

$cursor = $db->inventory->find([]);

FindPublisher<Document> findPublisher = collection.find(new Document());

var filter = Builders<BsonDocument>.Filter.Empty;
var result = collection.Find(filter).ToList();

$cursor = $db->coll("inventory")->find( {} );

client[:inventory].find({})

var findObservable = collection.find(Document())

These operation corresponds to the following SQL statement:

SELECT * FROM inventory

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For more information on the syntax of the method, see find().

For more information on the syntax of the method, see com.mongodb.client.MongoCollection.find.

For more information on the syntax of the method, see find().

For more information on the syntax of the method, see find().

For more information on the syntax of the method, see com.mongodb.reactivestreams.client.MongoCollection.find.

For more information on the syntax of the method, see Find().

For more information on the syntax of the method, see find().

For more information on the syntax of the method, see collection.find().

Specify Equality Condition¶

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To specify equality conditions, use <field>:<value> expressions in the query filter document:

{ <field1>: <value1>, ... }

To specify equality conditions, use <field>:<value> expressions in the query filter document:

{ <field1>: <value1>, ... }

To specify equality conditions, use the com.mongodb.client.model.Filters.eq_ method to create the query filter document:

and(eq( <field1>, <value1>), eq( <field2>, <value2>) ...)

To specify equality conditions, use <field>:<value> expressions in the query filter document:

{ <field1>: <value1>, ... }

To specify equality conditions, use <field> => <value> expressions in the query filter document:

[ <field1> => <value1>, ... ]

To specify equality conditions, use the com.mongodb.client.model.Filters.eq method to create the query filter document:

and(eq( <field1>, <value1>), eq( <field2>, <value2>) ...)

To specify equality conditions, construct a filter using the Eq method:

Builders<BsonDocument>.Filter.Eq(<field>, <value>);

To specify equality conditions, use <field> => <value> expressions in the query filter document:

{ <field1> => <value1>, ... }

To specify equality conditions, use <field> => <value> expressions in the query filter document:

{ <field1> => <value1>, ... }

To specify equality conditions, use the com.mongodb.client.model.Filters.eq_ method to create the query filter document:

and(equal(<field1>, <value1>), equal(<field2>, <value2>) ...)

The following example selects from the inventory collection all documents where the status equals "D":

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db.inventory.find( { status: "D" } )

cursor = db.inventory.find({"status": "D"})

findIterable = collection.find(eq("status", "D"));

var cursor = db.collection('inventory').find({ status: "D" });

$cursor = $db->inventory->find(['status' => 'D']);

findPublisher = collection.find(eq("status", "D"));

var filter = Builders<BsonDocument>.Filter.Eq("status", "D");
var result = collection.Find(filter).ToList();

$cursor = $db->coll("inventory")->find( { status => "D" } );

client[:inventory].find(status: 'D')

findObservable = collection.find(equal("status", "D"))

This operation corresponds to the following SQL statement:

SELECT * FROM inventory WHERE status = "D"

Specify Conditions Using Query Operators¶

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A query filter document can use the query operators to specify conditions in the following form:

{ <field1>: { <operator1>: <value1> }, ... }

A query filter document can use the query operators to specify conditions in the following form:

{ <field1>: { <operator1>: <value1> }, ... }

In addition to the equality condition, MongoDB provides various query operators to specify filter conditions. Use the com.mongodb.client.model.Filters helper methods to facilitate the creation of filter documents. For example:

and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))

A query filter document can use the query operators to specify conditions in the following form:

{ <field1>: { <operator1>: <value1> }, ... }

A query filter document can use the query operators to specify conditions in the following form:

[ <field1> => [ <operator1> => <value1> ], ... ]

In addition to the equality condition, MongoDB provides various query operators to specify filter conditions. Use the com.mongodb.client.model.Filters helper methods to facilitate the creation of filter documents. For example:

and(gte(<field1>, <value1>), lt(<field2>, <value2>), eq(<field3>, <value3>))

In addition to the equality filter, MongoDB provides various query operators to specify filter conditions. Use the FilterDefinitionBuilder methods to create a filter document. For example:

var builder = Builders<BsonDocument>.Filter;
builder.And(builder.Eq(<field1>, <value1>), builder.Lt(<field2>, <value2>));

A query filter document can use the query operators to specify conditions in the following form:

{ <field1> => { <operator1> => <value1> }, ... }

A query filter document can use the query operators to specify conditions in the following form:

{ <field1> => { <operator1> => <value1> }, ... }

In addition to the equality condition, MongoDB provides various query operators to specify filter conditions. Use the com.mongodb.client.model.Filters_ helper methods to facilitate the creation of filter documents. For example:

and(gte(<field1>, <value1>), lt(<field2>, <value2>), equal(<field3>, <value3>))

The following example retrieves all documents from the inventory collection where status equals either "A" or "D":

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db.inventory.find( { status: { $in: [ "A", "D" ] } } )

cursor = db.inventory.find({"status": {"$in": ["A", "D"]}})

findIterable = collection.find(in("status", "A", "D"));

var cursor = db.collection('inventory').find({ 
  status: { $in: ["A", "D"] }
});

$cursor = $db->inventory->find(['status' => ['$in' => ['A', 'D']]]);

findPublisher = collection.find(in("status", "A", "D"));

var filter = Builders<BsonDocument>.Filter.In("status", new[] { "A", "D" });
var result = collection.Find(filter).ToList();

$cursor = $db->coll("inventory")->find( { status => { '$in' => [ "A", "D" ] } } );

client[:inventory].find(status: { '$in' => [ 'A', 'D' ]})

findObservable = collection.find(in("status", "A", "D"))

Although you can express this query using the $or operator, use the $in operator rather than the $or operator when performing equality checks on the same field.

The operation corresponds to the following SQL statement:

SELECT * FROM inventory WHERE status in ("A", "D")

Refer to the Query and Projection Operators document for the complete list of MongoDB query operators.

Specify `AND` Conditions¶

A compound query can specify conditions for more than one field in the collection’s documents. Implicitly, a logical AND conjunction connects the clauses of a compound query so that the query selects the documents in the collection that match all the conditions.

The following example retrieves all documents in the inventory collection where the status equals "A" and qty is less than ($lt) 30:

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db.inventory.find( { status: "A", qty: { $lt: 30 } } )

cursor = db.inventory.find({"status": "A", "qty": {"$lt": 30}})

findIterable = collection.find(and(eq("status", "A"), lt("qty", 30)));

var cursor = db.collection('inventory').find({ 
  status: "A", 
  qty: { $lt: 30 }
});

$cursor = $db->inventory->find([
    'status' => 'A',
    'qty' => ['$lt' => 30],
]);

findPublisher = collection.find(and(eq("status", "A"), lt("qty", 30)));

var builder = Builders<BsonDocument>.Filter;
var filter = builder.And(builder.Eq("status", "A"), builder.Lt("qty", 30));
var result = collection.Find(filter).ToList();

$cursor = $db->coll("inventory")->find( { status => "A", qty => { '$lt' => 30 } } );

client[:inventory].find(status: 'A', qty: { '$lt' => 30 })

findObservable = collection.find(and(equal("status", "A"), lt("qty", 30)))

The operation corresponds to the following SQL statement:

SELECT * FROM inventory WHERE status = "A" AND qty < 30

See comparison operators for other MongoDB comparison operators.

Specify `OR` Conditions¶

Using the $or operator, you can specify a compound query that joins each clause with a logical OR conjunction so that the query selects the documents in the collection that match at least one condition.

The following example retrieves all documents in the collection where the status equals "A" or qty is less than ($lt) 30:

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db.inventory.find( { $or: [ { status: "A" }, { qty: { $lt: 30 } } ] } )

cursor = db.inventory.find(
    {"$or": [{"status": "A"}, {"qty": {"$lt": 30}}]})

findIterable = collection.find(or(eq("status", "A"), lt("qty", 30)));

var cursor = db.collection('inventory').find({ 
  $or: [ {status: "A" }, { qty: { $lt: 30 } } ]
});

$cursor = $db->inventory->find([
    '$or' => [
        ['status' => 'A'],
        ['qty' => ['$lt' => 30]],
    ],
]);

findPublisher = collection.find(or(eq("status", "A"), lt("qty", 30)));

var builder = Builders<BsonDocument>.Filter;
var filter = builder.Or(builder.Eq("status", "A"), builder.Lt("qty", 30));
var result = collection.Find(filter).ToList();

$cursor = $db->coll("inventory")->find(
    { '$or' => [ { status => "A" }, { qty => { '$lt' => 30 } } ] }
);

client[:inventory].find('$or' => [{ status: 'A' },
                                  { qty: { '$lt' => 30 } }
                                 ])

findObservable = collection.find(or(equal("status", "A"), lt("qty", 30)))

The operation corresponds to the following SQL statement:

SELECT * FROM inventory WHERE status = "A" OR qty < 30

Note

Queries which use comparison operators are subject to Type Bracketing.

Specify `AND` as well as `OR` Conditions¶

In the following example, the compound query document selects all documents in the collection where the status equals "A" and either qty is less than ($lt) 30 or item starts with the character p:

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db.inventory.find( {
     status: "A",
     $or: [ { qty: { $lt: 30 } }, { item: /^p/ } ]
} )

cursor = db.inventory.find({
    "status": "A",
    "$or": [{"qty": {"$lt": 30}}, {"item": {"$regex": "^p"}}]})

findIterable = collection.find(
        and(eq("status", "A"),
                or(lt("qty", 30), regex("item", "^p")))
);

var cursor = db.collection('inventory').find({ 
  status: "A",
  $or: [ { qty: { $lt: 30 } }, { item: { $regex: "^p" } } ]
});

$cursor = $db->inventory->find([
    'status' => 'A',
    '$or' => [
        ['qty' => ['$lt' => 30]],
        // Alternatively: ['item' => new \MongoDB\BSON\Regex('^p')]
        ['item' => ['$regex' => '^p']],
    ],
]);

findPublisher = collection.find(
        and(eq("status", "A"),
                or(lt("qty", 30), regex("item", "^p")))
);

var builder = Builders<BsonDocument>.Filter;
var filter = builder.And(
    builder.Eq("status", "A"),
    builder.Or(builder.Lt("qty", 30), builder.Regex("item", new BsonRegularExpression("^p"))));
var result = collection.Find(filter).ToList();

$cursor = $db->coll("inventory")->find(
    {
        status => "A",
        '$or'  => [ { qty => { '$lt' => 30 } }, { item => { '$regex' => "^p" } } ]
    }
);

client[:inventory].find(status: 'A',
                        '$or' => [{ qty: { '$lt' => 30 } },
                                  { item: { '$regex' => BSON::Regexp::Raw.new('^p') } }
                        ])

findObservable = collection.find(and(
  equal("status", "A"),
  or(lt("qty", 30), regex("item", "^p")))
)

The operation corresponds to the following SQL statement:

SELECT * FROM inventory WHERE status = "A" AND ( qty < 30 OR item LIKE "p%")

Note

MongoDB supports regular expressions $regex queries to perform string pattern matches.

Additional Query Tutorials¶

For additional query examples, see:

Behavior¶

Cursor¶

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The db.collection.find() method returns a cursor to the matching documents.

The pymongo.collection.Collection.find() method returns a cursor to the matching documents. See the PyMongo documentation for iterating over a cursor.

The com.mongodb.client.MongoCollection.find method returns an instance of the com.mongodb.client.FindIterable interface.

The Collection.find() method returns a cursor.

The MongoDB\Collection::find() method returns a cursor to the matching documents. See the MongoDB PHP Library documentation for iterating over a cursor.

com.mongodb.reactivestreams.client.MongoCollection.find returns an instance of the com.mongodb.reactivestreams.client.FindPublisher interface.

The MongoCollection.Find() method returns a cursor to the matching documents. See the MongoDB C# driver documentation for iterating over a cursor.

The MongoDB::Collection::find() method returns a cursor to the matching documents. See the MongoDB Perl driver documentation for iterating over a cursor.

The Mongo::Collection#find() method returns a CollectionView, which is an Enumerable. A Cursor is created when the View is enumerated; for example, by calling #to_a() or #each(). You can also get an Enumerator by calling #to_enum() on the View. See the Ruby driver API documentation for iterating over a cursor.

The collection.find() method returns the find Observable.

Read Isolation¶

New in version 3.2.

For reads to replica sets and replica set shards, read concern allows clients to choose a level of isolation for their reads. For more information, see Read Concern.

Additional Methods¶

The following methods can also read documents from a collection:

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db.collection.findOne
In aggregation pipeline, the $match pipeline stage provides access to MongoDB queries.

Note

The db.collection.findOne() method also performs a read operation to return a single document. Internally, the db.collection.findOne() method is the db.collection.find() method with a limit of 1.

pymongo.collection.Collection.find_one()
In aggregation pipeline, the $match pipeline stage provides access to MongoDB queries. See the PyMongo Aggregation Examples.

Note

The pymongo.collection.Collection.find_one() method also performs a read operation to return a single document. Internally, the pymongo.collection.Collection.find_one() method is the pymongo.collection.Collection.find() method with a limit of 1.

In aggregation pipeline, the $match pipeline stage provides access to MongoDB queries. See the Java Synchronous Driver Aggregation Examples.

Collection.findOne()
In aggregation pipeline, the $match pipeline stage provides access to MongoDB queries. See the MongoDB Node.js Driver’s aggregation tutorial.

Note

The Collection.findOne() method also performs a read operation to return a single document. Internally, the Collection.findOne() method is the Collection.find() method with a limit of 1.

MongoDB\Collection::findOne()
In aggregation pipeline, the $match pipeline stage provides access to MongoDB queries. See the MongoDB PHP Library’s aggregation example.

Note

The MongoDB\Collection::findOne() method also performs a read operation to return a single document. Internally, the MongoDB\Collection::findOne() method is the MongoDB\Collection::find() method with a limit of 1.

In aggregation pipeline, the $match pipeline stage provides access to MongoDB queries. See com.mongodb.reactivestreams.client.MongoCollection.aggregate for more information.

MongoCollection.FindOne()
In aggregation pipeline, the $match pipeline stage provides access to MongoDB queries. See the MongoDB C# driver’s LINQ documentation.

Note

The MongoCollection.FindOne() method also performs a read operation to return a single document. Internally, the MongoCollection.FindOne() method is the MongoCollection.Find() method with a limit of 1.

MongoDB::Collection::find_one()
In aggregation pipeline, the $match pipeline stage provides access to MongoDB queries. See the MongoDB Perl driver’s aggregation examples.

Note

The MongoDB::Collection::find_one() method also performs a read operation to return a single document. Internally, the MongoDB::Collection::find_one() method is the MongoDB::Collection::find() method with a limit of 1.

In aggregation pipeline, the $match pipeline stage provides access to MongoDB queries. See the MongoDB Ruby driver’s aggregation examples.

In aggregation pipeline, the $match pipeline stage provides access to MongoDB queries. See the MongoDB Scala driver’s aggregate method.

← Insert Methods Query on Embedded/Nested Documents →

Query Documents¶

Select All Documents in a Collection¶

Specify Equality Condition¶

Specify Conditions Using Query Operators¶

Specify AND Conditions¶

Specify OR Conditions¶

Specify AND as well as OR Conditions¶

Additional Query Tutorials¶

Behavior¶

Cursor¶

Read Isolation¶

Additional Methods¶

Specify `AND` Conditions¶

Specify `OR` Conditions¶

Specify `AND` as well as `OR` Conditions¶