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Find in mongodb shell

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The examples on this page use the inventory collection. To populate the inventory collection, run the following:. Populate the inventory collection with the following documents:. The driver provides com. Filters helper methods to facilitate the creation of filter documents. The examples on this page use these methods to create the filter documents.

SEE VIDEO BY TOPIC: MongoDB: Using the Mongo Shell

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SEE VIDEO BY TOPIC: Database, Collections, Documents: MongoDB

MongoDB find()

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This page provides examples of query operations using the db. 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 MongoDB Compass.

Populate the inventory collection with the following documents:. This page provides examples of query operations using the pymongo. This page provides examples of query operations using the com.

The driver provides com. Filters helper methods to facilitate the creation of filter documents. The examples on this page use these methods to create the filter documents. This page provides examples of query operations using the Collection. This page provides examples of query operations using the motor. This page provides examples of query operations using the MongoCollection. This page provides examples of query operations using the 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:. To select all documents in the collection, pass an empty document as the query filter parameter to the query bar. For more information on the syntax of the method, see find.

For more information on the syntax of the method, see com. For more information on the syntax of the method, see Find. For more information on the syntax of the method, see collection. To specify equality conditions, use the com. To specify equality conditions, construct a filter using the Eq method:. The following example selects from the inventory collection all documents where the status equals "D" :.

Copy the following filter into the Compass query bar and click Find :. A query filter document can use the query operators to specify conditions in the following form:. In addition to the equality condition, MongoDB provides various query operators to specify filter conditions. Use the com. For example:. In addition to the equality filter, MongoDB provides various query operators to specify filter conditions. Use the FilterDefinitionBuilder methods to create a filter document. The following example retrieves all documents from the inventory collection where status equals either "A" or "D" :.

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. See comparison operators for other MongoDB comparison operators.

Queries which use comparison operators are subject to Type Bracketing. The db. The MongoDB Compass Find operation opens a cursor to the matching documents of the collection based on the find query.

The pymongo. See the PyMongo documentation for iterating over a cursor. The com. FindIterable interface. The Collection. 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.

See the Ruby driver API documentation for iterating over a cursor. The collection. Find function returns a Cursor to the matching documents. See the Cursor documentation for more information. 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. Internally, the db. In addition to filter , MongoDB Compass also allows the following options to be passed to the query bar:.

Internally, the pymongo. Internally, the Collection. 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. Tip The driver provides com.

InsertMany documents ;. InsertMany context. Background , docs. Find filter. ToList ;. Find context. Background , bson.

To specify equality conditions, construct a filter using the Eq method: copy. Copy the following filter into the Compass query bar and click Find : copy. A query filter document can use the query operators to specify conditions in the following form: copy. For example: copy. Filter ; builder. And builder. Eq "status" , "A" , builder. Or builder. Note Queries which use comparison operators are subject to Type Bracketing.

Lt "qty" , 30 , builder. Note The db. Additional Options In addition to filter , MongoDB Compass also allows the following options to be passed to the query bar: Project Specify which fields to return in the resulting data. Sort Specify the sort order of the returned documents. Skip Specify the first n-number of document to skip before returning the result set. Limit Specify the maximum number of documents to return. Additional Methods The following methods can also read documents from a collection: pymongo.

See the PyMongo Aggregation Examples. Note The pymongo. Additional Methods The following methods can also read documents from a collection: Collection.

See the MongoDB Node. Note The Collection. See com. Additional Methods The following methods can also read documents from a collection: MongoCollection.

Note The MongoCollection. See Collection.

MongoDB Query Document Using Find() Method (Examples)

There are totally six methods available in Mongo DB by which we can fetch particular records. Find method consists of two parameters by which we can fetch a particular record. If we don't use these two parameters then the find method will return all the documents available within the MongoDB collection. Query — This is an optional parameter which defines the selection criteria.

Executes a query and returns the first batch of results and the cursor id, from which the client can construct a cursor. Rather than run the find command directly, you can use the db.

Although these methods use JavaScript, most interactions with MongoDB do not use JavaScript but use an idiomatic driver in the language of the interacting application. For details on specific methods, including syntax and examples, click on the specific method to go to its reference page. The mongo client-side field level encryption methods require a database connection with client-side field level encryption enabled. If the current database connection was not initiated with client-side field level encryption enabled, either:.

MongoDB Query Document using find() with Example

By default, queries in MongoDB return all fields in matching documents. To limit the amount of data that MongoDB sends to applications, you can include a projection document to specify or restrict fields to return. This page provides examples of query operations with projection using the db. The examples on this page use the inventory collection. To populate the inventory collection, run the following:. This page provides examples of query operations with projection using MongoDB Compass. Populate the inventory collection with the following documents:. This page provides examples of query operations with projection using the pymongo. This page provides examples of query operations with projection using the com. The driver provides com.

This page provides examples of query operations using the db. 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 MongoDB Compass.

You can retrieve previous commands issued in the mongo shell with the up and down arrow keys.

This document provides an overview of accessing this help information. To see the list of options and help for starting the mongo shell, use the --help option from the command line:. To see the list of help, in the mongo shell, type help :. In the mongo shell:.

This page documents the mongo shell method, and does not refer to the MongoDB Node. Selects documents in a collection or view and returns a cursor to the selected documents. The projection parameter determines which fields are returned in the matching documents.

This page documents the mongo shell method, and does not refer to the MongoDB Node. Specifies the order in which the query returns matching documents. You must apply sort to the cursor before retrieving any documents from the database. The sort method has the following parameter:. The sort parameter contains field and value pairs, in the following form:. The sort document can specify ascending or descending sort on existing fields or sort on computed metadata.

This page provides examples of query operations on array fields using the db. The examples on this page use the inventory collection. To populate the inventory collection, run the following:. This page provides examples of query operations on array fields using MongoDB Compass. Populate the inventory collection with the following documents:. This page provides examples of query operations on array fields using the pymongo.

Apr 23, - All of our code will be run in the MongoDB JavaScript command shell. Consider that we have a collection named 'Employee' in our MongoDB.

You can use the mongo shell to query and update data as well as perform administrative operations. The mongo shell is included as part of the MongoDB Server installation. MongoDB also provides the mongo shell as a standalone package. To download the standalone mongo shell package:.

The method of fetching or getting data from a MongoDB database is carried out by using queries. MongoDB provides a function called db. During the course of this tutorial, you will see how this function is used in various ways to achieve the purpose of document retrieval.

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I have written a very simple script to print the count of some states of a worker script. However I cannot print error messages which I had queried and projected with find.

There are two ways to find an item from the MongoDB database.

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