How do I sort data in Pymongo?

How do I sort data in Pymongo?

To sort the results of a query in ascending or, descending order pymongo provides the sort() method. To this method, pass a number value representing the number of documents you need in the result.

How do I use descending order in MongoDB?

Set the Sort Order

1. In the Query Bar, click Options.
2. Enter the sort document into the Sort field. To specify ascending order for a field, set the field to 1 in the sort document. To specify descending order for a field, set the field and -1 in the sort documents.
3. Click Find to run the query and view the updated results.

What is Pymongo cursor?

As we already discussed what is a cursor. It is basically a tool for iterating over MongoDB queries. This cursor instance is returned by the find() method. Consider the below example for better understanding.

Which of the following command is used to sort the data in descending order in MongoDB?

To sort documents in MongoDB, you need to use sort() method. The method accepts a document containing a list of fields along with their sorting order. To specify sorting order 1 and -1 are used. 1 is used for ascending order while -1 is used for descending order.

What is sort in MongoDB?

The sort() method specifies the order in which the query returns the matching documents from the given collection. MongoDB can find the result of the sort operation using indexes. If MongoDB does not find sort order using index scanning, then it uses top-k sort algorithm.

Does MongoDB have order?

Sort Consistency MongoDB does not store documents in a collection in a particular order. When sorting on a field which contains duplicate values, documents containing those values may be returned in any order. The easiest way to guarantee this is to include the _id field in your sort query.

How does PyMongo find work?

PyMongo read all data The find method selects documents in a collection or view and returns a cursor to the selected documents. A cursor is a reference to the result set of a query. With the Python for loop, we iterate over the result set.

How do I check if a PyMongo cursor has query results?

How to check if a pymongo cursor has query results

1. count(with_limit_and_skip=False) which (from the description): Returns the number of documents in the results set for this query.
2. retrieved which (from the description): The number of documents retrieved so far.

How do I sort a list in pymongo?

Sorting the documents using python To sort the results of a query in ascending or, descending order pymongo provides the sort () method. To this method, pass a number value representing the number of documents you need in the result. By default, this method sorts the documents in ascending order based on the specified field.

How do I sort a MongoDB dictionary with Python?

When sorting MongoDB documents with Python, method calls to the collection class that returns a dictionary object, like find_one (), will not have any built-in methods like sort ().

How do I sort the result in ascending or descending order?

Use the sort () method to sort the result in ascending or descending order. The sort () method takes one parameter for “fieldname” and one parameter for “direction” (ascending is the default direction). Use the value -1 as the second parameter to sort descending.

How do I sort a tuple in mongo shell?

So, in mongo shell you could do .sort ( {‘field1′:1,’field2’:1}) and the interpreter would sort field1 at first level and field 2 at second level. If this syntax was used in python, there is a chance of sorting by field2 at first level. With tuple, there is no such risk.