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Write a MongoDB query to find all documents in a collection with a specific condition.

Steilla Mitchel20326-Jul-2023

Write a MongoDB query to find all documents in a collection with a specific condition.

mongodbdatabase mongodb 
Updated on 27-Jul-2023
Steilla Mitchel

Steilla Mitchel

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Aryan Kumar

Aryan Kumar

27-Jul-2023

Sure, here is an example of a MongoDB query to find all documents in a collection with the specific condition:

db.collection.find({
  field: value,
});

For example, the following query would find all documents in the users collection where the name field is equal to "John Doe":

db.users.find({
  name: "John Doe",
});

The find() method takes a document as its parameter, which specifies the criteria for the query. The document can contain any number of fields, and each field can have any value. The find() method will return all documents that match the criteria.

In addition to the find() method, MongoDB also provides a number of other query methods, such as findOne(), findAndModify(), and aggregate(). These methods can be used to perform more complex queries.

Here is a table of some of the most common MongoDB query operators:

Operator Description
$eq The eq operator matches documents where the value of a field is equal to a specified value.
$ne The ne operator matches documents where the value of a field is not equal to a specified value.
$gt The gt operator matches documents where the value of a field is greater than a specified value.
$lt The lt operator matches documents where the value of a field is less than a specified value.
$gte The gte operator matches documents where the value of a field is greater than or equal to a specified value.
$lte The lte operator matches documents where the value of a field is less than or equal to a specified value.
$in The in operator matches documents where the value of a field is one of a specified set of values.
$nin The nin operator matches documents where the value of a field is not one of a specified set of values.
$and The and operator matches documents where the value of two or more fields meet the specified conditions.
$or The or operator matches documents where the value of two or more fields meet at least one of the specified conditions.
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