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

Question

Aryan Kumar · Answer

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.

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

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