How do i get the elements of an array in mongodb?
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➤ Use the Select your language drop-down menu in the upper-right to set the language of the following examples. The following example queries for all documents where the field If, instead, you wish to find an array that contains both the elements The following example queries for all documents where For example, the following operation
queries for all documents where the array When specifying compound conditions on array elements, you can specify the query such that either a single array element meets these condition or any combination of array elements meets the conditions. The following example queries for documents where the Use The
following example queries for documents where the Using dot notation, you can specify query conditions for an element at a particular index or position of the array. The array uses zero-based indexing. NoteWhen querying using dot notation, the field and nested field must be inside quotation marks. The following example queries for all documents where the second element in the
array Use the For additional query examples, see:
Docs Home → MongoDB Manual $arrayElemAt
Returns the element at the specified array index.
The The
If For more information on expressions, see Expressions. For more information on expressions, see Expressions.
A collection named
The following example returns the first and last element in the
The operation returns the following results:
How do I retrieve an array in MongoDB?MongoDB query array operator is used to query documents with an array, we can retrieve array element of data by using query array operator in MongoDB. There are three types of query array operators available in MongoDB, we need to use prefix as $ sign before using query array operator.
How do I pull all elements in an array in MongoDB?The $pullAll operator removes all instances of the specified values from an existing array. Unlike the $pull operator that removes elements by specifying a query, $pullAll removes elements that match the listed values.
How do I select an array element in MongoDB?To query if the array field contains at least one element with the specified value, use the filter {
How do I see elements in MongoDB?Find() Method. In MongoDB, find() method is used to select documents in a collection and return a cursor to the selected documents. Cursor means a pointer that points to a document, when we use find() method it returns a pointer on the selected documents and returns one by one.
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