High-level AQL operations
High-level operations are the core language constructs of the query language to perform actions like finding and returning data, as well as creating and modifying documents
The versatile FOR
operation can iterate over a collection or View, the elements of an array, or traverse a graph
You can use the RETURN
operation to produce the result of a query
The FILTER
operation lets you restrict the results to elements that match arbitrary logical conditions
The SEARCH
operation lets you filter Views, accelerated by the underlying indexes
The SORT
operation allows you to specify one or multiple sort criteria and directions to control the order of query results or the elements of arrays
The LIMIT
operation allows you to reduce the number of results to at most the specified number and optionally skip results using an offset for pagination
You can use the LET
operation to assign an arbitrary value to a variable
The COLLECT
operation can group data by one or multiple grouping criteria, retrieve all distinct values, count how often values occur, and calculate statistical properties efficiently
Aggregate adjacent documents or value ranges with a sliding window to calculate running totals, rolling averages, and other statistical properties
You can use the REMOVE
operation to delete documents from a collection
The UPDATE
operation partially modifies a document with the given attributes, by adding new and updating existing attributes
The REPLACE
operation removes all attributes of a document and sets the given attributes, excluding immutable system attributes
You can use the INSERT
operation to create new documents in a collection
An UPSERT
operation either modifies an existing document, or creates a new document if it does not exist
An AQL query can start with a WITH
operation, listing collections that a query implicitly reads from