AQL Fundamentals
- AQL Syntax explains the structure of the AQL language.
 - Data Types describes the primitive and compound data types supported by AQL.
 - Bind Parameters: AQL supports the usage of bind parameters. This allows to separate the query text from literal values used in the query.
 - Type and value order: AQL uses a set of rules (using values and types) for equality checks and comparisons.
 - Accessing Data from Collections: describes the impact of non-existent or null attributes for selection queries.
 - Query Results: the result of an AQL query is an array of values.
 - Query Errors: errors may arise from the AQL parsing or execution.
 - Limitations: known limitations for AQL queries.