Query below lists indexed (materialized) views in a database with their references.
Notes
This query doesn't include cross database references. This query lists only references within database.
Query
select distinct schema_name(v.schema_id) as schema_name,
       v.name as view_name,
       schema_name(o.schema_id) as referenced_schema_name,
       o.name as referenced_entity_name,
       o.type_desc as entity_type
from sys.views v
join sys.sql_expression_dependencies d
     on d.referencing_id = v.object_id
     and d.referenced_id is not null
join sys.objects o
     on o.object_id = d.referenced_id
join sys.indexes i 
     on v.object_id = i.object_id
     and i.type = 1
 order by schema_name,
          view_name;
Columns
- schema_name - view schema name
- view_name - view name
- referenced_schema_name - schema of the referenced object
- referenced_entity_name - name of the referenced object
- entity_type - type of referenced entity
- USER_TABLE
- VIEW
 
Rows
- One row represents one reference
- Scope of rows: all references from indexed view to other entities
- Ordered by schema name, view name
Sample results

 
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                 
                                                             
                                                             
                                                             
                                                             
                                                                 
                                                             
                                                             
                                                                 
                                                             
                                                             
                                                             
                                                             Bart Gawrych
                                                                        Bart Gawrych
                                 Azure SQL Database
                                                                Azure SQL Database
                                 SQL Server
                                                                                                SQL Server
                                             Oracle database
                                                                                                Oracle database