Query below lists views in a database with their definition.
Query
select u.view_schema as schema_name,
       u.view_name,
       u.table_schema as referenced_table_schema,
       u.table_name as referenced_table_name,
       v.view_definition
from information_schema.view_table_usage u
join information_schema.views v 
     on u.view_schema = v.table_schema
     and u.view_name = v.table_name
where u.table_schema not in ('information_schema', 'pg_catalog')
order by u.view_schema,
         u.view_name;
Columns
- schema_name - view schema name
- view_name - view name
- referenced_table_schema - table schema name that view is referring to
- referenced_table_name - table name that view is referring to
- view_definition - view definition script
Rows
- One row represents one view reference
- Scope of rows: all views references in database
- Ordered by view schema name, view name
Sample results

 
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                 
                                                             
                                                             
                                                             
                                                             
                                                                 
                                                             
                                                             
                                                                 
                                                             
                                                             
                                                             
                                                             Bart Gawrych
                                                                        Bart Gawrych
                                 PostgreSQL
                                                                PostgreSQL
                                 SQL Server
                                                                                                SQL Server
                                             Azure SQL Database
                                                                                                Azure SQL Database
                                             Oracle database
                                                                                                Oracle database
                                             Amazon Redshift
                                                                                                Amazon Redshift
                                             IBM Db2
                                                                                                IBM Db2
                                             MySQL
                                                                                                MySQL