Query below finds all views in all databases with their script.
Query
SELECT  DatabaseName,
        TableName AS ViewName,
        RequestText AS Definition
FROM    DBC.TablesV
WHERE   TableKind = 'V'
AND     DatabaseName NOT IN ('All', 'Crashdumps', 'DBC', 'dbcmngr', 
'Default', 'External_AP', 'EXTUSER', 'LockLogShredder', 'PUBLIC', 'SQLJ', 
'Sys_Calendar', 'SysAdmin', 'SYSBAR', 'SYSJDBC', 'SYSLIB', 'SYSSPATIAL', 
'SystemFe', 'SYSUDTLIB', 'SYSUIF', 'TD_SERVER_DB', 'TD_SYSFNLIB', 
'TD_SYSGPL', 'TD_SYSXML', 'TDMaps', 'TDPUSER', 'TDQCD', 'TDStats', 'tdwm')
ORDER BY    DatabaseName,
            ViewName;
Columns
- DatabaseName - database name
- ViewName - view name
- Definition - definition (script) of the view
Rows
- One row represents a view
- Scope of rows: all found views
- Ordered by database & view name
Notes
Query excludes system databases, but this list may not be complete as it depends on the Teradata Database configuration.
Sample results

 
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                 
                                                             
                                                             
                                                             
                                                             
                                                                 
                                                             
                                                             
                                                                 
                                                             
                                                             
                                                             
                                                             Przemek Samojlo
                                                                        Przemek Samojlo
                                 Teradata
                                                                Teradata
                                 SQL Server
                                                                                                SQL Server
                                             Azure SQL Database
                                                                                                Azure SQL Database
                                             Oracle database
                                                                                                Oracle database
                                             Snowflake
                                                                                                Snowflake
                                             Amazon Redshift
                                                                                                Amazon Redshift
                                             IBM Db2
                                                                                                IBM Db2
                                             Vertica
                                                                                                Vertica
                                             PostgreSQL
                                                                                                PostgreSQL
                                             MySQL
                                                                                                MySQL
                                             MariaDB
                                                                                                MariaDB