Check which fields are covered by one set of views and not another

Question

Hi all,
I am having some problems formulating a query to find the set of fields that are covered by one set of views and not another.
I won't paste the abomination I'm currently butting heads with but basically I'm using INFORMATION_SCHEMA.VIEW_COLUMN_USAGE
I need underlying field name (not alias), view that includes it and table that it comes from.
Any pointers would be greatly helpful

Answer 1

Hi, with the script below you can find all the dependencies of all view
USE AdventureWorks2012;
GO
SELECT OBJECT_NAME(referencing_id) AS referencing_entity_name,
o.type,
o.type_desc AS referencing_desciption,
COALESCE(COL_NAME(referencing_id, referencing_minor_id), '(n/a)') AS referencing_minor_id,
referencing_class_desc, referenced_class_desc,
referenced_server_name, referenced_database_name, referenced_schema_name,
referenced_entity_name,
COALESCE(COL_NAME(referenced_id, referenced_minor_id), '(n/a)') AS referenced_column_name,
is_caller_dependent, is_ambiguous
FROM sys.sql_expression_dependencies AS sed
INNER JOIN sys.objects AS o ON sed.referencing_id = o.object_id
WHERE
o.[type] = N'V'
--and referencing_id = OBJECT_ID(N'Sales.vSalesPerson')
GO
You can specify the name of a view in the WHERE clause
hope this will help you
Questo post è fornito "così com'è". Non conferisce garanzie o diritti di alcun tipo. Ricorda di usare la funzione "segna come risposta" per i post che ti hanno aiutato a risolvere il problema e "deseleziona
come risposta" quando le risposte segnate non sono effettivamente utili. Questo è particolarmente utile per altri utenti che leggono il thread, alla ricerca di soluzioni a problemi similari. ENG: This posting is provided "AS IS"
with no warranties, and confers no rights. Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. Please Vote This As
Helpful if it helps to solve your issue. This can be beneficial to other community members reading the thread.