How can i check sql server 'views' dependencies

Is there a way that i can find out wh开发者_如何学Cat base tables are being used by views using a custom query or stored procedure?

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You could use the sys.dm_sql_referenced_entities function to find objects referenced by a specified view:

SELECT DISTINCT 
referenced_schema_name , 
referenced_entity_name 
FROM sys.dm_sql_referenced_entities ('Sales.vSalesPersonSalesByFiscalYears', 'OBJECT');

Also, there is the sys.sql_expression_dependencies system view where you can specify a table name and a type of the referencing object:

SELECT 
referencing_object_name = o.name, 
referencing_object_type_desc = o.type_desc 
FROM sys.sql_expression_dependencies se 
INNER JOIN sys.objects o 
ON se.referencing_id = o.[object_id] 
WHERE referenced_entity_name = 'Person' AND o.type_desc = 'View'

To avoid "manual" work you could also use ApexSQL Clean, a SQL Server tool that can find all internal and external dependencies. In the results pane select an object and see all objects that depend on the selected object, and objects on which the selected object depends on:

You can also filter objects and visualize dependencies:

Disclaimer: I work for ApexSQL as a Support Engineer

Hope this helps

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You could use the sql_dependencies view:

select OBJECT_NAME(referenced_major_id) as DependantObject
from sys.sql_dependencies
where object_id = object_id('YourViewName')

To recursively retrieve dependencies (f.e., if you select from a view, this would find the tables that the other view references):

with deps (child, parent) as (
    select d.object_id, d.referenced_major_id
    from sys.sql_dependencies d
    where d.object_id = object_id('YourViewName')
    union all
    select d.object_id, d.referenced_major_id
    from sys.sql_dependencies d
    inner join deps on deps.parent = d.object_id
)
select OBJECT_NAME(parent)
from deps

This method is not fool-proof. For example, if you rename an object using sp_rename, its dependencies are not updated.

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If this is something you'll be doing often Red Gate SQL Dependency Tracker (no I don't work for them) is a great tool. I think they have a trial period if you want to try it.

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Here's a good explanation:
https://web.archive.org/web/1/http://blogs.techrepublic%2ecom%2ecom/datacenter/?p=277

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You can do that using sys.sql_expression_dependencies in SQL-Server >= 2008 (R1+)
Note: This will take 30 seconds or more.

If you only want the views, remove the scalar + table-valued functions ( 'FN' and 'IF').

A table-valued function can be a dependency of a view and vice-versa, plus the view/tvf may depend on scalar functions.

;WITH TFV_Dependencies AS 
(
    SELECT 
         --OBJECT_SCHEMA_NAME(sysdep.referencing_id) AS Referencing_Schema 
         ReferencingO.object_id AS ReferencingObject_Id 
        ,sysschema.name AS Referencing_Schema 
        ,ReferencingO.name AS Referencing_Object_Name 
        ,sysdep.referenced_schema_name AS Referenced_Schema 
        ,sysdep.referenced_entity_name AS Referenced_Object_Name 
        --,ReferencingO.type
        ,ReferencedO.name AS RefName 
        --,ReferencedO.type AS RefType
    FROM sys.objects as ReferencingO 

    LEFT JOIN sys.schemas AS sysschema 
        ON sysschema.schema_id = ReferencingO.schema_id 

    LEFT JOIN sys.sql_expression_dependencies AS sysdep 
    LEFT JOIN sys.objects as ReferencedO 
        ON ReferencedO.name = sysdep.referenced_entity_name 
        ON sysdep.referencing_id = ReferencingO.object_id 
        AND ReferencingO.name <> sysdep.referenced_entity_name 
        --AND ReferencedO.type <> 'U' 
        AND ReferencedO.type IN ( 'IF', 'FN', 'V' ) 

    WHERE (1=1) 
    --AND ReferencingO.type NOT IN ('PK','F','UQ','SQ','D','IT', 'S')
    --AND ReferencingO.type IN ( 'U', 'V', 'FN', 'IF', 'P') 
    AND ReferencingO.type IN ( 'IF', 'FN', 'V' ) 
    AND ReferencingO.name NOT IN 
    (
         'dt_adduserobject'
        ,'dt_droppropertiesbyid'
        ,'dt_dropuserobjectbyid'
        ,'dt_generateansiname'
        ,'dt_getobjwithprop'
        ,'dt_getobjwithprop_u'
        ,'dt_getpropertiesbyid'
        ,'dt_getpropertiesbyid_u'
        ,'dt_setpropertybyid'
        ,'dt_setpropertybyid_u'
        ,'dt_verstamp006'
        ,'dt_verstamp007'

        ,'sp_helpdiagrams'
        ,'sp_creatediagram'
        ,'sp_alterdiagram'
        ,'sp_renamediagram'
        ,'sp_dropdiagram'

        ,'sp_helpdiagramdefinition'
        ,'fn_diagramobjects'
    ) 

) 

,DependencyGroup AS 
( 
    -- base case 
    SELECT 
         ReferencingObject_Id AS ObjectId 
        ,Referencing_Object_Name AS ObjectName  
        ,Referencing_Schema AS ObjectSchema 
        ,1 AS Lvl 
    FROM TFV_Dependencies 
    WHERE 1=1 
    AND Referenced_Object_Name IS NULL 

    -- recursive case
    UNION ALL 

   SELECT 
         d.ReferencingObject_Id AS ObjectId 
        ,d.Referencing_Object_Name AS ObjectName 
        ,d.Referencing_Schema AS ObjectSchema 
        ,r.Lvl + 1 AS Lvl 
    FROM TFV_Dependencies AS d 
    INNER JOIN DependencyGroup AS r 
        ON r.ObjectName = d.Referenced_Object_Name 
) 
,
CTE AS 
(
    SELECT TOP 999999999999999999 
         MAX(Lvl) AS Lvl 
        ,ObjectId 
        ,ObjectSchema
        ,ObjectName 
        --,'DELETE FROM [' + REPLACE(ObjectName, '''', '''''') + ']; ' AS DeleteCmd 
    FROM DependencyGroup 

    GROUP BY ObjectId, ObjectSchema, ObjectName 
)

SELECT 
     CTE.Lvl
    ,CTE.ObjectSchema AS SPECIFIC_SCHEMA 
    ,CTE.ObjectName AS SPECIFIC_NAME 
    ,sysSqlModules.definition AS ROUTINE_DEFINITION 
FROM CTE 

LEFT JOIN sys.sql_modules AS sysSqlModules 
    ON sysSqlModules.object_id = CTE.ObjectId 

ORDER BY Lvl, ObjectSchema, ObjectName 

OPTION (MAXRECURSION 0)