Returns whether the specified materialized view can be defined as immediate.

Syntax

sa_materialized_view_can_be_immediate( 
view_name 
, owner_name
)

Arguments

Remarks

There are restrictions on whether the specified manual view can be changed to an immediate view. Use this system procedure to determine whether the change is permitted. For a list of the additional restrictions for creating immediate views, see Additional restrictions for immediate views.

The sa_materialized_view_can_be_immediate system procedure returns the following information for the specified materialized view.

Each row in the result set corresponds to a single SQLSTATE returned for a view. Consequently, if the materialized view definition violates more than one restriction, the results include multiple rows for the view.

You can combine the output of this system procedure with the output of the sa_materialized_view_info system procedure to get information on the status of views and whether they can be made immediate. See the Example section of sa_materialized_view_info system procedure.

Permissions

DBA authority, or execute permissions on DBO owned procedures.

See also

• Changing the refresh type for a materialized view
• Additional restrictions for immediate views
• sa_materialized_view_info system procedure

Side effects

All metadata for the specified materialized view, and all dependencies, are loaded into the server cache.

Example

Execute the following statements to create a manual view, view10, and refresh it:

CREATE MATERIALIZED VIEW view10
   AS (SELECT C.ID, C.Surname, sum(P.UnitPrice) as revenue, C.CompanyName, SO.OrderDate
         FROM Customers C, SalesOrders SO, SalesOrderItems SOI, Products P
         WHERE C.ID = SO.CustomerID
         AND SO.ID = SOI.ID
         AND P.ID = SOI.ProductID
         GROUP BY C.ID, C.Surname, C.CompanyName, SO.OrderDate);
REFRESH MATERIALIZED VIEW view10;

Use the following query to find the reasons why view10 cannot be changed to an immediate view:

SELECT SQLStateVal AS "SQLstate", ErrorMessage AS Description 
   FROM sa_materialized_view_can_be_immediate( 'view10', 'DBA' ) 
   ORDER BY SQLSTATE;