How to create one procedure which can drop and create materialized view

Question

Hi,
I want to create one pl/sql procedure which can first drop materialized view CATEGORY_PK and after that create same materialized view CATEGORY_PK.
programme is as follows:
DROP MATERIALIZED VIEW CATEGORY_PK;
CREATE MATERIALIZED VIEW CATEGORY_PK REFRESH FORCE WITH PRIMARY KEY AS
SELECT cav1.ownerid AS categoryid, p.uuid AS productid ,p.domainID AS productdomainid,pav.stringvalue AS NAME
     ,pav2.stringvalue AS ID, pav3.stringvalue AS SHORT
FROM product p, product_av pav, catalogcategory_av cav1, catalogcategory_av cav2,product_av pav2,product_av pav3
WHERE
cav1.NAME = 'PRODUCT_BINDING_ATTRIBUTE' AND
cav2.NAME = 'PRODUCT_BINDING_VALUE' AND
cav1.ownerid = cav2.ownerid AND
p.uuid = pav.ownerid AND
          p.uuid = pav2.ownerid AND
          p.uuid = pav3.ownerid AND
pav.NAME = cav1.stringvalue AND
          pav2.NAME = cav1.stringvalue AND
          pav2.NAME = cav1.stringvalue AND
pav.stringvalue = cav2.stringvalue AND
          pav2.stringvalue = cav2.stringvalue AND
          pav3.stringvalue = cav2.stringvalue
UNION
SELECT catalogcategoryid AS categoryid, productid, repdomainid AS productdomainid,pav1.stringvalue AS NAME
     ,pav2.stringvalue AS ID, pav3.stringvalue AS SHORT
FROM productcategoryassignment ,product_av pav1,product_av pav2,product_av pav3
     WHERE pav1.ownerid=productid
     AND pav2.ownerid=productid
     AND pav3.ownerid=productid
     AND pav1.NAME='name'
     AND pav2.NAME='productID'
     AND pav3.NAME='shortDescription';

Answer 1

user498566 wrote:
I want to create one pl/sql procedure which can first drop materialized view CATEGORY_PK and after that create same materialized view CATEGORY_PK.That sounds like a waste of time and resources. What do you hope to achieve by this? A refresh? If so, a simple refresh of the old materialized view will do.
If you truly want to continue this road, you'll have to use the EXECUTE IMMEDIATE command to execute DDL commands from within PL/SQL.
Regards,
Rob.