Inline Table-valued Function in SQL server for optimized result.

Sometime we want to parameterize our view for getting the optimized result, but we cannot pass the parameter to view. In this case we can use inline table valued parameterize function which will return the "Table". We can use this table in joins, sql queries, stored procedures and anywhere like as normal table.
First we will create view and see the result and time taken by view. Then after we will create the function which returns table with a parameter.
Code


View

create view GetAllDatabyCountry
as
select product.productid,product.productname,product.code,product.productPrice
   ,country.countryname,city.cityname
   from product
   left outer join
   country on product.countryid=country.countryid
   left outer join
   city on product.cityId=city.cityId
   

Function

Create function GetDatabyCountryId(@countryId int)
returns table
as
return (
   select product.productid,product.productname,product.code,product.productPrice
   ,country.countryname,city.cityname
   from product 
   left outer join
   country on product.countryid=country.countryid
   left outer join
   city on product.cityId=city.cityId
   where country.countryid=@countryId
  )

Using Function in Query

create procedure getDataByCountryId
@countryId int
as
begin
select getDataBycountry.* from  dbo.GetDatabyCountryId(@countryId) as getDataBycountry
end