In Management Studio please try adding your preferred database name and execute it.
use [yourDatabaseName]
Select * from [dbo].[LAT_POLDATA]
If that gives you an error that view is not in your database
Then follow this
USE [yourDatabasename]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
Create View [dbo].[LAT_POLDATA] AS (
SELECT A.sensorId , A.obDate , A.Value
FROM [Met].[dbo].[POLDATA] AS A
INNER JOIN (
SELECT sensorId , MAX(obDate) AS obDate
FROM [Met].[dbo].[POLDATA]
GROUP BY sensorId
) AS B
ON A.sensorId = B.sensorId
AND A.obDate = B.obDate
)
GO