Syntax error when creating view - mysql

Question

I have the following little bit of MySQL code
CREATE VIEW UserResults AS
SELECT E.No, E. Description
, Count(R.RID WHERE $Username= R.Owner)
, Count(R.RID WHERE $Username= R.Owner AND Status==’Active’ )
FROM ETable AS E, RTABLE as R
ORDER BY E.No)
but MySQL is returning a syntax error that I can't seem to find. Also when I have created this view, how can I make it viewable?

Answer 1

You have an extra ending parenthesis, which should be removed
Views should not have ORDER BY.
The WHERE clause should not be in the middle of the SELECT, you will need to use a CASE.
You are returning a Cartesian product instead of joining your tables together, this may provide more results than you want/expect.
The R.RID in the THEN block of the CASE statements may need to be a 1, not entirely sure what you hoped to get from those COUNT statements you originally had.
I tried to figure out what you were trying to do, and I think this is it:
CREATE VIEW UserResults AS
SELECT E.No, E.Description
, SUM(CASE
WHEN $Username = R.Owner THEN R.RID
ELSE 0
END) AS SumOfOwner
, SUM(CASE
WHEN $Username = R.Owner AND Status = 'Active' THEN R.RID
ELSE 0
END) AS SumOfOwnerAndActive
FROM ETable AS E
INNER JOIN RTABLE as R ON E.No = R.ENo
GROUP BY E.No, E.Description

Answer 2

The Subquery which you create the view from is wrong:
SELECT E.No, E. Description, Count(R.RID WHERE $Username= R.Owner), Count(R.RID WHERE $Username= R.Owner AND Status==’Active’ ) FROM ETable AS E, RTABLE as R ORDER BY E.No)
you can not use where inside a count like:
Count(R.RID WHERE $Username= R.Owner)
Take a look at the Documentation and check the syntax again.
and try to replace the Status == 'Active' with Status = 'Active'
Once you created the view you can read it normally like a table usign the select keyword

Answer 3

As well as other issues identified in other answers, you need to specify the names of the columns in the view with:
CREATE VIEW UserResults(No, Description, UserCount, ActiveCount) AS ...
Also, in classic (standard) SQL, you cannot parameterize a view with a variable; the $Username notation looks like a parameter - and would not be allowed, therefore.