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SELECT [AuthorName],[DoctorName],COUNT([EpisodeId]) AS [No of episodes]
FROM [dbo].[tblAuthor] A INNER JOIN [dbo].[tblEpisode] E
ON A.AuthorId = E.AuthorId INNER JOIN [dbo].[tblDoctor] D
ON E.DoctorId = D.DoctorId
GROUP BY [AuthorName],[DoctorName]
HAVING COUNT([EpisodeId]) > 5
ORDER BY [No of episodes] DESC;
GO
SELECT [AuthorName], COUNT([EpisodeId]) AS [# OF EPISODES],
MIN([EpisodeDate]) AS [Earliest epi Date],
max([EpisodeDate]) as [latest epi Date]
FROM [dbo].[tblAuthor] AS A INNER JOIN [dbo].[tblEpisode] AS E
ON A.AuthorId = E.AuthorId
GROUP BY [AuthorName]
order by [# OF EPISODES] desc;
GO
SELECT cm.[CompanionId],[CompanionName]
FROM [dbo].[tblCompanion] AS cm left outer JOIN [dbo].[tblEpisodeCompanion] AS Ec
ON cm.CompanionId = Ec.CompanionId
except
(SELECT cm.[CompanionId],[CompanionName]
FROM [dbo].[tblCompanion] AS cm inner JOIN [dbo].[tblEpisodeCompanion] AS Ec
ON cm.CompanionId = Ec.CompanionId);
GO
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