WITH ThemesAndUsersToEvaluate(theme_id,title,user_id) AS ( SELECT tblItems.id AS theme_id, tblItems.title,tblUsersTargetGroups.UserCn AS user_id FROM tblItems JOIN tblModuleItems ON tblItems.id = tblModuleItems.item_id JOIN tblEduOffersModules ON tblModuleItems.module_id = tblEduOffersModules.module_id JOIN tblEduOffersTargetGroups ON tblEduOffersModules.eduOffer_id = tblEduOffersTargetGroups.eduOffer_id JOIN tblUsersTargetGroups ON tblEduOffersTargetGroups.targetGroup_id = tblUsersTargetGroups.targetGroup_id WHERE tblItems.title LIKE '%(Vertriebsausbildung)' AND itemType_id = 1 AND mandator_id = (SELECT TOP 1 id FROM tblMandators WHERE name = 'Debeka') ), ThemeDurationPerUser (theme_id,title,user_id,duration) AS ( SELECT ThemesAndUsersToEvaluate.theme_id, ThemesAndUsersToEvaluate.title, tblStatsThemeSessions.user_id, SUM(durationSeconds) AS duration FROM ThemesAndUsersToEvaluate JOIN tblStatsThemeSessions ON tblStatsThemeSessions.theme_id = ThemesAndUsersToEvaluate.theme_id AND tblStatsThemeSessions.user_id = ThemesAndUsersToEvaluate.user_id GROUP BY ThemesAndUsersToEvaluate.theme_id, ThemesAndUsersToEvaluate.title, tblStatsThemeSessions.user_id ) SELECT ThemeDurationPerUser.title AS [WBT Titel], AVG(ThemeDurationPerUser.duration / 60) AS [Durchschnittliche Bearbeitungsdauer (min.)], COUNT(*) AS [Anzahl Nutzer] FROM ThemeDurationPerUser JOIN tblStatusUserCourse ON ThemeDurationPerUser.theme_id = tblStatusUserCourse.theme_id AND ThemeDurationPerUser.user_id = tblStatusUserCourse.UserId AND tblStatusUserCourse.Complete > 85 GROUP BY ThemeDurationPerUser.title