r cx ON cx.calendarID = x.calendarID AND cx.summerschool = 0
INNER JOIN schoolyear syx ON syx.endyear = ... endar c ON c.calendarID = e.calendarID
INNER JOIN school s ON s.schoolID = c.schoolID
INNER JOIN district
al ON E.calendarID = Cal.calendarID AND Cal.summerSchool = 'false'
JOIN SchoolYear SY ON Cal.endYear = SY.... EA
JOIN Person P ON EA.personID = P.personID
JOIN School S ON EA.schoolID = S.schoolID
JOIN [IDENTITY] I O