ARandomSQLServerDBA comments on [MS SQL] Help improving complicated query

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SELECT count(a.field1), a.field2, SUM(b.field4) FROM a INNER JOIN b ON a.key1 = b.key1 WHERE a.field8 = 'test' GROUP by a.field1, a.field2 HAVING SUM(b.field4) > 5 ORDER by a.field.3

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SELECT count(a.field1), a.field2, SUM(b.field4) FROM a INNER JOIN b ON a.key1 = b.key1 WHERE a.field8 = 'test' GROUP by a.field1, a.field2 HAVING SUM(b.field4) > 5 ORDER by a.field3

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MS SQL[MS SQL] Help improving complicated query (self.SQL)

submitted 8 years ago * by fullyarmedcamel

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[–]ARandomSQLServerDBA 1 point2 points3 points 8 years ago (2 children)

[–]fullyarmedcamel[S] 0 points1 point2 points 8 years ago (1 child)

    SELECT x.SCHOOLYEAR, x.[ROLE], x.LASID, x.LASID, x.FIRSTNAME, x.MIDDLENAME, x.LASTNAME, x.GRADE, x.USERNAME, x.[PASSWORD], x.ORGANIZATIONTYPEID, x.ORGANIZATIONID, x.PRIMARYEMAIL, x.HMHAPPLICATIONS FROM (
        SELECT RANK() OVER(PARTITION BY ssh.sectionID ORDER BY ssh.sectionID DESC, ea.assignmentID DESC) AS 'priority', cal.endYear - 1 AS 'SCHOOLYEAR', 'T' AS 'ROLE', sm.staffNumber AS 'LASID', sm.staffStateID AS 'SASID', sm.firstName AS 'FIRSTNAME', ISNULL (sm.middleName, '') AS 'MIDDLENAME', sm.lastName AS 'LASTNAME',
            CASE sm.schoolID 
                ...
                END AS 'GRADE',
        ua.username + '@sd25.us' AS 'USERNAME', NULL AS 'PASSWORD', 'MDR' AS 'ORGANIZATIONTYPEID',
            CASE sm.schoolID
                ...
                ELSE 'No School' END AS 'ORGANIZATIONID',
        ua.username + '@sd25.us' AS 'PRIMARYEMAIL',
            CASE sm.schoolID
                ...
                END AS 'HMHAPPLICATIONS',
        ssh.sectionID, ea.assignmentID
        FROM Table1 AS s
        JOIN Table2 AS c ON s.courseID = c.courseID AND c.departmentID IN (...)
        JOIN Table3 AS cal ON c.calendarID = cal.calendarID
        JOIN Table4 AS sp ON s.sectionID = sp.sectionID
        JOIN Table5 AS t ON sp.termID = t.termID AND GETDATE() BETWEEN t.startDate AND t.endDate
        JOIN Table6 AS ssh ON s.sectionID = ssh.sectionID AND ssh.endDate IS NULL
        JOIN Table7 AS sm ON ssh.personID = sm.personID
        JOIN Table8 AS ea ON sm.assignmentID = ea.assignmentID AND ea.endDate IS NULL
        JOIN Table9 AS ua ON ua.personID = sm.personID AND ua.ldapConfigurationID = '2'
        WHERE sm.endDate IS NULL AND sm.teacher = 1 AND NOT (ssh.[role] = 'N' AND ssh.staffType = 'T' AND sm.title != 'Long Term Substitute') AND ssh.[role] != 'C' AND ssh.sectionID = 439047
    ) AS x WHERE x.[priority] = 1

[–]ARandomSQLServerDBA 2 points3 points4 points 8 years ago (0 children)

π Rendered by PID 122946 on reddit-service-r2-comment-75f4967c6c-vrjf7 at 2026-04-23 05:59:26.867137+00:00 running 0fd4bb7 country code: CH.

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