wiki:AdvancedReports

Version 3 (modified by 211228, 5 weeks ago) ( diff )

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Напредни извештаи од базата (SQL)

Извештај за проверка колку студенти кои побарале специфична соба во првиот ден од рокот за вселување истата ја добиле како и информација за најмногу исполнет блок и број на зафатени соби

SELECT 
    COUNT(DISTINCT str.student_id) AS br_studenti_zemale_soba_prv_den,
    (SELECT 
         str.block_id 
     FROM StudentTookRoom str
     GROUP BY str.block_id) AS blok_so_najvekje_zafateni_sobi,
     b.num_available_rooms AS br_zafateni_sobi
FROM student s
JOIN roomrequest rr 
    ON s.u_id = rr.student_id
JOIN studenttookroom str 
    ON str.student_id = s.u_id
JOIN room r 
    ON r.room_number = str.room_num
JOIN block b 
    ON b.block_id = r.block_id
WHERE rr.status = 'Approved' 
  AND str.start_date = (SELECT MIN(start_date) FROM StudentTookRoom)
  AND rr.room_number = str.room_num
  group by b.num_available_rooms

Извештај за бројка на доделени соба и блок на студенти кои побарале соодветна соба но истата не ја добиле

SELECT 
    du.u_id AS student_id,
    CONCAT(du.first_name, ' ', du.last_name) AS student_name,
    rr.block_id AS requested_block,
    rr.room_number AS requested_room,
    str.block_id AS assigned_block,
    str.room_num AS assigned_room,
    COUNT(*) OVER (PARTITION BY rr.block_id, rr.room_number) AS mismatches_per_requested_room
FROM dorm_user du 
JOIN roomrequest rr 
    ON du.u_id = rr.student_id
JOIN studenttookroom str 
    ON str.student_id = du.u_id
WHERE rr.block_id != str.block_id OR rr.room_number != str.room_num
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