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feat: add 'Top 100 điểm khối cao nhất - Long An' SQL preset

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Computes each student's max admission-block sum across 49 official 2017
blocks (A00-A11, B00-B08, C00-C20, D01-D15, restricted to subjects
present in our DB — no Đức/Nhật languages). One row per student, sorted
by their personal best, top 100.

SQL note: SQLite's MAX(x,y,...) scalar returns NULL if ANY arg is NULL.
Each block expression is wrapped in COALESCE(..., -1); NULLIF(..., -1)
restores NULL only for students with zero computable blocks.
This commit is contained in:
tiennm99
2026-04-14 23:11:01 +07:00
parent b7ef3aa332
commit 655d8f8cfc
1 changed files with 67 additions and 0 deletions
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src/components/custom-query.jsx
+67
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@@ -51,6 +51,73 @@ WHERE so_bao_danh LIKE '49%'
AND toan IS NOT NULL AND vat_ly IS NOT NULL AND hoa_hoc IS NOT NULL
ORDER BY tong_khoi_a DESC LIMIT 10`,
},
{
// Per-student MAX across 49 official 2017 blocks (A00-A11, B00-B08,
// C00-C20, D01-D15) restricted to subjects in our DB. SQLite's
// MAX(x,y,...) scalar returns NULL if ANY arg is NULL (not just all),
// so every block is wrapped in COALESCE(..., -1). NULLIF(..., -1)
// then restores NULL for students whose data yields no valid block.
label: "Top 100 điểm khối cao nhất - Long An",
sql: `SELECT
so_bao_danh,
ho_ten,
ngay_sinh,
ROUND(NULLIF(MAX(
COALESCE(toan+vat_ly+hoa_hoc, -1), -- A00
COALESCE(toan+vat_ly+tieng_anh, -1), -- A01
COALESCE(toan+vat_ly+sinh_hoc, -1), -- A02
COALESCE(toan+vat_ly+lich_su, -1), -- A03
COALESCE(toan+vat_ly+dia_ly, -1), -- A04
COALESCE(toan+hoa_hoc+lich_su, -1), -- A05
COALESCE(toan+hoa_hoc+dia_ly, -1), -- A06
COALESCE(toan+lich_su+dia_ly, -1), -- A07
COALESCE(toan+lich_su+gdcd, -1), -- A08
COALESCE(toan+dia_ly+gdcd, -1), -- A09
COALESCE(toan+vat_ly+gdcd, -1), -- A10
COALESCE(toan+hoa_hoc+gdcd, -1), -- A11
COALESCE(toan+hoa_hoc+sinh_hoc, -1), -- B00
COALESCE(toan+sinh_hoc+lich_su, -1), -- B01
COALESCE(toan+sinh_hoc+dia_ly, -1), -- B02
COALESCE(toan+sinh_hoc+ngu_van, -1), -- B03
COALESCE(toan+sinh_hoc+gdcd, -1), -- B04
COALESCE(toan+sinh_hoc+tieng_anh, -1), -- B08
COALESCE(ngu_van+lich_su+dia_ly, -1), -- C00
COALESCE(ngu_van+toan+vat_ly, -1), -- C01
COALESCE(ngu_van+toan+hoa_hoc, -1), -- C02
COALESCE(ngu_van+toan+lich_su, -1), -- C03
COALESCE(ngu_van+toan+dia_ly, -1), -- C04
COALESCE(ngu_van+vat_ly+hoa_hoc, -1), -- C05
COALESCE(ngu_van+vat_ly+sinh_hoc, -1), -- C06
COALESCE(ngu_van+vat_ly+lich_su, -1), -- C07
COALESCE(ngu_van+hoa_hoc+sinh_hoc, -1), -- C08
COALESCE(ngu_van+vat_ly+dia_ly, -1), -- C09
COALESCE(ngu_van+hoa_hoc+lich_su, -1), -- C10
COALESCE(ngu_van+sinh_hoc+lich_su, -1), -- C12
COALESCE(ngu_van+sinh_hoc+dia_ly, -1), -- C13
COALESCE(ngu_van+toan+gdcd, -1), -- C14
COALESCE(ngu_van+vat_ly+gdcd, -1), -- C16
COALESCE(ngu_van+hoa_hoc+gdcd, -1), -- C17
COALESCE(ngu_van+lich_su+gdcd, -1), -- C19
COALESCE(ngu_van+dia_ly+gdcd, -1), -- C20
COALESCE(toan+ngu_van+tieng_anh, -1), -- D01
COALESCE(toan+ngu_van+tieng_nga, -1), -- D02
COALESCE(toan+ngu_van+tieng_phap, -1), -- D03
COALESCE(toan+ngu_van+tieng_trung, -1), -- D04
COALESCE(toan+hoa_hoc+tieng_anh, -1), -- D07
COALESCE(toan+sinh_hoc+tieng_anh, -1), -- D08
COALESCE(toan+lich_su+tieng_anh, -1), -- D09
COALESCE(toan+dia_ly+tieng_anh, -1), -- D10
COALESCE(ngu_van+vat_ly+tieng_anh, -1), -- D11
COALESCE(ngu_van+hoa_hoc+tieng_anh, -1), -- D12
COALESCE(ngu_van+sinh_hoc+tieng_anh, -1), -- D13
COALESCE(ngu_van+lich_su+tieng_anh, -1), -- D14
COALESCE(ngu_van+dia_ly+tieng_anh, -1) -- D15
), -1), 2) AS diem_khoi_cao_nhat
FROM student
WHERE so_bao_danh LIKE '49%'
ORDER BY diem_khoi_cao_nhat IS NULL, diem_khoi_cao_nhat DESC
LIMIT 100`,
},
],
},
{