SQL将GROUP列GROUP成一行而不需要多个JOIN

Question

如何将分组的列显示为单行，以使计数值在视觉上清晰可见？我认为必须有一种简洁的方法，而不是联接多个表以显示单个行。

我的桌子（tb）看起来像这样

Name      Subjects
David     Geography
David     Geography
Sherry    History
Paul      History
Paul       Math
Ken       Chemistry  

我想这样显示表格

Name    Geography    History     Math     Chemistry   Total
David   2            0           0        0           2
Sherry  0            2           0        0           2
Paul    0            1           1        0           2
Ken     0            0           0        1           1

我在做多个联接表

SELECT g.name, g.count, h.count, m.count, c.count, 
g.count + h.count + m.count + c.count as Total
FROM
(SELECT name, count(*) as count
FROM tb 
WHERE Subjects = "Geography"
GROUP BY Name) as g
JOIN
(SELECT name, count(*) as count
FROM tb
WHERE Subjects = "History"
GROUP BY Name) as h
ON g.name = h.name
JOIN 
(SELECT name, count(*) as count
FROM tb
WHERE Subjects = "Math"
GROUP BY Name) as m
ON g.name = m.name
JOIN
(SELECT name, count(*) as count
FROM tb
WHERE Subjects = "Chemistry"
GROUP BY Name) as c
ON g.name = c.name