我有一个按美元金额列排序的团队列表,当 PHP 在我的页面上发布它时,它有一个级别/类别标记为每个团队,具体取决于每个团队的金额是什么等级。 例:
SQL 结果:
Team | Amount
A 550.00
B 1200.00
C 320.00
D 800.00
PHP 的布局如下:
B - Top tier (over $1,000)
D - Middle tier (over $500)
A - Middle tier (over $500)
C - Low tier (over $150)
现在我在页面上显示了很多团队,我需要做的是他们仍然按照页面上从最高到最低的数量顺序显示,我实际上需要 SQL 输出到他们的层中,然后在每一层中按字母顺序排序。 例如(使用我上面的小 PHP 输出示例),团队"D"和"A"都在同一层中,但"A"应该首先按字母顺序显示。
使用:
SELECT CASE WHEN Amount > 1000 THEN 4
WHEN Amount > 500 THEN 3
WHEN Amount > 150 THEN 2
ELSE 1
END Tier,
Team, Amount
FROM Table
ORDER BY Tier DESC, Team
select teamname from (
select teamname, 1 as ordern from teams where Amount>=1000
union all
select teamname, 2 from teams where Amount<1000 and Amount>=500
union all
select teamname, 3 from teams where Amount<500 and Amount>=150
union all
select teamname, 4 from teams where Amount<150
) as q
order by ordern DESC, teamname ASC
您需要
首先按数量排序,其次按团队排序。
select TeamName,'Top tier (over $1,000)'
from table where amount > 1000
union all
select TeamName,'Middle tier (over $500)'
from table where amount between 500 and 1000
union all
select TeamName,'Low tier (over $150)'
from table where amount between 150 and 500
order by 2,1