Mif*_*fas 8 mysql sql phpmyadmin
这是我的项目表
Project Table
JNo Name City
J1 Proj1 London
J2 Proj2 Paris
J3 Proj3 Athens
J4 Proj4 India
Run Code Online (Sandbox Code Playgroud)
这是我的货运表
Shipment
SNo PNo JNo Qty
S1 P1 J1 50
S1 P1 J2 90
S1 P2 J1 40
S1 P3 J3 20
S2 P1 J3 110
S2 P2 J2 30
S2 P4 J3 10
S2 P3 J1 100
S3 P1 J3 80
S3 P4 J2 70
S3 P4 J2 70
S4 P1 J3 20
S4 P2 J1 60
Run Code Online (Sandbox Code Playgroud)
我想要提供最小数量的项目名称.
我试过了.但它只返回最小数值,这是我的代码
select min(qty) from shipment where jno IN(select jno from project)
Run Code Online (Sandbox Code Playgroud)
And*_*eas 13
SELECT p.name
FROM Project p, Shipment s
WHERE s.JNo = p.JNo
AND s.Qty in (SELECT MIN(qty) FROM shipment)
Run Code Online (Sandbox Code Playgroud)
| 归档时间: |
|
| 查看次数: |
50881 次 |
| 最近记录: |