我计算了一个百分比,它确实可以使用mysql查询,
+----------+
| % |
+----------+
| 20.00% |
| 16.67% |
| 50.00% |
+----------+
但是当想在listview vb net中读取它时,它不会像在mysql查询中那样显示
+----------+
| % |
+----------+
| 20.0000 |
| 16.6777 |
| 50.0000 |
+----------+
如何阅读内部列表视图与mysql查询完全相同,
谢谢大师,对不起我的英语太糟糕了:(
编辑: 我采用了以下示例查询表单:calculate percentage
查询:
SELECT group_name, employees, surveys, COUNT( surveys ) AS test1,
concat(round(( surveys/employees * 100 ),2),'%') AS percentage
FROM a_test
GROUP BY employees