我有两个表,其中公共列是位置,我正在寻找两个表中的位置计数并显示组合计数.
Table-1
+-------------+
| Location |
+-------------+
| USA |
| INDIA |
| UK |
| INDIA |
+-------------+
Table -2
+-------------+
| Location |
+-------------+
| INDIA |
| INDIA |
| USA |
+-------------+
这里表1的计数是:
+-------------+--------+
| Location | COUNT |
+-------------+--------+
| USA | 1 |
| INDIA | 2 |
| UK | 1 |
+-------------+--------+
表2中的计数是:
+-------------+--------+
| Location | COUNT |
+-------------+--------+
| USA | 1 |
| INDIA | 2 |
+-------------+--------+ …