我有一个数据交易表
Table Data (Month,Year,Type,Color)
+-------+------+-----------------------+---------------+
| Month | Year | type | Color |
+-------+------+-----------------------+---------------+
| 1 | 2013 | MATIC | BLACK |
| 1 | 2013 | MATIC | BLACK |
| 2 | 2013 | MATIC | BLACK |
| 2 | 2013 | MATIC | RED |
| 3 | 2013 | MATIC | WHITE |
| 3 | 2013 | MATIC | WHITE |
| 4 | 2013 | MATIC | WHITE |
| 4 | 2013 | MATIC | WHITE |
| 1 | 2013 | SPORT | RED |
| 1 | 2013 | SPORT | YELLOW |
| 2 | 2013 | SPORT | YELLOW |
| 2 | 2013 | SPORT | BLACK |
| 3 | 2013 | SPORT | BLACK |
+-------+------+-----------------------+---------------+
我想按类型，颜色，年份，月份计算数量 所以像这样的结果
+-------+------+-----------------------+---------------+--------+
| Month | Year | type | Color | Number |
+-------+------+-----------------------+---------------+--------+
| 1 | 2013 | MATIC | BLACK | 2 |
| 2 | 2013 | MATIC | BLACK | 1 |
| 2 | 2013 | MATIC | RED | 1 |
| 3 | 2013 | MATIC | WHITE | 2 |
| 4 | 2013 | MATIC | WHITE | 2 |
| 1 | 2013 | SPORT | RED | 1 |
| 1 | 2013 | SPORT | YELLOW | 1 |
| 2 | 2013 | SPORT | YELLOW | 1 |
| 2 | 2013 | SPORT | BLACK | 1 |
| 3 | 2013 | SPORT | BLACK | 1 |
+-------+------+-----------------------+---------------+--------+
按月，年，类型，颜色分组 获取数字的查询是什么？
答案 0 :(得分：3)
SELECT *, COUNT(*)
FROM table_name
GROUP BY month, year, type, color; -- TA DA!