我有一个mysql数据库寄存器表如下：
id_register |date | id_team |id_athlete | id_presence
1 |2018-04-19 | 3 |14 |1
2 |2018-04-19 | 3 |15 |2
3 |2018-04-19 | 3 |16 |1
4 |2018-04-20 | 3 |14 |3
5 |2018-04-20 | 3 |15 |2
6 |2018-04-20 | 3 |16 |1
7 |2018-04-19 | 4 |4 |1
8 |2018-04-19 | 4 |5 |2
9 |2018-04-19 | 4 |6 |1
10 |2018-04-20 | 4 |4 |2
11 |2018-04-20 | 4 |5 |1
12 |2018-04-20 | 4 |6 |1
id_team，id_athlete，id_presence显然是链接到相应文本值的外键。
我想按如下方式为每个团队输出存在值（例如，对于团队ID = 3）
date | athlete 14 | athlete 15 | athlete 16
2018-04-19 |1 |2 |1
2018-04-20 |3 |2 |1
我可以或者应该重新考虑我的桌子吗？