sql like 下划线处理

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mysql> select * from test_collection where name like '%t1_%';
+----+---------+------+---------+
| id | name    | note | status  |
+----+---------+------+---------+
| 51 | t1_dd   | t1   | enabled |
| 52 | t1dfddf | t2   | enabled |
+----+---------+------+---------+
2 rows in set (0.00 sec)

mysql> 
mysql> select * from test_collection where name like '%t1\_%';
+----+-------+------+---------+
| id | name  | note | status  |
+----+-------+------+---------+
| 51 | t1_dd | t1   | enabled |
+----+-------+------+---------+
1 row in set (0.00 sec)
 

参考：

https://www.cnblogs.com/baxianhua/p/9106097.html

https://blog.csdn.net/wuzuyu365/article/details/67637239