mysql组字段名消除所有非字母字符

我有一个表，其中输入了电话号码，如下所示

tel
--------
+6112345
611-12345
61112345
611 12345

所有这些都是以不同方式输入的一个电话号码。如何编写一个查询，将所有这些内容组合成一个查询

我写了一个查询，比如-

select replace(replace(replace(tel,"+",""),"-","")," ",""), count(*)  
from tb_orders 
group by replace(replace(replace(tel,"+",""),"-","")," ","")

请帮我修一下这个

源数据

SELECT * FROM tb_orders;
+-----------+
| tel       |
+-----------+
| +6112345  |
| 611-12345 |
| 61112345  |
| 611 12345 |
+-----------+
4 rows in set (0.00 sec)

查询：

SELECT REPLACE(REPLACE(REPLACE(tel,"+",""),"-","")," ","") AS PhoneNumber , COUNT(*) FROM tb_orders GROUP BY PhoneNumber;
+-------------+----------+
| PhoneNumber | COUNT(*) |
+-------------+----------+
| 61112345    |        3 |
| 6112345     |        1 |
+-------------+----------+
2 rows in set (0.00 sec)

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所有的“否”都不一样，第一个是7位，其他的都是8位。是的，我用同样的方法做了，只是想知道还有其他方法做这个吗