Oracle SQL查询以排除包含非数字字符的行 [英] Oracle SQL query to exclude rows containing non-numeric characters

问题描述

我有以下运行良好的oracle查询

I have the following oracle query which runs fine

SELECT c.customercode, s.sales_id 
FROM customers c 
LEFT JOIN sales s ON c.customercode = s.sales_id
WHERE c.address IS NOT NULL

并返回类似于以下内容的结果:

and it returns results looking something like this:

customercode        sales_id
12345678            456
34534534            678
23423423            X123

我想做的是排除sales_id包含除数字字符以外的任何内容的行.因此，以上结果将不包括第三行.

What I would like to do is exclude rows where the sales_id contains anything other than numeric characters. So the above results would not include the 3rd row.

推荐答案

您可以使用正则表达式.在这种情况下，regexp_like( sales_id, '^[[:digit:]]*$' )

You can use regular expressions. In this case, regexp_like( sales_id, '^[[:digit:]]*$' )

SQL> with x as (select 12345678 code, '456' sales_id from dual union all
  2             select 34534534, '678' from dual union all
  3             select 23423423, 'X123' from dual)
  4  select *
  5    from x
  6   where regexp_like( sales_id, '^[[:digit:]]*$' );

      CODE SALE
---------- ----
  12345678 456
  34534534 678

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