查出数字字符字段中非数字字符的记录

最近，将原来的数字符字段转换为数字时，总报错误：无效数字。

如何找出其中哪些是非数字字符的记录？比较麻烦的事。下面是用Oracle DB自带的函数translate可以找出来的

1.创建测试表

Create Table TestChar(
    ITEM_NUMBER VARCHAR2(20)
);

 

2.手工插入测试记录

Insert Into TestChar (ITEM_NUMBER) values ('312');
Insert Into TestChar (ITEM_NUMBER) values ('312');
Insert Into TestChar (ITEM_NUMBER) values ('4412');
Insert Into TestChar (ITEM_NUMBER) values ('152');
Insert Into TestChar (ITEM_NUMBER) values ('162');
Insert Into TestChar (ITEM_NUMBER) values ('172');
Insert Into TestChar (ITEM_NUMBER) values ('142');
Insert Into TestChar (ITEM_NUMBER) values ('142');
Insert Into TestChar (ITEM_NUMBER) values ('112');
Insert Into TestChar (ITEM_NUMBER) values ('1d2');
Insert Into TestChar (ITEM_NUMBER) values ('152');
Insert Into TestChar (ITEM_NUMBER) values ('125');
Insert Into TestChar (ITEM_NUMBER) values ('162');
Insert Into TestChar (ITEM_NUMBER) values ('712');
Insert Into TestChar (ITEM_NUMBER) values ('A712');
commit;

 

3.妙用Oracle 内置函数Translate找出非数字字符的记录

select trim(translate(RTRIM(LTRIM(ITEM_NUMBER)), '#0123456789', '#'))
  from TestChar
 Where trim(translate(RTRIM(LTRIM(ITEM_NUMBER)), '#0123456789', '#')) is not null;