How to use regexp_like to validate a string

Hi all

We want to validate a column value, which must be of 'a - z' and ' / '.
We try to use regexp_like for this, but it does not work.

By example, "abcd/efgh" is valid, and ' ab.cd / ef - gh' is not valid.

SELECT 'PASS '.
OF THE DOUBLE
WHERE regexp_like('abcd/efgh','[a-z]|[]')

We hope that the result is PASS, and the result is PASS, too.

SELECT 'PASS '.
OF THE DOUBLE
WHERE regexp_like('ab.cd/ef-gh','[a-z]|[]')

We hope that the result is NOT PASS, but the result is always PASS.?!

How can we use regexp_like to validate a string with specific characters?

Any suggestion will be appreciated.

Best regards
Zhxiang

Hello

Connected to Oracle Database 10g Express Edition Release 10.2.0.1.0
Connected as hr

SQL>
SQL> with data as(
  2  select 'abcd/efgh' as d from dual union all
  3  select 'ab.cd/ef-gh' as d from dual)
  4  select * from data where regexp_like(d, '^[a-z/]+$');

D
-----------
abcd/efgh

SQL> 

Kind regards

Tags: Database

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