Tag: 15

Today, we’ll be checking one new area where we can implement regular expression to achieve the password validation without involving any kind of Macro, Stored-Proc.

Let’s consider the following conditions to be implemented –

1. Password should contain characters between 6 & 10.

2. One character should be digit.

3. One character should be in upper case letter.

4. There should be at least one special character.

Let’s check the Query & Output –

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select seq_no,
       passwd,
       regexp_similar(passwd,'^(?=^([[:graph:]]{6,10})$)(?=.*([[:upper:]]{1,}))(?=.*([[:digit:]]{1,})).*$') as reg_test
from scott.login_det
order by 1;


SEQ_NO	PASSWD	 REG_TEST
-----   -------  --------------
1	hoti         0
2	hotimla	     0
3	hotImla	     0
4	hot@imla     0
5	hoT@imla     0
6	hoT@iml9a    1
7	hoT@iml9a66  0

Similarly, you can add condition of lower case character if you want to make it more complex.

Hope, this will give you another way – to implement the same logic. 🙂