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REGEXP_SUBSTR - how to use case insensitive

2771962Jan 6 2015 — edited Jan 6 2015

I have to use REGEXP_SUBSTR with case insensitive option

while I use as below

select REGEXP_SUBSTR('search for uk123', 'UK','i' )  col_name from dual;

it shows error :  ORA-01722: invalid number

please help ..

Oracle 11.2.0.1.0
This post has been answered by Moazzam on Jan 6 2015
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Locked on Feb 3 2015
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