How to Split a comma separated string in Oracle

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How to Split a comma separated string in Oracle using SUBSTR and INSTR.

String '20.4,12.5,3.5,0.2,0.2'.

I tried using the below code, but I'm unable get the value after the 2nd comma.

SELECT substr('20.4,12.5,3.5,0.2,0.2',0,instr('20.4,12.5,3.5,0.2,0.2',',')-1) 
value FROM dual   -- 1. 20.4

for second value i'm getting the entire string after 2nd comma.

SELECT substr('20.4,12.5,3.5,0.2,0.2',instr('20.4,12.5,3.5,0.2,0.2',',')+1,instr('20.4,
12.5,3.5,0.2,0.2',',',2,2)-1) st FROM dual   -- result : 12.5,3.5,

I want the value after each comma, like

20.4

12.5

3.5 and so on.

substr oracle string
3 Answers

You can also check for a specific occurrence, sample, ever second occurrence between comma.

SQL> select regexp_substr('20.4,12.5,3.5,0.2,0.2','[^,]+[^,]', 1,2 ) as 2nd_occur 
     from dual;

 ", 1,2 )" -- You can replace this query part to choose with occurrence you want, like 

 ", 1,3 )" -- for third occurrence.`


Output:

2nd_occur
---------
12.5
user_104210110

If you have APEX 5.1 or higher installed in the your database, you can solve this quite elegantly, using apex_string.split :

select column_value
from table(apex_string.split('20.4,12.5,3.5,0.2,0.2', ','))
user_95879050
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