String to column

Question

Hi experts,
The data is as follows
sno
1,2,3,4,5,6,7,8,9,10
I want to display it as
SNO
1
2
3
4
5
6
7
8
9
10
Please provide me the SQL query.
Thanks in advance.

Answer 1

Hi,
Here's one way:
SELECT  REGEXP_SUBSTR ( sno
                , ''[^,]+'
                , 1
                , LEVEL
                )          AS sub_sno
FROM    table_x
WHERE     str     = ...     -- If table has more than 1 row
CONNECT BY  LEVEL <= 1 + LENGTH (sno)
                     - LENGTH (REPLACE (sno, ','))
;If sno is not in a table, then you can use dual in the FROM clause.
Starting in Oracle 11.1, you can use REGEXP_COUNT instead of LENGTH to see how many commas are in sno.
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements) and the results you want from that data.
Explain, using specific examples, how you get those results from that data.
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