Get the values using substr

Question

Hi All,
i am a comma seperated values into a variable. below are the values.
"1234567,3,124567,3,14"
the length of the values can vary. eg the output can also be
"123,3,124567,443,1224"
I need to get each value and store it a separate variable. is it possible using substr..?
Please help me out...

Answer 1

Hi,
Here's how you can split a delimited list into parts in Oracle 9:
WITH     got_part_cnt     AS
     SELECT     pk
     ,     csv
     ,     1 + LENGTH (csv)
            - LENGTH (REPLACE (csv, ','))     AS part_cnt
     FROM     table_x
,     cntr     AS
     SELECT     LEVEL     AS n
     FROM     ( SELECT  MAX (part_cnt)     AS max_part_cnt
            FROM       got_part_cnt
     CONNECT BY     LEVEL <= max_part_cnt
,     got_pos          AS
     SELECT     p.pk
     ,     p.csv
     ,     c.n
     ,     INSTR ( ',' || p.csv
                , 1
                , c.n
                )          AS start_pos
     ,     INSTR ( p.csv || ','
                , 1
                , c.n
                )      AS end_pos
     FROM    got_part_cnt     p
     JOIN     cntr          c     ON     c.n     <= p.part_cnt
SELECT       pk
,       csv
,       n
,       SUBSTR ( csv
             , start_pos
           , end_pos - start_pos
           )               AS item
FROM       got_pos
ORDER BY  pk
,            n
;Pk is the primary key of table_x. If you don't need it, you can omit it.
Of course, this will work in versions later than 9, but you wouldn't want to if you could use REGEXP_SUBSTR.