How to find the union between 2 strings
HelloHere are 2 string as a samble of my 2 tables,
1 (; 1; 10; 2; 3; 4; 5; 7; 8)
2 (; 10; 2; 3; 4; 5; 8; 9)
I need to find the union between these 2 strings, the result should be
result of the union = (; 1; 10; 2; 3; 4; 5; 7; 8; 9)
any help please,.
Hello
Sorry; until you have validated your tables, I couldn't test it.
I forgot to attach cntr to each of the other tables. (It's all the interest to generate cntr in the first place).
That's what I should have posted:
WITH cntr AS
(
SELECT LEVEL AS n
FROM dual
CONNECT BY LEVEL <= 10
)
SELECT REGEXP_SUBSTR ( a.txt_a
, '[^(;)]'
, 1
, ca.n
) AS itm
FROM table_a a
CROSS JOIN cntr ca
--
UNION
--
SELECT REGEXP_SUBSTR ( b.txt_b
, '[^(;)]'
, 1
, cb.n
) AS itm
FROM table_b b
CROSS JOIN cntr cb
;
Output given your sample data:
ITM
-----------------
1
2
3
4
Tags: Database
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