pokud byste chtěli hodnoty oddělené čárkou, můžete to udělat jako takové (nebo pokud na 11gr2 použijte listAgg )
WITH NUMS AS(
SELECT 10 STARTNR , 15 ENDNR FROM DUAL UNION
SELECT 18 STARTNR , 22 ENDNR FROM DUAL UNION
SELECT 34 STARTNR , 50 ENDNR FROM DUAL ) ,
NUMSBETWEEN AS(
SELECT distinct (level + startnr)-1 seq , startnr, endnr
FROM NUMS
CONNECT BY (LEVEL +STARTNR ) <= ENDNR+1
)
SELECT startnr,
LTRIM(MAX(SYS_CONNECT_BY_PATH(seq,','))
KEEP (DENSE_RANK LAST ORDER BY curr),',') AS seq
FROM (SELECT startnr,
seq,
ROW_NUMBER() OVER (PARTITION BY startnr ORDER BY seq) AS curr,
ROW_NUMBER() OVER (PARTITION BY startnr ORDER BY seq) -1 AS prev
FROM numsBetween)
GROUP BY startnr
CONNECT BY prev = PRIOR curr AND startnr = PRIOR startnr
START WITH CURR = 1;
STARTNR SEQ
10 10,11,12,13,14,15
18 18,19,20,21,22
34 34,35,36,37,38,39,40,41,42,43 ,44,45,46,47,48,49,50