select regexp_substr('444.555.666', '[^.]+', 1, level) col
from dual
connect by level <= regexp_count('444.555.666', '\.') + 1
COL ---- 444 555 666
with t as (select '111.222.333' col from dual union all select '444.555.666' col from dual) select regexp_substr(col, '[^.]+', 1, level) from t connect by level <= regexp_count(col, '\.\') + 1 and col = prior col and prior dbms_random.value > 0
--------- 111 222 333 444 555 666
with t as (select '111.222.333' col from dual union all select '444.555.666' col from dual) select regexp_substr(col, '[^.]+', 1, lv) from t, (select level lv from dual connect by level < 10) b where b.lv <= regexp_count(t.col, '\.\') + 1
with t as (select '111.222.333' col from dual union all select '444.555.666' col from dual) select column_value from t, table(cast(multiset (select regexp_substr(col, '[^.]+', 1, level) dd from dual connect by level <= regexp_count(t.col, '\.\') + 1) as sys.odcivarchar2list)) a
COLUMN_VALUE ------------- 111 222 333 444 555 666
with t as
(select '111.222.333' col
from dual
union all
select '444.555.666' col
from dual)
select regexp_substr(col, '[^.]+', 1, trim(column_value))
from t,
xmltable(concat('1 to ',regexp_count(t.col, '\.\') + 1)) a ;
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