Du kan definiera f som en funktion som nedan
create or replace function f(param IN VARCHAR2) return varchar2 is
Result varchar2(32767);
begin
with names as(
SELECT REGEXP_SUBSTR(regexp_replace(replace(param,
chr(13) || chr(10),
','),
'[[:space:]]*',
''),
'[^=]+',
1,
level) as name
FROM DUAL
CONNECT BY LEVEL <= (SELECT REGEXP_COUNT(param, '=') FROM DUAL)
)
select LISTAGG(nvl(regexp_substr(name, '[^,]+', 1, 2),
regexp_substr(name, '[^,]+', 1)),
',') WITHIN
GROUP(
ORDER BY name)
INTO Result
from names;
return(Result);
end f;
Sedan kan du anropa dina parametrar som nedan
with parameter(param) as (
select 'aa = black' ||chr(13)||chr(10)||'bb = change'||chr(13)||chr(10)||'mmmm=no'
from dual union all
select 'aa = black' ||chr(13)||chr(10)||'bb = change'||chr(13)||chr(10)||'kkk=no' from dual
)
select distinct regexp_substr(f(param),'[^,]+',1,level) from parameter
connect by level <=regexp_count(f(param),',')+1;
Uppdatering 1: -Bara för din information Du kan anropa en funktion inom ett anonymt block som nedan
DECLARE
function f(param IN VARCHAR2) return varchar2 is
Result varchar2(32767);
begin
with names as(
SELECT REGEXP_SUBSTR(regexp_replace(replace(param,
chr(13) || chr(10),
','),
'[[:space:]]*',
''),
'[^=]+',
1,
level) as name
FROM DUAL
CONNECT BY LEVEL <= (SELECT REGEXP_COUNT(param, '=') FROM DUAL)
)
select LISTAGG(nvl(regexp_substr(name, '[^,]+', 1, 2),
regexp_substr(name, '[^,]+', 1)),
',') WITHIN
GROUP(
ORDER BY name)
INTO Result
from names;
return(Result);
end f;
begin
for i in 1 .. (regexp_count(f('aa = black' || chr(13) || chr(10) ||
'bb = change' || chr(13) || chr(10) ||
'kkk=no'),
',') + 1) loop
dbms_output.put_line(regexp_substr(f('aa = black' || chr(13) ||
chr(10) || 'bb = change' ||
chr(13) || chr(10) || 'kkk=no'),
'[^,]+',
1,
i));
end loop;
end;