Oracle字串拆分批量處理，多行處理

之前想使用regexp_replace，直接處理多行字串拆分，使用以前sql處理：

insert

into yy1 select  t.xh,       
regexp_substr(t.ssbw,
'[^、]+',1
,level
) ssbw from mm1 t
connect
bylevel
<= length(t.ssbw)
- length(regexp_replace(t.ssbw,
'、','')
)+1

mm1表結構，mm的表結構跟mm1一致:

create

table mm1
(  xh    varchar2(
100 byte)
,--主鍵
ssbw  varchar2(
2000 byte)
--需要拆分的字段
)

create

table yy1
(  xh  varchar2(
100 byte)
,  ssbw  varchar2(
4000 byte)
)

declare

num int
;begin
num :=0;
for num in
1..1471
loop
---迴圈次數 表示從1開始，1471結束
delete   mm1;
commit
;insert
into  mm1  select
*from mm where to_number(xh)
=num;
commit
;insert
into yy1 select  t.xh,       
regexp_substr(t.ssbw,
'[^、]+',1
,level
) ssbw from mm1 t
connect
bylevel
<= length(t.ssbw)
- length(regexp_replace(t.ssbw,
'、','')
)+1;
commit
;end
loop
;end
;

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