在oracle中拆分数据

Question

我有一张桌子员工：

  CREATE TABLE EMP 
   (ID NUMBER, 
    DES CLOB);

表中实际数据：

id   desc
1    I have pen in India
2    My name is pravin

当数据长度大小超过6时使用循环创建函数，然后其他数据是oracle中的下一行。

输出

id   desc
1    I have
1     pen i
1    n India
2    My nam
2    e is p
2    ravin

将 clob 转换为 varchar

Answer 1

激发查询将代码包装在您需要的函数中：

with data(id, txt) as (
    select 1, empty_clob() || 'I have pen in India' union all
    select 2, empty_clob() || 'My name is pravin'
)
select id, dbms_lob.substr(txt, 6, 6*(level - 1)+1) as descr
from data
connect by prior id = id and dbms_lob.substr(txt, 6, 6*(level - 1)+1) is not null and prior sys_guid() is not null
;