字符串中以字符分隔数据的处理

select 'insert into xxx (xxx1) values('''|| regexp_substr('C:       72771379200   107376275456','[^ ]+',1,level) ||''');' xxx from dual connect by level<=3;

select regexp_substr('C:       72771379200   107376275456','[^ ]+',1,level) from dual connect by level<=3;

SELECT ID

  FROM (SELECT REGEXP_SUBSTR('1,2,3', '[^,]+', 1, LEVEL) ID

          FROM DUAL

        CONNECT BY LEVEL <= 1000000)

 WHERE ID IS NOT NULL;

SELECT REGEXP_SUBSTR('1,2,3', '[^,]+', 1, LEVEL) ID

          FROM DUAL
        CONNECT BY LEVEL <= LENGTH('1,2,3')-LENGTH(REPLACE('1,2,3',',',''))+1;