oracle分割字符串后以单列多行展示:原始的sql： select substr(field1, instr(field1, |, 1, rownum) + 1, instr(field1, |, 1, rownum + 1) - instr(field1, |, 1, rownum) - 1) as field2 from (select | a|bbb|cccc|ddddd|ee|