我有字符串如何在pl/sql中使用split？

Question

我有字符串字符，我應該用逗號分割這個字符串

任何人都可以幫助我嗎？

Answer 1

SQL Fiddle

的Oracle 11g R2架構設置：

CREATE TABLE data (id, str) AS 
SELECT 1, '1,2,3,4,5' FROM DUAL 
UNION ALL SELECT 2, 'One,Two,Three' FROM DUAL 
UNION ALL SELECT 3, 'AA,BB,CC,DD,,EE' FROM DUAL; 

查詢1：

SELECT ID, 
     REGEXP_SUBSTR(d.str, '[^,]+', 1, l.COLUMN_VALUE) AS value, 
     l.COLUMN_VALUE AS "index" 
FROM data d, 
     TABLE(
      CAST(
      MULTISET(
       SELECT LEVEL 
       FROM DUAL 
       CONNECT BY LEVEL <= REGEXP_COUNT(d.str, '[^,]+') 
      ) AS sys.OdciNumberList 
     ) 
     ) l 
ORDER BY 
     1,3 

Results：

| ID | VALUE | index | 
|----|-------|-------| 
| 1 |  1 |  1 | 
| 1 |  2 |  2 | 
| 1 |  3 |  3 | 
| 1 |  4 |  4 | 
| 1 |  5 |  5 | 
| 2 | One |  1 | 
| 2 | Two |  2 | 
| 2 | Three |  3 | 
| 3 | AA |  1 | 
| 3 | BB |  2 | 
| 3 | CC |  3 | 
| 3 | DD |  4 | 
| 3 | EE |  5 |