Oracle：將分析函數中的wm_concat轉換爲

Question

我在讀到，使用聚合函數作爲分析函數link應該非常簡單。我想在Oracle 10g中使用wm_concat作爲分析函數。

Answer 1

它只是作爲建議！非常感謝！

WITH temp as (
SELECT 'A' as master , 1 Col from dual 
UNION SELECT 'A' , 3 from dual 
UNION SELECT 'B' , 1 from dual 
UNION SELECT 'B' , 2 from dual 
UNION SELECT 'C' , 1 from dual) 
SELECT 
    master, 
    wm_concat(Col) over (partition by master) 
FROM 
    temp