Question

拥有sql，例如类似下面的内容导致某些行具有一个值。我搜索与SELECT * FROM some_sql不同的sql，这导致一行以逗号分隔值。


WITH some_sql AS (
  SELECT 1 FROM DUAL
  UNION
  SELECT 2 FROM DUAL
)
SELECT * FROM some_sql

此SQL导致两行值为1和2。我在不改变'some_sql'代码的情况下搜索了一个SQl，结果为1,2。

Answer 1

您使用的是11G，您可以使用LISTAGG

WITH some_sql AS (
  SELECT 1 x FROM DUAL
  UNION
  SELECT 2 x FROM DUAL
)
SELECT LISTAGG(x, ',') WITHIN GROUP(ORDER BY x) FROM some_sql

Answer 2