Question

我正在尝试制作一个特定列出现两次的文件副本。我需要两个条目，但在一个单独的文件中。下面附有编写的代码，但它无法读取需要子集的ID列表

CREATE TABLE DUPLICATECLIENTID_AVOX AS SELECT * FROM nodup_avox_data_v1_nr WHERE CLIENT_ID =(select client_id from (select CLIENT_ID, count(CLIENT_ID) as clientcount 
from nodup_avox_data_v1_nr
group by CLIENT_ID
having count(CLIENT_ID) > 1));

Answer 1

也许尝试使用IN（），如下所示：

CREATE TABLE DUPLICATECLIENTID_AVOX AS
SELECT *
FROM nodup_avox_data_v1_nr
WHERE CLIENT_ID IN (
                     SELECT CLIENT_ID
                     FROM nodup_avox_data_v1_nr
                     GROUP BY CLIENT_ID
                     HAVING count(CLIENT_ID) > 1
                    );

Answer 2

试试这个：

CREATE TABLE DUPLICATECLIENTID_AVOX 
AS
SELECT *
  FROM nodup_avox_data_v1_nr
 WHERE CLIENT_ID IN (SELECT CLIENT_ID
                       FROM nodup_avox_data_v1_nr
                      GROUP BY CLIENT_ID
                     HAVING COUNT(*) = 2
                    )

请注意我写了HAVING COUNT(*) = 2，因为您希望列显示两次

基于oracle中特定值的子集数据

2 个答案: