Question

I have identified duplicate records in my staging environment

SQL> SELECT COUNT(*) 
  2  FROM MASTER_CHILD_MERGE A 
  3  WHERE  A.CAM_ID IN (SELECT B.CAM_ID FROM CAM_DIM B);
SQL> 703022

For the analyst in our team, I want to create a table that has A and B’s columns. I tried doing that

SQL> CREATE TABLE DUPES AS 
  2  SELECT * FROM NDS_MASTER_CHILD_MERGE A  
  3  WHERE  A.CAM_ID IN (SELECT B.CAM_ID FROM CAM_DIM B);

but I realized that it will only gives me A’s columns. How do I add B’s columns as well? I am pretty sure it is an obvious solution but I am not seeing it…

I am on Oracle 10g.

Answer 1

Just join those two tables

create table dupes as 
  select * 
   from nds_master_child_merge a
   join cam_dim b 
     on a.can_id = b.cam_id