Portal | Manuals | References | Downloads | Info | Programs | JCLs | Master the Mainframes
IBM Mainframe Computers Forums Index
 
Register
 
IBM Mainframe Computers Forums Index Mainframe: Search IBM Mainframe Forum: FAQ Memberlist Usergroups Profile Log in to check your private messages Log in
 

 

how to know to which table the columns belongs

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> DB2
View previous topic :: :: View next topic  
Author Message
rahil_maqsood

New User


Joined: 28 Mar 2005
Posts: 6

PostPosted: Wed May 25, 2005 2:19 pm    Post subject: how to know to which table the columns belongs
Reply with quote

After union of two or more tables How we will come to know by seeing the resultant table which column belongs to which table
Back to top
View user's profile Send private message

vasanthanc

New User


Joined: 01 Apr 2005
Posts: 58

PostPosted: Wed May 25, 2005 2:41 pm    Post subject:
Reply with quote

I think u mean to ask how to find which row is from which table as column names shud be same in all the tables u use for union

by seeing result, u cant find which table the row belongs. But to do that, u have an indirect method

Select EmpNo, EmpName, "T1" as TableName from Table1
union Select EmpNo, EmpName, "T2" as TableName from Table2

by executing the above query, u will get an additional column, which denotes which table that particular row is from.
Back to top
View user's profile Send private message
paru

New User


Joined: 24 Jun 2005
Posts: 9
Location: INDIA

PostPosted: Tue Aug 30, 2005 11:02 am    Post subject:
Reply with quote

Hi Vasanth

a small correction to the query u posted..
"Select EmpNo, EmpName, "T1" as TableName from Table1
union Select EmpNo, EmpName, "T2" as TableName from Table2 "

I think the correct query is
"Select EmpNo, EmpName,as "T1" from Table1
union Select EmpNo, EmpName,as "T2" from Table2

This is how i think it shud be.Corrections are welcome!

Regards,
Paru
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> DB2 All times are GMT + 6 Hours
Page 1 of 1

 

Search our Forum:

Similar Topics
Topic Author Forum Replies Posted
No new posts unload data from table with lob columns farhad_evan DB2 0 Sat Apr 22, 2017 1:32 pm
No new posts Data replication from multiple Db2 ta... kishpra DB2 9 Mon Mar 27, 2017 9:58 pm
No new posts how to send just 10 rows in a CICS sc... Megha Gupta CICS 5 Thu Feb 23, 2017 6:57 pm
No new posts Join of more than one table dibyendumandal11111 DB2 6 Mon Feb 13, 2017 11:36 pm
No new posts SQL query to run through list of valu... Ni3-db2 DB2 14 Wed Dec 14, 2016 9:52 am


Facebook
Back to Top
 
Mainframe Wiki | Forum Rules | Bookmarks | Subscriptions | FAQ | Tutorials | Contact Us