IBM Mainframe Forum Index
 
Log In
 
IBM Mainframe Forum Index Mainframe: Search IBM Mainframe Forum: FAQ Register
 

how to count total number of columns in DB2


IBM Mainframe Forums -> DB2
Post new topic   Reply to topic
View previous topic :: View next topic  
Author Message
jwell rymbei

New User


Joined: 14 Dec 2005
Posts: 22
Location: India

PostPosted: Thu Feb 23, 2006 6:14 pm
Reply with quote

hi,
our database have 220 tables. How can I count total number of columns in 220 tables.
Back to top
View user's profile Send private message
DavidatK

Active Member


Joined: 22 Nov 2005
Posts: 700
Location: Troy, Michigan USA

PostPosted: Thu Feb 23, 2006 8:02 pm
Reply with quote

jwell rymbei,

I think you're going to have to do something like this

Code:

SELECT SUM(A.R_C)  AS TOTAL_ROW_COUNT                                                 
  FROM                                                             
   (          SELECT COUNT(*) AS R_C FROM DB2.TABLE_1
    UNION ALL SELECT COUNT(*) AS R_C FROM DB2.TABLE_2
    UNION ALL SELECT COUNT(*) AS R_C FROM DB2.TABLE_3
    UNION ALL SELECT COUNT(*) AS R_C FROM DB2.TABLE_4                   
    ) A                                                             
;                                                                   


Best of luck,

Maybe someone can come up with a better way that you don't have to list each table.

Dave,
Back to top
View user's profile Send private message
jwell rymbei

New User


Joined: 14 Dec 2005
Posts: 22
Location: India

PostPosted: Thu Feb 23, 2006 8:55 pm
Reply with quote

select sum(colcount) from syscat.tables. i have tried with this and it worked fine.
Back to top
View user's profile Send private message
DavidatK

Active Member


Joined: 22 Nov 2005
Posts: 700
Location: Troy, Michigan USA

PostPosted: Thu Feb 23, 2006 9:03 pm
Reply with quote

Hi jwell rymbei,

I just tried your query on my system and got an undefined name for "syscat.tables", Our systems must be set up differently.

Dave,
Back to top
View user's profile Send private message
prabs2006

Active User


Joined: 12 Jan 2006
Posts: 103

PostPosted: Fri Feb 24, 2006 10:46 am
Reply with quote

Hi David,

Can you please tell me how does ur above query work?

T & R
Prabs
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic View Bookmarks
All times are GMT + 6 Hours
Forum Index -> DB2

 


Similar Topics
Topic Forum Replies
No new posts To get the count of rows for every 1 ... DB2 3
No new posts Pulling a fixed number of records fro... DB2 2
No new posts Substring number between 2 characters... DFSORT/ICETOOL 2
No new posts To find whether record count are true... DFSORT/ICETOOL 6
No new posts Generate random number from range of ... COBOL Programming 3
Search our Forums:

Back to Top