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LOB Migration from Sybase to UDB

Started May 15, 2008

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Profile Information

Full Name:
Darshan Vaishnav
Job Title:
Sr. Database Anaylyst
Marriott International
Platforms of Interest:

Darshan's Blog

Some strange issue in Redirected restore... part-1

Posted on August 5, 2009 at 11:09pm 0 Comments

Ok so here is the scenario..

- Have database1 in db2inst1

- Took a offline (cold) backup of database1

- did redirected restore to clone database1 in to database2 in same instance

- set tablespace containers, worked just fine , no errors.

- roll forward database to end of logs and complete , worked fine no errors

Now problem starts. When app folks told me they are missing some data, which was simply not visible to me because I did cold backup and then… Continue

Stupid issue in accessing tables !!

Posted on May 6, 2009 at 10:00am 2 Comments

Stupid me.. !! And I guess thats how I learn new things... !!

I got a request from our performance team that we have to move tables from default tablespace to new tablespace to improve performance.

So I did following

1. Created a duplicate tables

2. Preserved data by "insert into temp select * from main"

3. generated DDL with grants,aliases etc.

4. change the tablespace name in DDL

5. Drop main tables

6. Created new tablew with modified… Continue

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At 7:15am on October 5, 2010, Luyza Tavares Alexandre said…
Cheers! Very happy with new work, thank you.

That's what i did with my containers. All allocated ;)

So, another question. Could i duplicate database through container physical copy? I can do it in Oracle and works!

I did that test at home, works, but i'm in doubt about future problems.

Thanks Darshan, have a nice week.
At 2:05pm on September 27, 2010, Luyza Tavares Alexandre said…
Hey, where are you dear?
All container allocated with IBM Support help ;)

At 4:24pm on September 21, 2010, Luyza Tavares Alexandre said…
Hey Darshan, how are you? Do you remember me?
I'm working with db2 now! There are 2 months.

Data Warehouse: Cognos + DB2;

What you think? Did you already work with data warehouse enviroments?

I need to allocate containers for my production enviroments this week and i'm really in doubt about "Rebalancing Containers". Should i to allocate all containers that i can once or to allocate after when i need;

What is the exactly the cost of rebalancing containers for data warehouse enviroments?

Could you help me? My email:

Thanks ;)

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