The IBM DB2 Enterprise Server Edition is a relational model database server developed by IBM. It primarily runs on Unix (namely AIX), Linux, IBM i (formerly OS/400), z/OS and Windows servers.

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How can you tell if a table in DB2 has a Primary Key?

We are using a tool that requires specific tables in our DB2 database to have a Primary Key defined. Is there a way using a select statement on the DB to see if a given table has one? Thanks.
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What specific tests need to be performed under Database migration from DB2 to Oracle?

Currently I am going to be testing (I am a Data Analyst) of a larger migration project where they are planning to migrate from DB2 to Oracle. My question may be little broader; however any ...
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1answer
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Is there a way to edit the System Database Directory for DB2 to remove a database?

We have a case where we want to try to get rid of a database. The database still exists on disk and when we catalog it, it re-appears in the Database Manager. But when we try to do a DROP on it, it ...
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1answer
519 views

What are the best practices for ETL of data from one OLTP system to another, Part 2?

Ok, I originally started a question a ways back called "What are the best practices for ETL of data from one OLTP system to another?". And as you can probably tell from most of my questions so far, ...
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2answers
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DB2 Trigger: only update current row

I've created following trigger : CREATE TRIGGER probeer2 AFTER INSERT ON libtn01leb.kofax_release FOR EACH ROW UPDATE libtn01leb.kofax_release SET RRNR='bleh' This trigger will update EVERY ...
2
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1answer
884 views

What are the best practices for ETL of data from one OLTP system to another?

First off, I want to post that I am a developer and not a DBA, so I am trying to approach this from the standpoint of what is the best thing to do, rather than just assuming I can do everything ...
4
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2answers
494 views

What is the best practice for mapping from natural keys to integer-based keys? (ETL)

This question originates more from an "enterprise architecture" point of view. (Reason being, our company is just starting to get into data management, and actually having DBA's -- I know, horrific ...
2
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1answer
241 views

How do you convert IBM DB2's recursive increment to MySQL version?

DB2 Queries: WITH TABLE1 (YEAR_END) as( VALUES (2011)) , TABLE2 (YEAR_END) AS ( VALUES(2011)) , TABLE3 (YEARS) AS ( SELECT 0+2008 FROM TABLE1 T1, TABLE2 T2 union ...
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1answer
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Migration from DB2 to MySQL

Does any one have experience on migration from DB2 to MySQL ? Please share with me. I tried googling, but I have not received much information on this.
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0answers
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If anyone has experience about bugs ,problems or any related link of DB2 v.10 FOR ZOS , please reply? [closed]

Hi I want to use db2 10 for zos. If anyone has experience about bugs ,problems or any related link of DB2 v.10, please reply? thanks for your attention.
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1answer
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What does TBSCAN GENROW mean in Explain Plan?

In a DB2 Explain Plan, what does TBSCAN GENROW (line 5 below) mean? SELECT STATEMENT ( Estimated Costs = 1.811E+03 [timerons] ) 1 RETURN 2 NLJOIN 3 [O] TBSCAN 4 SORT ...
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3answers
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How do I join two tables on two different instances of DB2?

There are two instances of DB2 running on the same machine. One has a table aliased to the a table in the other one. Is there a way to do this in DB2 or does it have to be done via an external tool? ...
5
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4answers
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Emulate REGEXP like behaviour in DB2 SQL

I posted the same on stackoverflow (please, let me know if I have to delete one). I'm working on a DB2 database and as far as I can see regexp is not supported (without additional libraries). So I ...
5
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1answer
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BLOB on DB2 v9 on z/OS

What are cons and pros of using BLOBs on DB2 v9 (or later) on z/OS? Clarification: are there some limits (like influence on reorg, HA)? We would like to store large amount of files: 10 millions in ...
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1answer
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What does HSJOIN mean in an Explain Plan?

I have the following EXPLAIN PLAN results from a query on my DB2 database. 0 SELECT STATEMENT ( Estimated Costs = 5.928E+02 [timerons] ) 1 RETURN 2 HSJOIN 3 [O] ...