Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17


Get DB2 tablespace during runtime

Posted on 2003-11-21
Medium Priority
Last Modified: 2011-10-03
Dear all,

Is there any method to know the DB2 tablespace during runtime? I am using Java application and SQLJ to access IBM DB2 V7.  My table is partitioned and I want my program to know if one partition is full, it can insert record to the next partition.  Does SQLJ provide any function to do so?

Thanks all.

Question by:helloyip
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2

Expert Comment

ID: 9812742
try using db2 list tablespaces. I dont know about SQLJ.

Basically paritioning key if defined, (feature of V8) distributes the load across various nodes. So it does not mean that the first tablespace is filled and it starts filling up the different nodes/tablespaces. If you wish to do it manually then you can think doing on these lines. ie.. checking the range of the partitioning key and inserting into the respective node/tablespace that houses that range of partitioning key values. This would help your performance also.


Author Comment

ID: 9816207
Thanks for your reply.  However, what I am seeking is the way to know the tablespace utilization at runtime using Java, so that I can avoid inserting record to the partition which is already or nearly out of disk space.  

Any other suggestion?


Expert Comment

ID: 9818158
I suppose you cannot do this manually. It should be done by the database.
if you wish to do it manually you should have access to use 'list tablespaces show detail'. Then looking at the upper water level mark you should decide whether the tablespace is filled. Then use some commands like use node1, export node1 and then load to that node.
LVL 18

Expert Comment

ID: 9862267
Did you try using SYSCAT.TABLESPACES catalog table to retrieve those informations ?
LVL 18

Accepted Solution

BigSchmuh earned 1500 total points
ID: 9888295
I apologize for my last post as SYSCAT.TABLESPACES will definitely not do the job.

But there is a way to do it using C (or C++) to build a stored procedure which you can call from SQLJ.

First, I will show you what the Administration API can do for you. Please find below the API to a C example of reading tablespaces informations (Free, Used, High watermark...)
and a link to the first API to use to read tbs info

Second, I will be pleased to show you how to build those those stored procedures if you want me to.
Third, I may although show you how to use those stored procedures from SQLJ but you probably know more than me about it.

Hope this helps.

Featured Post

Docker-Compose to Simplify Multi-Container Builds

Our veteran DevOps Author takes you through how to build a multi-container environment, managed with a single utility in order to simplify your deployments.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Recursive SQL in UDB/LUW (you can use 'recursive' and 'SQL' in the same sentence) A growing number of database queries lend themselves to recursive solutions.  It's not always easy to spot when recursion is called for, especially for people una…
Recursive SQL in UDB/LUW (it really isn't that hard to do) Recursive SQL is most often used to convert columns to rows or rows to columns.  A previous article described the process of converting rows to columns.  This article will build off of th…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…
Suggested Courses

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question