Reorganizing a table space

Use the DB2 for OS/390 Reorganize Table Space Data Warehouse Center program to reorganize a table space or index to improve access performance and to reclaim fragmented space. In addition, you can reorganize a single partition of either a partitioned index or a partitioned table space.

Authorities and privileges

To reorganize a table space:

1. Open the step notebook.

2. Specify information for your step:

   • In the Name field, you can type a new name for the step. Otherwise, you can keep the name that the Data Warehouse Center automatically supplied for the step. This field is required.
     

   • In the Administrator field, type the name of the person who is responsible for the maintenance of this step. This field is optional.
     
   • In the Description field, type a business description for your step. This description can be a maximum of 255 characters. This field is optional.
     
   • In the Notes field, type detailed information that might be helpful to users who can access this step. This field is optional.
3. On the Parameters page, double-click the Parameter value field to enter the information for the particular parameter name shown in the Parameter name field.

4. On the Processing Options page, in the Agent Site list, select an agent site where you want your step to run. The selections in this list are agent sites that are common to the source tables, the target table, and the transformer or program that you are defining.

5. If you want to be able to to run your step at any time, select the Run on demand checkbox. Your step must be in test or production mode before you can run it.

6. Optional: Select the Populate externally check box if the step is populated externally, meaning that it is invoked in some way other than by the Data Warehouse Center. The step does not have to have any other means of running in the Data Warehouse Center in order for you to change the mode to production.

   If Populate externally is not selected, you can change the mode to production only if one of the following conditions is true:

   The step must is associated with a schedule.

   The step is linked to a transient table that is input to another step.

   The step started by another program.

7. In the Retry area, specify how many times you want the step to run again if it needs to be retried and the amount of time that you want to pass before the next run of the step.

8. Click OK to save your changes and close the step notebook.

Related information

Moving and transforming data

Population type descriptions

List of steps and step subtypes

Data Warehouse Center concepts