Performing Reorganizations

Table of Contents

Performing Garbage Collections
Performing File Format Conversions
Procedure for Performing File Format Conversions
Example for Changing Data Set Physical Options
Example for Changing the Set-Subset Physical Options
Example for Changing the MODULUS Attribute on an Access
Performing Record Format Conversions
Procedure for Performing Record Format Conversions
Example for Changing the Data Set Record Format
Example for Changing the Data Set Record Format of a Remap
Example for Deleting Embedded Structures
Example for Deleting a Link Item
Example for Changing Global Data
Reorganizing Hierarchies
Using the AUTOREORG Option
Using the INITIALIZENEW Option

During a reorganization of a database, changes can be made to the format of database files and records. The following three forms of reorganization are available:

  • Garbage collection

  • File format conversion

  • Record format conversion

The following restrictions apply to all forms of reorganization:

  • A data set cannot be modified using any form of reorganization if it is partitioned, embedded in a partitioned data set, pointed to by a link item contained in a partitioned data set, or referred to by a set or subset which is partitioned.

  • A set or subset cannot be modified using the reorganization process if it is partitioned or embedded in a partitioned data set.

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