You can create an index by searching table data and generating index information. This is called index re-creation.

You can re-create an index in units of indexes or index storage RDAREAs.

The figure below provides an overview of index re-creation.

Figure 8-11 Overview of index re-creation

• Index information file
  The index information file contains information about an index that was generated by searching table data.
  
• Control statement file
  The control statement file contains pdrorg's control statements.
  The control statements are used to specify index information.