An Introduction to IMS: Your Complete Guide to IBMs Information Management System

Index

[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z]

HALDB Online Reorganization

     copying phase     cursor

     cursor-active status     ddname naming conventions

     initialization phase     overview

     termination phase

     unit of reorganization HALDB Partition Selection exit routine (DFSPSE00)

HALDBs (High Availability Large Databases)     indirect list data set (ILDS)     introduction to

     offline reorganization

     online reorganization

     partitions, naming conventions

    reorganizing         offline

         online

         secondary indexes     self-healing pointers

HDAM (Hierarchical Direct Access Method)     advantages and disadvantages

     free space

     layout of     overflow area

     overview of

     root addressable area

     when to choose

     z/OS access methods used

HDAM and PHDAM Randomizing routines (DFSHDC40)

HIDAM (Hierarchical Indexed Direct Access Method)

     advantages and disadvantages

     index database

     layout of 2nd

     overview of

     when to choose

hierarchical databases

     control blocks     data entry database (DEDB)     data structure

     Hierarchical Direct Access Method (HDAM)

     Hierarchical Indexed Direct Access Method (HIDAM)Hierarchical Databases

     Implementing

hierarchical databases

     model, implementing

     overview of

     Partitioned Hierarchical Direct Access Method (PHDAM)

     Partitioned Hierarchical Indexed Direct Access Method (PHIDAM)     relational database, compared to

     types, introduction toHierarchical Direct Access Method (HDAM)

     advantages and disadvantages     free space

     layout of

     overflow area     overview of

     root addressable area     when to choose     z/OS access methods used

Hierarchical Indexed Direct Access Method (HIDAM)

     advantages and disadvantages

     index database

     layout of 2nd     overview of

     when to choose

Hierarchical Indexed Sequential Access Method (HISAM) Hierarchical Sequential Access Method (HSAM)

High Speed Sequential Processing (HSSP) HISAM (Hierarchical Indexed Sequential Access Method)

history of IMS

HSAM (Hierarchical Sequential Access Method) hyphen command code