CONTENTS

  Title Page

  Copyright Page

  Preface

  Part I    General DEC DATATRIEVE Concepts

  1      Introduction to DEC DATATRIEVE

  1.1     What is DEC DATATRIEVE?

  1.2     Commands and Statements

  1.3     Command Files and DEC DATATRIEVE Procedures

  1.4     Character Set

  1.5     Keywords

  1.6     Names

  1.7     Termination and Continuation Characters

  1.8     Entering Long Command Lines

  1.9     Turning Off the ``Looking for...'' Messages

  1.10    Comments

  1.11    Current Objects

  1.12    Using Help
    1.12.1     Getting Help on Errors
    1.12.2     Using DEC DATATRIEVE Help in a DECwindows Motif Environment

  1.13    Application Design Tool (ADT)

  1.14    Guide Mode

  1.15    Using Editors Within DEC DATATRIEVE
    1.15.1     Changing the default editor

  1.16    Using the DEC DATATRIEVE EDIT Command
    1.16.1     Editing a Dictionary Object Specified by Path Name
    1.16.2     Editing by Types of Objects Within DEC DATATRIEVE
    1.16.3     Using EDIT to Recover from a System Failure

  1.17    Editing in a DECwindows Motif Environment

  1.18    The Sample Domains, Records, and Data Files

  1.19    Setting up a Oracle CDD/Repository Environment

  1.20    Improving Screen Displays and Controlling Output
    1.20.1     Adjusting Screen Width and the Columns Page Setting
    1.20.2     Using the LIST Statement
    1.20.3     Using Concatenation Characters to Conserve Line Space

  1.21    Using the Computer Based Training Package

  Part II    Data Definitions (Describing Data)

  2      Record Definitions

  2.1     Defining a Record
    2.1.1      Field Levels
    2.1.2      Level Numbers
    2.1.3      Elementary and Group Fields
    2.1.4      Field Classes
    2.1.5      Field Names
    2.1.6      Differences Between Record Name and Top-Level Field

  2.2     Using Column Headers
    2.2.1      Using FILLER Fields
    2.2.2      Overriding Column Header Defaults with the PRINT Statement

  2.3     The Important Field Definition Clauses
    2.3.1      Specifying a PIC Clause
    2.3.2      The USAGE Clause
    2.3.3      Date Fields
    2.3.4      Virtual (COMPUTED BY) Fields
    2.3.5      Using the REDEFINES Clause
    2.3.6      Specifying Fixed and Variable Occurrence Lists
    2.3.7      Defining Sublists

  2.4     Formatting Field Values Using the EDIT_STRING Clause

  2.5     Defining Data with DEC DATATRIEVE and Oracle CDD/Repository
    2.5.1      Including Validation Requirements
    2.5.2      Initializing Field Values

  2.6     Specifying Values to be Ignored in Statistical Computations

  2.7     Including CDO-Defined Field-Level Definitions

  2.8     Editing Record Definitions

  3      Defining Domains

  3.1     Reviewing the Requirements

  3.2     Analyzing the Data

  3.3     Grouping Fields into Domains and Tables

  3.4     Defining a Domain

  3.5     Naming the Domain

  3.6     Specifying the Record Name

  3.7     Specifying the Data File
    3.7.1      Determining Which Parts of the File Specification to Include
    3.7.2      Avoiding Problems When Naming Files

  3.8     Using the WITH RELATIONSHIPS Clause

  4      Defining Data Files

  4.1     Organizing Files

  4.2     Defining Sequential Files

  4.3     Defining Indexed Files
    4.3.1      Selecting the Primary Key
    4.3.2      Selecting Alternate Keys
    4.3.3      Selecting Group Field Keys

  4.4     Designing Files
    4.4.1      Using EDIT/FDL to Design Your File
    4.4.2      Creating the Data File

  4.5     Planning for File Maintenance
    4.5.1      Using RMS Utilities to Load and Maintain Files

  4.6     Restructuring Data
    4.6.1      Changing Only File Organization, Storage Options, and Keys
    4.6.2      Changing Fields Defined in the Record Definition
    4.6.3      Restructuring a Domain

  4.7     A Sample Domain

  4.8     Adding Fields to a Record Definition

  4.9     Entering Data in the New File

  4.10    Creating Record Subsets

  4.11    Combining Data from Two or More Domains

  4.12    Using the Alias Clause to Restructure a Domain

  4.13    Changing the Organization of a Data File

  5      Defining Tables

  5.1     Creating Dictionary Tables

  5.2     Modifying the Table

  5.3     Creating Domain Tables

  5.4     Using Tables

  5.5     Using DEC DATATRIEVE Tables
    5.5.1      Accessing Values in Tables
    5.5.2      Validating Values with Tables
    5.5.3      Using Domain Tables Based on Relational Sources

  5.6     Choosing Between Dictionary and Domain Tables

  Part III    Data Management (Storing, Managing, Reading, Erasing, RSEs)

  6      Starting and Ending Access to Data

  6.1     Readying Domains
    6.1.1      Readying Domains Defined with Relationships
    6.1.2      Readying a CDD$RMS_DATABASE
    6.1.3      Defining Your Own Default Access

  6.2     Finishing Domains

  7      Record Selection Expressions

  7.1     The RSE Format

  7.2     Specifying the Source of Records
    7.2.1      Domains as Sources of Record Streams
    7.2.2      Collections as Sources of Record Streams
    7.2.3      Lists as Sources of Record Streams
    7.2.4      Using Relations and Oracle CODASYL DBMS Records as Sources of Record Streams
      7.2.4.1      MEMBER Clause
      7.2.4.2      OWNER Clause
      7.2.4.3      WITHIN Clause

  7.3     Displaying All the Records in a Domain

  7.4     Limiting the Number of Records in the Record Stream

  7.5     Joining Records from Two or More Sources
    7.5.1      Crossing Two Domains
    7.5.2      Crossing More Than Two Domains
    7.5.3      Crossing a Domain with Itself
    7.5.4      Using the CROSS Clause Instead of Nested FOR Loops
    7.5.5      Using CROSS to Flatten Hierarchical Domains

  7.6     Identifying the Records That Meet a Test
    7.6.1      Comparing Records by Pattern Recognition
    7.6.2      Grouping Records When Values Fall Within a Range
    7.6.3      Grouping Records Based on a MISSING VALUE Clause
    7.6.4      Grouping Records by Reference to a Table
    7.6.5      Setting Up Multiple Tests with Compound Booleans

  7.7     Finding a Unique Field Value in a Record Stream

  7.8     Sorting the Record Stream by Field Values

  8      Maintaining Data

  8.1     Using the STORE Statement

  8.2     Using Direct Assignments

  8.3     Using DEC DATATRIEVE Prompts

  8.4     Modifying Data

  8.5     Modifying Records in the CURRENT Collection

  8.6     Modifying Records in a Record Selection Expression

  8.7     Ensuring Valid Values

  8.8     Erasing Records

  9      Compound Statements

  9.1     Using the REPEAT Statement

  9.2     Using the FOR Statement

  9.3     Using a BEGIN-END Block

  9.4     Using the WHILE Statement

  9.5     Using IF-THEN and IF-THEN-ELSE Statements

  9.6     Using the CHOICE Statement

  9.7     Using the Keyword THEN

  9.8     Using the AT TOP and AT BOTTOM Clauses
    9.8.1      RUNNING COUNT and RUNNING TOTAL Used with Conditional Statements and Expressions

  9.9     Avoiding Looping Mistakes

  10     Using DEC DATATRIEVE Procedures

  10.1    Defining a Procedure

  10.2    Editing a Procedure

  10.3    Invoking a Procedure

  10.4    Contents of a Procedure
    10.4.1     Commands and Statements
    10.4.2     Arguments and Clauses
    10.4.3     Comments

  10.5    Aborting Procedures

  10.6    Executing a Procedure Repeatedly

  10.7    Generalizing Procedures

  10.8    Protecting Procedures

  10.9    Getting a Procedure to Work the Way You Want
    10.9.1     Writing a Session Log to a File

  10.10   Invoking a Command File from DEC DATATRIEVE

  11     Accessing Data the Easy Way: Using Collections

  11.1    Specifying Records in a Collection

  11.2    Forming and Naming Collections

  11.3    Choosing a Target Record for an Operation

  11.4    Restricting Record Fields in a Collection

  11.5    Sorting Records in a Collection

  11.6    Forming a Collection from Two or More Record Sources

  11.7    Removing Records from a Collection

  11.8    Removing Collections from Your Workspace

  11.9    Disadvantages of Using Collections

  12     Accessing Data the Expert Way:  Using RSEs and View Domains

  12.1    Ensuring Fast Access

  12.2    Creating RSEs

  12.3    Working with Multiple Records
    12.3.1     FOR Statement Looping Errors
    12.3.2     CROSS Clause Looping Errors
    12.3.3     Lists:  Using the ``Record'' Within the Record

  12.4    Creating View Domains

  12.5    Views Using Subsets of Records

  12.6    Views Using Subsets of Fields

  12.7    Views Using More Than One Domain
    12.7.1     Creating Hierarchies With View Domains

  12.8    Using Views with Remote Domains

  12.9    Access Privileges Needed for Using Views

  12.10   Restrictions on Views with No Physical Record Source

  13     Reporting Hierarchical Records

  13.1    Retrieving Values from Repeating Fields
    13.1.1     Using FIND and SELECT
    13.1.2     Using Nested FOR Loops
    13.1.3     Using Inner Print Lists
    13.1.4     Using Context Searcher

  13.2    Retrieving Repeating Field Values by Flattening Hierarchies
    13.2.1     Using the CROSS Clause
    13.2.2     Using Inner Print Lists
    13.2.3     Using Nested FOR Statements
    13.2.4     Restructuring a Hierarchical File to a Flat File

  13.3    Modifying Values Stored in Repeating Fields
    13.3.1     Modifying Repeating Field Values with FIND and SELECT
    13.3.2     Modifying Repeating Field Values with FOR and MODIFY
    13.3.3     Modifying Every Repeating Field Value with OF
    13.3.4     Changing the Length of a Variable-Length List

  13.4    Creating Hierarchies with Multiple RSEs
    13.4.1     Creating Hierarchies with View Domains
    13.4.2     Using Inner Print Lists to Create Dynamic Hierarchies
    13.4.3     Using Nested FOR Statements to Create Dynamic Hierarchies

  Part IV    Data Presentation

  14     Using the Report Writer

  14.1    What the Report Writer Can Do

  14.2    Designing a Report with the Report Writer

  14.3    Identifying the Data and Invoking the Report Writer

  14.4    Exiting from the Report Writer

  14.5    Setting Up the Report Heading

  14.6    Printing Detail Lines and Column Headers
    14.6.1     Column Headers for Print Items

  14.7    Creating Title Pages and Other Special Headings
    14.7.1     Creating a Title Page
    14.7.2     Creating Special Page Headings

  14.8    Creating End-of-page or End-of-report Summaries

  14.9    Producing Row Totals

  14.10   Developing a Procedure for a Report

  15     Report Writer Formats

  15.1    Report Writer Formats
    15.1.1     Page-based or Table-based Formats
    15.1.2     Digital's Compound Document Architecture (CDA)

  15.2    Producing High-quality Printouts
    15.2.1     Changing Font Attributes in a Report
    15.2.2     Using the Report Layout
    15.2.3     Changing Paper Size
    15.2.4     Formatting for DDIF and PostScript

  15.3    Using the TEXT format
    15.3.1     Formatting TEXT Reports
    15.3.2     Changing the Default Page Width and Length

  15.4    Reporting data for spreadsheets
    15.4.1     Formatting spreadsheets

  16     Report Writer Advanced Techniques

  16.1    Dividing Data Records into Control Groups
    16.1.1     Developing Levels of Control Groups Using Multiple Sort Keys
    16.1.2     Reporting Group Summaries Only

  16.2    Reporting Data Grouped by Date

  16.3    Summarizing Data
    16.3.1     COUNT, AVERAGE, and TOTAL
    16.3.2     Maximum Value, Minimum Value, and Standard Deviation

  16.4    Changing the Content of the Detail Line
    16.4.1     Field Values
    16.4.2     Value Expressions

  16.5    Format of Fields in the Detail Lines
    16.5.1     Column Position of Print Items
    16.5.2     Edit String Format of Print Items

  16.6    Printing a Variety of Detail Lines in One Report
    16.6.1     CHOICE Value Expression in COMPUTED BY Fields
    16.6.2     CHOICE Value Expression Within a PRINT Statement

  16.7    Using Report Writer to Flatten Hierarchies
    16.7.1     Using CROSS to Flatten the Hierarchy
    16.7.2     Accessing List Items with the SET SEARCH Command
    16.7.3     Using the REPORT Statement to Report List Data

  16.8    Using Report Writer with Other Database Products
    16.8.1     Writing a Simple Report with Oracle CODASYL DBMS Data
    16.8.2     Writing a Simple Report with Relational Data

  17     Using DEC DATATRIEVE Plots

  17.1    Hardcopy Output Devices

  17.2    Steps to Take Before Using DEC DATATRIEVE Plots

  17.3    Changing from a PRINT Statement to a Plot Statement
    17.3.1     Plot Statement Using Data from a Collection
    17.3.2     Plot Statement Using Data from RSE
    17.3.3     Same Plot Produced by FIND Statement and RSE

  17.4    Five Types of Relationship
    17.4.1     Time Comparisons (Line, Scatter, Bar Charts)
    17.4.2     Parts of the Whole (Pie, Bar Chart)
    17.4.3     Comparing Several Items (Bar, Pie Chart)
    17.4.4     Comparing Multiple Values (Line, Scatter, Bar Chart)
    17.4.5     Frequency Distribution (Histogram)

  17.5    Designing and Improving Plots
    17.5.1     Guidelines for Designing Plots

  17.6    Labels with DEC DATATRIEVE Plots
    17.6.1     Default Labels
    17.6.2     Specifying Label Strings
    17.6.3     Eliminating Scientific Notation

  17.7    Using DEC DATATRIEVE Plots with Other Database Products
    17.7.1     Using DEC DATATRIEVE Plots with Oracle CODASYL DBMS
    17.7.2     Using DEC DATATRIEVE with Relational Databases

  18     DEC DATATRIEVE Plot Types

  18.1    Bar charts
    18.1.1     PLOT BAR
    18.1.2     PLOT BAR_AVERAGE
    18.1.3     PLOT HISTO
    18.1.4     PLOT MULTI_BAR
    18.1.5     PLOT MULTI_BAR_GROUP
    18.1.6     PLOT NEXT_BAR
    18.1.7     PLOT RAW_BAR
    18.1.8     PLOT STACKED_BAR

  18.2    Line graphs
    18.2.1     PLOT MULTI_LINE
    18.2.2     PLOT MULTI_LR
    18.2.3     PLOT MULTI_SHADE

  18.3    Scattergraphs
    18.3.1     PLOT DATE_LOGY
    18.3.2     PLOT DATE_Y
    18.3.3     PLOT LOGX_LOGY
    18.3.4     PLOT LOGX_Y
    18.3.5     PLOT X_LOGY
    18.3.6     PLOT X_Y

  18.4    Pie charts
    18.4.1     PLOT PIE
    18.4.2     PLOT RAW_PIE
    18.4.3     PLOT VALUE_PIE

  18.5    Utilities
    18.5.1     PLOT BAR_ASCENDING
    18.5.2     PLOT BIG
    18.5.3     PLOT CONNECT
    18.5.4     PLOT CROSS_HATCH
    18.5.5     PLOT HARDCOPY
    18.5.6     PLOT LEGEND
    18.5.7     PLOT LIMITS_X and PLOT LIMITS_Y
    18.5.8     PLOT LR
    18.5.9     PLOT MONITOR
    18.5.10    PLOT PAUSE
    18.5.11    PLOT REFERENCE_X and PLOT REFERENCE_Y
    18.5.12    PLOT RE_PAINT
    18.5.13    PLOT SHADE
    18.5.14    PLOT SORT_BAR
    18.5.15    PLOT TITLE
    18.5.16    PLOT WOMBAT

  18.6    Using Utilities with other Plot Statements

  Part V    Advanced Topics

  19     Using DEC DATATRIEVE with the Oracle CDD/Repository Dictionary System

  19.1    What is the Oracle CDD/Repository Dictionary System?

  19.2    The Oracle CDD/Repository Dictionary System Structure
    19.2.1     CDO Format Dictionaries
    19.2.2     DMU Format Dictionaries
    19.2.3     Distinguishing CDO Objects from DMU Objects in SHOW Command

  19.3    The Compatibility Dictionary

  19.4    DEC DATATRIEVE and Oracle CDD/Repository

  19.5    Integrating CDO and DMU Definitions in Applications

  19.6    How DEC DATATRIEVE Determines Dictionary Destination

  19.7    Converting DMU Definitions to CDO Format Definitions
    19.7.1     Using the DEC DATATRIEVE EDIT Command to Convert Definitions
    19.7.2     Using the DEC DATATRIEVE EXTRACT Command to Convert Definitions

  19.8    Choosing a Dictionary Format

  19.9    Creating and Using Oracle CDD/Repository Path Names
    19.9.1     Rules for Naming Oracle CDD/Repository Objects and Directories
    19.9.2     Abbreviating Oracle CDD/Repository Path Names
    19.9.3     Using Logical Names
      19.9.3.1     Logical Names in Dictionary Path Names
      19.9.3.2     Using Logicals for Search Lists

  19.10   Setting Dictionary Location

  19.11   Deleting, Purging, and Extracting Definitions

  20     Using DEC DATATRIEVE with a CDO Format Dictionary

  20.1    Organization of a CDO Format Dictionary

  20.2    Displaying Information About Directories, Objects, and Session Defaults

  20.3    Creating Dictionaries and Dictionary Directories

  20.4    Deleting CDO Dictionaries and Dictionary Directories

  20.5    Defining DEC DATATRIEVE Objects for CDO Format Dictionaries
    20.5.1     Defining DEC DATATRIEVE Domains in CDO Format
    20.5.2     Defining DEC DATATRIEVE Records in CDO Format
    20.5.3     Defining Data Files for CDO Format Domains

  20.6    Readying CDO Format Domains

  20.7    The DEC DATATRIEVE CDO Command

  21     Using DEC DATATRIEVE with a DMU Format Dictionary

  21.1    Organization of the DMU Format Dictionary

  21.2    Creating DMU Format Dictionary Directories

  21.3    Deleting Dictionary Directories

  21.4    Using Oracle CDD/Repository to Design System-Wide Applications

  22     Improving DEC DATATRIEVE Performance

  22.1    Redesign and Maintenance
    22.1.1     Adding Data to the File

  22.2    Using the OPTIMIZE Qualifier to Improve Performance

  22.3    Choosing Optimal Queries
    22.3.1     Using EQUAL Rather Than CONTAINING
    22.3.2     Using STARTING WITH Rather Than CONTAINING
    22.3.3     Using Domains Rather Than Collections in an RSE
    22.3.4     Using the CROSS Clause and Nested FOR Loops
    22.3.5     Choosing Domains or Collections as Record Sources
    22.3.6     Choosing the Order of Domain Names in the CROSS Clause
    22.3.7     Order of Domains in Nested FOR Loops
    22.3.8     Nested FOR Loops Followed by a Conditional Statement

  22.4    Performance Enhancements for Certain Oracle CDD/Repository Dictionary Operations

  22.5    Performance Enhancements for Databases

  22.6    Timing Procedures to Improve Efficiency

  22.7    DEC DATATRIEVE Evaluation of Compound Boolean Expressions

  22.8    Summary of Rules

  23     Access Control Lists and DEC DATATRIEVE Protection

  23.1    Access Control Lists
    23.1.1     An Overview of ACL Entries
    23.1.2     Displaying an Access Control List
    23.1.3     Hierarchical Protection in the DMU Dictionary
    23.1.4     Accumulation of Privileges in the DMU Dictionary
    23.1.5     Combinations of DMU ACL Entries
    23.1.6     Protection in the CDO Dictionary
    23.1.7     Summary of ACL Results

  23.2    The Parts of an ACL Entry
    23.2.1     User Identification Criteria
    23.2.2     Identifying Users by User name
    23.2.3     Identifying Users by the UIC
    23.2.4     Identifying Users by Rights Identifiers
    23.2.5     Identifying Users by the Password
    23.2.6     Identifying Users by the Terminal Number or Job Class
    23.2.7     DEC DATATRIEVE and Oracle CDD/Repository Privilege Specification

  23.3    Creating ACL Entries
    23.3.1     Suggestions for Assigning Privileges
    23.3.2     Sequence Number in the DEFINEP Command

  23.4    Removing Entries from an ACL

  A   Name Recognition and Single Record Context

  A.1     Establishing the Context for Name Recognition
    A.1.1      The Right Context Stack
      A.1.1.1      The Content of a Context Block
      A.1.1.2      Global Variables
      A.1.1.3      Collections
      A.1.1.4      Record Streams
      A.1.1.5      Local Variables
      A.1.1.6      VERIFY Clause in the STORE Statement
      A.1.1.7      VALID IF Clause in a Record Definition
    A.1.2      Using Context Variables and Qualified Field Names
      A.1.2.1      Context Variables as Field Name Qualifiers
      A.1.2.2      Other Field Name Qualifiers
      A.1.2.3      The Effect of the CROSS Clause on Name Recognition
    A.1.3      The Left Context Stack for Assignment Statements

  A.2     Single Record Context
    A.2.1      The SELECT Statement and the Single Record Context
    A.2.2      The CURRENT Collection as Target Record Stream
    A.2.3      The OF rse Clause and Target Record Streams
    A.2.4      FOR Statements and Target Record Streams

  B   DEC DATATRIEVE Restrictions and Usage Notes

  B.1     DEC DATATRIEVE Usage and OpenVMS Disk Quota Considerations

  B.2     Restriction on Concatenating Double-Precision Numbers

  B.3     Errors During STORE and MODIFY Statement Execution

  B.4     Restriction on Missing Values and Default Values

  B.5     Restriction on Modifying Facility-Specific Definitions

  B.6     Spurious Divide-by-Zero Errors

  B.7     Execution out of Sequence in Procedures

  B.8     Interactive Users Can Set Stack Size

  B.9     Clarification About Using Prompting Value Expressions

  Glossary

  EXAMPLES

  2-1        Level Numbers in the YACHT Record Definition

  2-2        Sample DEC DATATRIEVE Record Definition

  3-1        Defining a Sample Domain

  4-1        Defining a Data File

  4-2        Restructuring a Domain to Change File Organization

  4-3        Restructuring a Domain to Change the Record Definition

  5-1        Defining a Dictionary Table

  5-2        Defining a Domain Table

  5-3        Using Keywords to Access Values in Tables

  6-1        Starting and Ending Access to Data

  8-1        Modifying Records by First Creating a Collection

  8-2        Modifying Records in a FOR Statement RSE

  8-3        Erasing Records by First Creating a Collection

  11-1       Creating and Using a Collection

  11-2       PRINT ALL Example

  11-3       Restricting Record Fields

  11-4       Using the SORT Statement

  12-1       Including RSEs in Statements

  12-2       Accessing Values in List Fields

  13-1       PRINT Statement with Inner Print List

  14-1       Control Group Report Based on One Sort Key

  15-1       Example Report Changing Font Types for the Output

  15-2       Example Producing Layout Boxes

  15-3       Example Producing Layout Grid

  15-4       Report with Long Fields

  16-1       Control Group Report Based on Two Sort Keys

  16-2       Accounts Payable Report by Month

  FIGURES

  2-1        Structure of CURRENT_REC

  3-1        Domains and Tables in Sample Personnel System

  4-1        Flat File Structure

  4-2        A File with Two Levels of Index

  7-1        Joining Records from Two Domains

  13-1       Field Structure of EMP_REC

  14-1       Boardroom-quality Report

  14-2       Sample Title Page for a Report

  14-3       Example Postscript Report Header

  14-4       Field Structure of WAGES_REC

  15-1       Sample PostScript Output

  15-2       Layout Boxes

  15-3       Report with Background Grid

  15-4       Report Without WIDTH Clause

  15-5       Report with WIDTH Clause

  16-1       Field Structure of PERSONNEL_REC

  16-2       Field Structure of PAYABLES_REC

  16-3       Field Structure of SALES_REC

  16-4       Revised Field Structure of SALES_REC

  16-5       Control Group Report with Variety of Detail Lines

  17-1       Plot Produced by FIND Statement or RSE

  18-1       Relationship Between Utilities and Plots

  20-1       Sample CDO Format Dictionary

  21-1       Sample DMU Format Dictionary

  23-1       DMU Privileges Passed from Higher Directories

  23-2       DMU Privilege Inheritance in a Four-Level Hierarchy

  A-1        Duplicate Field Names in YACHTS and OWNERS

  TABLES

  1-1        Default File Types for Journal Files

  2-1        Field Classes

  2-2        Oracle CDD/Repository and DEC DATATRIEVE Data Types

  3-1        Fields for Personnel System

  12-1       Advantages and Disadvantages of Data Access Options

  14-1       Summary of Report Writer Statements

  16-1       Commission Schedule for the Sales Division

  17-1       Five Types of Relationships

  17-2       Bar Charts for Time Comparisons

  20-1       Names for DEC DATATRIEVE CDO Objects