TurboIMAGE/XL Database Management System Reference Manual (30391-90012)
Table Of Contents
- 1 Introduction
- 2 Database Structure and Protection
- 3 Defining a Database
- 4 Using the Database
- 5 TurboIMAGE/XL Library Procedures
- Using TurboIMAGE/XL Intrinsics
- DBBEGIN
- DBCLOSE
- DBCONTROL
- DBDELETE
- DBEND
- DBERROR
- DBEXPLAIN
- DBFIND
- DBGET
- DBINFO
- INTRINSIC NUMBER 402
- Syntax
- Parameters
- Discussion
- Mode 101: Item Number
- Mode 102: Item Name
- Mode 103: Items in Database
- Mode 104: Items in Data Set
- Mode 113: BTREEMODE1 and Wildcard Character
- Mode 201: Set Number
- Mode 202: Set Name
- Mode 203: Sets in Database
- Mode 204: Sets with Item
- Mode 205: Set Capacity
- Mode 206: Number of Data Set Chunks
- Mode 207: Size of Data Set Chunks
- Mode 208: Primary and Actual Capacity
- Mode 209: B-Tree Attachment
- Mode 301: Paths
- Mode 302: Key or Search Item
- Mode 401: Logging
- Mode 402: ILR
- Mode 403: Dynamic Roll-Back
- Mode 404: Logging Subsystem Information
- Mode 406: Database Information
- Mode 501: Subsystem Access
- Mode 502: Critical Item Update
- Modes 8nn: Third-Party Indexing
- Mode 901: Language
- DBLOCK
- DBMEMO
- DBOPEN
- DBPUT
- DBUNLOCK
- DBUPDATE
- DBXBEGIN
- DBXEND
- DBXUNDO
- 6 Host Language Access
- Model Program
- ORDERS Database Model Program
- Main Body of Program
- Opening the Database
- Retrieving All the Records on a Chain (with Item Level Locking)
- Retrieving a Data Entry Using a Record Number
- Retrieving Master Data Using a Key Value
- Retrieving Data Serially (with Set Level Locking)
- Adding an Entry
- Updating an Entry
- Deleting an Entry
- Rewinding a Data Set
- Obtaining Database Information
- Obtaining Error Messages and Explanations
- Closing the Database
- C
- COBOL II
- Defining Data Types, Variables, and Intrinsics
- Main Body of Program
- Opening the Database
- Retrieving All the Records on a Chain (with Item Level Locking)
- Retrieving a Data Entry Using a Record Number
- Retrieving Master Data Using a Key Value
- Retrieving Data Serially (with Set Level Locking)
- Adding an Entry
- Updating an Entry
- Deleting an Entry
- Rewinding a Data Set
- Obtaining Database Information
- Obtaining Error Messages and Explanations
- Closing the Database
- FORTRAN 77
- Pascal
- RPG
- 7 Logging and Recovery
- Database Utilities Used in Logging and Recovery
- Recovery Options
- Logical Transactions
- Dynamic Roll-Back Recovery
- Intrinsic Level Recovery
- Logging Preparation
- Step 1--Checking MPE/iX Logging Configuration
- Step 2--Acquiring Logging Capability
- Step 3--Logging to Tape or Disk
- Step 4--Building a Log File for Logging to Disk
- Step 5--Creating the Log Identifier
- Step 6--Setting the Log Identifier
- Step 7--Setting Flags for the Database Backup Copy
- Step 8--Making a Database Backup Copy
- TurboSTORE/iX 7x24 True-Online Backup
- Logging Status
- Logging Maintenance
- Roll-Forward Recovery
- Roll-Back Recovery
- DBRECOV Commands Used with Roll-Forward and Roll-Back Recovery
- Recovery Tables
- Post-Recovery Options
- The Mirror Database
- 8 Using the Database Utilities
- Restructuring the Database with TurboIMAGE/XL Utilities
- Summary of Utility Routines
- Utility Program Operation
- DBLOAD
- DBRECOV
- >CONTROL
- >EXIT
- >FILE
- >RECOVER
- >ROLLBACK
- >RUN
- DBRESTOR
- DBSTORE
- DBUNLOAD
- DBUTIL
- >>ACTIVATE
- >>ADDINDEX
- >>CREATE
- >>DEACTIVATE
- >>DETACH
- >>DISABLE
- >>DROPINDEX
- >>ENABLE
- >>ERASE
- >>EXIT
- >>HELP
- >>MOVE
- >>PURGE
- >>REBUILDINDEX
- >>REDO
- >>RELEASE
- >>SECURE
- >>SET
- >>SHOW
- Syntax
- Parameters
- Example (Show Users)
- Example Discussion
- Example (Show All)
- Example Discussion
- Example (Show Capacity)
- Format of Show Device List
- Example (Show Device)
- Format of Show Indices
- Example (Show Indices)
- Format of Show Locks List
- Example 1 (Show Locks)
- Example 1 Discussion
- Example 2 (Show Locks)
- Example 2 Discussion
- >>VERIFY
- 9 Using a Remote Database
- 10 Internal Structures and Techniques
- 11 B-Tree Indices
- A Error Messages
- B Results of Multiple Access
- C Database Design Considerations
- D Multiple Calls to DBLOCK
- E TurboIMAGE/XL Log Record Formats
- F MPE/iX Log Record Formats
- G Recovery and Logging Quick Reference
- H TurboIMAGE/XL versus TurboIMAGE/V

Chapter 3 89
Defining a Database
Schema Processor Output
Schema Processor Example
Figure 3-5. contains the list file output printed when the schema of the sample ORDERS
database is processed. The database has 5 passwords and contains 23 data item definitions
and 6 data set definitions. The Schema Processor summary information is printed
following the schema.
Figure 3-5. ORDERS Database Schema ORDERS Database Schema
PAGE 1 HEWLETT-PACKARD 30391C.05.00 TurboIMAGE/3000: DBSCHEMA
MON, JAN 10, 1994, 3:32 PM (C) HEWLETT-PACKARD CO. 1987
$CONTROL LIST,LINES=46
$PAGE "SCHEMA FOR DATABASE ORDERS"
BEGIN DATABASE ORDERS;
PASSWORDS:
11 CREDIT; << CUSTOMER CREDIT OFFICE >>
12 BUYER; << BUYER - RESPONSIBLE FOR PARTS INVENTORY >>
13 SHIP-REC; << WAREHOUSE - SHIPPING AND RECEIVING >>
14 CLERK; << SALES CLERK >>
18 DO-ALL; << FOR USE BY MGMT >>
ITEMS: << IN ALPHABETICAL ORDER FOR CONVENIENCE >>
ACCOUNT, J2 ; << CUSTOMER ACCOUNT NUMBER>>
BINNUM, Z2 (/13); << STORAGE LOCATION OF PROD>>
CITY, X12 (12,13,14/11); << CITY>>
CREDIT-RATING, R2 (/14); << CUSTOMER CREDIT RATING>>
DATE, X6 ; << DATE (YYMMDD)>>
DELIV-DATE, X6 (/14); << DELIVERY DATE (YYMMDD)>>
DESCRIPTION, X20 ; << PRODUCT DESCRIPTION>>
FIRST-NAME, X10 (14/11); << CUSTOMER GIVEN NAME>>
INITIAL, U2 (14/11); << CUSTOMER MIDDLE INITIAL>>
LAST-NAME, X16 (14/11); << CUSTOMER SURNAME>>
LASTSHIPDATE, X6 (12/ ); << DATE LAST REC D(YYMMDD)>>
ONHANDQTY, J2 (14/12); << TOTAL PRODUCT INVENTORY>>
PRICE, J2 (14/); << SELLING PRICE (PENNIES)>>
PURCH-DATE, X6 (11/14); << PURCHASE DATE (YYMMDD)>>
QUANTITY, I (/14); << SALES PURCHASE QUANTITY>>
STATE, X2 (12,13,14/11); << STATE -- 2 LETTER ABB>>
STOCK#, U8 ; << PRODUCT STOCK NUMBER>>
STREET-ADDRESS, X26 (12,13,14/11); << NUMBER AND STREET ADDRESS>>
SUPPLIER, X16 (12,13/); << SUPPLYING COMPANY NAME>>
TAX, J2 (14/); << SALES TAX (PENNIES)>>
TOTAL, J2 (11,14/); << TOTAL AMOUNT OF SALE(PENNIES)>>
UNIT-COST, P8 (/12); << UNIT COST OF PRODUCT>>
ZIP, X6 (12,13,14/11); << ZIP CODE>>
SETS:
NAME: DATE-MASTER,AUTOMATIC,DISC1; <<DATE MASTER>>
ENTRY: DATE(3);
CAPACITY: 365;