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
696 Index
Index
creating
a database, 309
creator, database, 379
critical item update, 448
D
data
chain, 478
prefetching, 428, 432
data set
creating, 424
expansion, 481, 493
initializing, 424
naming conventions, 424
purging, 441
reinitializing, 435
size, 683
space allocation, 495
database
administrator, access to log file, 404
attached to a DBEnvironment, 441
backup copy, 332
backup copy, flags, 330
backup using TurboSTORE/iX 7X24, 333
consistency, 315
creating, 309
creator, 379
detaching from a DBEnvironment, 441
exclusive control, 453
recovery options, 312
remote, 465, 658
restructure, 380
restructuring, 380
statistics, 363
storing, 408
utilities, 379
Database Buffer Area Control Block (DBB), 490
allocating buffers, 448
Database Globals Control Block (DBG), 490
Database System Control Block (DBS), 490
Database User Local Control Block (DBU), 490
Database User Local Index Control Block
(DBUX), 490
database-access (DBA) file
activate, 421
activating, 472
content, 468
creating, 469
deactivate, 426
deactivating, 473
name, 470
reporting, 463
syntax rules, 472
syntax verification, 472
using, 467
DBB
allocating buffers, 448
use of, 490
DBBIGSET, 489
DBChange Plus, 458
DBCONTROL
with B-Tree index, 508
DBDELETE
with B-Tree index, 518
DBFIND
for B-Tree index, 501
with B-Tree index, 510
DBG, use of, 490
DBGET
with B-Tree index, 516
DBINFO, 488
mode 402, MPE V versus MPE/iX, 686
with B-Tree index, 517
DBLOAD utility, 385
DBLOCK
multiple calls, 655
DBPUT
with B-Tree index, 518
DBQUIESCE, 492
DBR, 492
DBRECOV utility, 389
ABORT option, 389
PURGE option, 389
record table, 395
RESTART option, 389
STOP-RESTART feature, 368
DBRECOV utility commands
CONTROL, 359, 392
EXIT, 396
FILE, 359, 397
PRINT, 359, 399
RECOVER, 359, 400
ROLLBACK, 359, 402
RUN, 357, 359, 404
DBRESTOR utility, 406
DBS, use of, 490
DBSCHEMA, 488
with B-Tree index, 505
DBSTORE flag, 332, 347, 409
override, 395
DBSTORE utility, 408
TRANSPORT option, 691
DBTABLE option, of DBRECOV, 399
DBU, use of, 490