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

454 Chapter8
Using the Database Utilities
>>SHOW
by account, you must have SM capability.
maint word
is the current maintenance word for the database. The database creator or
the user with SM capability can omit the maintenance word.
ALL displays all the information provided with MAINT, BUFFSPECS,
LANGUAGE, LOCKS, USERS, LOGID, SUBSYSTEMS, FLAGS, and the
last-stored date. Displays number of detail data sets using dynamic
capacity expansion and if dynamic capacity expansion is used for master
data sets. Also, if the database is attached to any ALLBASE/SQL database
environments (DBEnvironments) via IMAGESQL, the DBEnvironment
names are displayed (refer to the IMAGE/SQL Administration Guide for
information).
BUFFSPECS displays the current buffer specifications which can be either the
TurboIMAGE/V default setting or the values specified with the DBUTIL
>>SET command for those databases that will be migrated to MPE V; the
TurboIMAGE/XL default setting is not displayed. Refer to the discussion
of BUFFSPECS in the earlier section on the >>SET command and also in
"Moving from MPE/iX to MPE V" in appendix H.
CAPACITY displays, for all data sets, capacity information including dynamic capacity
fields. Information includes: data set name, type, number of entries,
entries as a percentage of the maximum capacity for the data set,
maximum capacity, current capacity, initial capacity, incremental number
of entries and whether or not dynamic capacity expansion is used.
CIUPDATE displays the setting for the critical item update option. Valid settings are
DISALLOWED, ALLOWED, and ON.
DEVICE displays the TurboIMAGE/XL root and data sets and where files reside
(device class name or logical number) for a database.
FLAGS displays the state (enabled or disabled) of the logging, roll-back, ILR,
recovery, restart, subsystem access, AUTODEFER, access, dumping,
HWMPUT, PREFETCH, MUSTRECOVER, and third-party indexing (TPI)
options. If MUSTRECOVER is enabled, the flags option also displays a
message if the database needs recovery. In addition, it displays the last
database store date, and information on whether the database has been
modified since the last-stored date (DBSTORE flag).
INDEX INDEXES INDICES displays the B-Tree indices for the database.
LANGUAGE displays state of the native language declaration for the database.
LOCKS displays the status of locks currently obtained (or requested).
LOGID displays the current MPE/iX log identifier for the database.
LOGINFO displays information about all types of logging available with
TurboIMAGE/XL.
MAINT displays the maintenance word, if any.
PASSWORDS displays the access class numbers from 1 through 63 together with the
passwords assigned to them. (You must be the database creator.)