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

470 Chapter9
Using a Remote Database
Access Through a Local Application Program
remote account. It follows the same rules as username. An at-sign (@) can
be used to indicate rusername as with lusername. (Required parameter.)
rupasw
is the password assigned to username. (Optional parameter.)
racctname
is the name of the logon account on the remote HP 3000. It follows the
same rules as lacctname. An at-sign (@) can be used to indicate racctname
is the same as lacctname. (Required parameter.)
rapasw
is the password assigned to racctname. (Optional parameter.)
rgroupname
is the name of the logon group on the remote HP 3000. It follows the same
rules as lgroupname. An at-sign (@) can be used to indicate rgroupname is
the same as lgroupname. (Optional parameter.)
rgpasw
is the password assigned to rgroupname. (Optional parameter.)
Discussion
The following syntax rules apply:
• No spaces are allowed around any periods that could exist in the second file reference in
record 1 (for example, dbname2.group).
• Passwords are not allowed with the local user, account, and group names. They are not
necessary because the local user passes the security password checks when logging onto
the local system.
NOTE
Remote logon parameters must define a valid logon known to the remote
machine. For example, if a particular user name requires a password on the
remote machine, the password parameter is required in the database-access
file and must be supplied in the HELLO command.
After you have created the file with an editor, you must KEEP it UNNumbered. The file
name must follow the same rules as a database name. It must be an alphanumeric string
from 1 to 6 characters; the first character must be alphabetic.
Records 3 through n define a table that tells TurboIMAGE/XL which user, account, and
group names on the local computer can access which user, account, and group names on
the remote computer. You can specify remote user identification for more than one local
user by creating a record for each local "user.account,group" using the record 3 format
shown earlier. An at-sign (@) can be substituted for any user, account, or group name in the
record. If an at-sign is substituted for lusername, lacctname, or lgroupname, the name is
replaced with the corresponding name specified at logon time.
TurboIMAGE/XL searches for a match between the local user, account and group names in
the user table and the names used to log on to the local session. When a match has been
found, TurboIMAGE/XL performs a REMOTE HELLO using the corresponding rusername,
racctname, rgroupname, and passwords, if present. If an at-sign is found, it is replaced
with the corresponding name to the left of =HELLO. For example, if the record contains
USERA.ACCTA,GROUPA=HELLO@.ACCTB,@, TurboIMAGE/XL replaces the first at-sign with
USERA and the second with GROUPA. If an at-sign is not found, no substitutions are
made. In either case, the information to the right of =HELLO is used as the remote logon
identification.