DB2 Connect User's Guide
About This Book
DB2 Connect Overview
The Database Concept
Setting up DB2 Connect
DB2 Connect and SQL
Administration Utilities
Functions Delivered in Previous Releases
DB2 Connect Version 5 Release 2
DB2 Connect Version 5.0
DDCS Version 2 Release 4
DDCS Version 2 Release 3
Distributed Relational Database Architecture Concepts
DRDA and DB2 Connect
Remote Unit of Work
Multisite Updates (Two-Phase Commit)
DRDA and Data Access
Updating Database Directories
Collecting Information
Node Directory
DCS Directory
System Database Directory
Defining Multiple Entries for the Same Database
Updating the Directories
Binding Applications and Utilities
The BIND Command
Rebinding
DB2 Connect Administration Utilities
Command Line Processor
Using Import and Export Utilities
Moving Data from a Workstation to a Host or AS/400 Database Server
Moving Data from a host or AS/400 database server to a Workstation
Mixed Single-Byte and Double-Byte Data
Replacement for SQLQMF Utility
Trace Utility (ddcstrc)
Trace Syntax
Trace Parameters
Trace Output
Analyzing the Trace Output File
Database System Monitor for DB2 Connect
Monitoring Connections for Remote Clients
Turning on Monitor Switches for DB2 Connect
Listing the Status of Monitor Switches
Listing DCS Application Status
LIST DCS APPLICATIONS
LIST DCS APPLICATIONS SHOW DETAIL
LIST DCS APPLICATIONS EXTENDED
Using the DB2 Control Center to List Extended DCS Applications Information
Using the Windows NT Performance Monitor
Security
Authentication
Security Types
Security Types for APPC Connections
Security Types for TCP/IP Connections
Discussion of Security Types
Additional Hints and Tips About Security
Extended Security Codes
TCP/IP Security Already Verified
Desktop ODBC and Java Application Security
Password Change Support
Programming in a DB2 Connect Environment
Programming in a Distributed Environment
Using Data Definition Language (DDL)
Using Data Manipulation Language (DML)
Using Data Control Language (DCL)
Connecting and Disconnecting
Precompiling
Defining a Sort Order
Managing Referential Integrity
Locking
Differences in SQLCODEs and SQLSTATEs
Using System Catalogs
Numeric Conversion Overflows on Retrieval Assignments
Isolation Levels
Stored Procedures
NOT ATOMIC Compound SQL
Multisite Update with DB2 Connect
Host or AS/400 Server SQL Statements Supported by DB2 Connect
Host or AS/400 Server SQL Statements Rejected by DB2 Connect
Implementing Chargeback Accounting
Useful Publications
SQLCODE Mapping
Turning Off SQLCODE Mapping
Tailoring the SQLCODE Mapping
Problem Determination
Other Information Sources
Using the Troubleshooting Guide
Using the World Wide Web
APPC, CPI-C, and SNA Sense Codes Documentation
Gathering Relevant Information
Initial Connection is Not Successful
Problems Encountered after an Initial Connection
Diagnostic Tools
Most Common DB2 Connect Problems
SQL0965 or SQL0969
SQL1338 During CONNECT
SQL1403N During CONNECT
SQL5043N
SQL30020
SQL30060
SQL30061
SQL30073 with Return Code 119C During CONNECT
SQL30081N with Return Code 1
SQL30081N with Return Code 2
SQL30081N with Return Code 9
SQL30081N with Return code 10
SQL30081N with Return Code 20
SQL30081N with Return code 27
SQL30081N with Return Code 79
SQL30081N with Protocol Specific Error Code 10032
DB2 Connect Performance
Other Information Sources
Other Publications
Using the World Wide Web
Additional Hints and Tips for SNA Users
Performance Concepts and Tools
Data Flows
Bottlenecks
Benchmarking
Performance Tools
Application Design
Compound SQL and Stored Procedures
Grouping Requests
Predicate Logic
Data Blocking
Static and Dynamic SQL
Other SQL Considerations
DB2 Connect Tuning
RQRIOBLK
DIR_CACHE
Other DB2 Connect Parameters
Database Tuning
Tuning DB2 for OS/390
Data Conversion
Data Types for Character Data
Network Tuning
Network Hardware
Contention for System Resources
Performance Troubleshooting
Appendix A. Sending Accounting Information to a DB2 for OS/390 Server
Setting the Accounting String
Appendix B. Changing Your MVS Password
Configuring the Host for Password Expiration Management
Configuring the DB2 Connect Workstation for Password Expiration Management
Step 1. Define Symbolic Destination Name
Step 2. Record Symbolic Destination Name in the DCS Directory
Appendix C. Directory Customization Worksheet
Appendix D. National Language Support Considerations
Conversion of Character Data
Appendix E. Using DCE Directory Services
Creating a Database Object
Creating a Database Locator Object
Creating a Routing Information Object
Setting Configuration Parameters
Cataloging the Database
Security with DCE Directory Services
Appendix F. Binding Utilities for Back-Level Clients
Appendix G. Tuning CLI/ODBC Application Performance with the CLISCHEMA Keyword
Target Environment
What CLI/ODBC Is
How CLI/ODBC Works
The DB2 CLISCHEMA Initalization Keyword
Usage Notes
db2cli and bldschem Utilities
Suggested Approach
Additional Hints and Tips
db2ocat Catalog Optimizer Tool
Additional Information Sources
Appendix H. Additional SNA Performance Tuning Hints and Tips
General Performance Information for DB2 Connect
Selection and Tuning of the Network Attachment
Other DB2 Connect Performance Information Sources
Multi Path Channel Support for SNA over ESCON
How to Tune DB2 Connect Connections via NCP
Tuning Criteria
Information about OSA-2 Enhancements
Appendix I. Contacting IBM
Appendix J. Notices
Trademarks
Trademarks of Other Companies
Index
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