About this book

This book describes how to configure and use a DirectConnect™ access service, including datatype conversion, request processing, data transfer, and stored procedures.

Audience

This book is written for:

Application Programmers, who develop organization-specific programs using the major features of DirectConnect.
System Administrators, who install and test DirectConnect. When DirectConnect is running, System Administrators provide ongoing administration support, disaster recovery, and troubleshooting support.
System Programmers, who install and test DirectConnect. System Programmers who provide product administration, troubleshooting, and disaster recovery.

How to use this book

This book covers the following topics:

Chapter	Topic
Chapter 1, “Introducing DirectConnect”	Introduces the product and describes the DirectConnect components.
Chapter 2, “Configuring the Access Service Library for DirectConnect”	Tells how to configure access service library and access service properties.
Chapter 3, “Configuring Access Services to Work with Related Products”	Provides instructions for setting up the Component Integration Services functionality in Adaptive Server® Enterprise (ASE/CIS) and Replication Server to use with a DirectConnect access service.
Chapter 4, “Querying and Setting Operating Values”	Explains how to use global variables and set statements to query and set operating values for your client connections.
Chapter 5, “Managing Transactions”	Describes the transaction management processing flow and explains how to configure properties to manage the process.
Chapter 6, “Issuing SQL Statements”	Describes SQL transformation modes and standard transformations for SQL commands.
Chapter 7, “Issuing RPC Events”	Describes how to create, configure, and execute remote procedure calls (RPCs).
Chapter 8, “Understanding the Transfer Process”	Describes several concepts of the transfer process.
Chapter 9, “Using Bulk Copy Transfer and Express Transfer”	Describes how to use bulk copy transfer, including syntax statements and error handling.
Chapter 10, “Using Destination-Template Transfer”	Explains how to use destination-template transfer, including syntax statements and error handling.
Chapter 11, “Accessing Catalog Information with CSPs”	Provides a description and reference for supported catalog stored procedures (CSPs).
Chapter 12, “Retrieving Information with System Procedures”	Provides a description and reference for supported system procedures.
Appendix A, “Configuration Quick Reference”	Contains a quick reference table, in alphabetical order, for the configuration properties.
Appendix B, “Converting Datatypes”	Describes datatype conversions between ODBC and Open Server™.
Appendix C, “Using Stored Procedures”	Describes SQL stored procedures and DB2 stored procedures, including rules for using them.
Appendix D, “Using Sybase Mode Commands”	Describes SQL commands that the DirectConnect for ODBC access service recognizes in sybase mode.

Other sources of information

Use the Sybase Getting Started CD, the Sybase Technical Library CD, and the Technical Library Product Manuals Web site to learn more about your product:

The Getting Started CD contains release bulletins and installation guides in PDF format, and may also contain other documents or updated information not included on the Technical Library CD. It is included with your software. To read or print documents on the Getting Started CD, you need Adobe Acrobat Reader (downloadable at no charge from the Adobe Web site, using a link provided on the CD).
The Technical Library CD contains product manuals and is included with your software. The DynaText reader (included on the Technical Library CD) allows you to access technical information about your product in an easy-to-use format.

Refer to the Technical Library Installation Guide in your documentation package for instructions on installing and starting the Technical Library.
The Technical Library Product Manuals Web site is an HTML version of the Technical Library CD that you can access using a standard Web browser. In addition to product manuals, you will find links to EBFs/Maintenance, Technical Documents, Case Management, Solved Cases, newsgroups, and the Sybase Developer Network.

To access the Technical Library Product Manuals Web site, go to Product Manuals.

Sybase certifications on the Web

Technical documentation at the Sybase Web site is updated frequently.

Finding the latest information on product certifications

Point your Web browser to Technical Documents.
Select Products from the navigation bar on the left.
Select a product name from the product list and click Go.
Select the Certification Report filter, specify a time frame, and click Go.
Click a Certification Report title to display the report.

Creating a personalized view of the Sybase Web site (including support pages)

Set up a MySybase profile. MySybase is a free service that allows you to create a personalized view of Sybase Web pages.

Point your Web browser to Technical Documents.
Click MySybase and create a MySybase profile.

Sybase EBFs and software maintenance

Finding the latest information on EBFs and software maintenance

Point your Web browser to the Sybase Support Page.
Select EBFs/Maintenance. If prompted, enter your MySybase user name and password.
Select a product.
Specify a time frame and click Go. A list of EBF/Maintenance releases is displayed.

Padlock icons indicate that you do not have download authorization for certain EBF/Maintenance releases because you are not registered as a Technical Support Contact. If you have not registered, but have valid information provided by your Sybase representative or through your support contract, click Edit Roles to add the “Technical Support Contact” role to your MySybase profile.
Click the Info icon to display the EBF/Maintenance report, or click the product description to download the software.

Style conventions

This book uses the following style conventions:

The names of files and directories are shown as:

econnect\ServerName\CFG
The names of programs, utilities, procedures, and commands are shown as:

the set statement
The names of properties are shown as:

Allocate
The names of options are shown as:

connect
Code examples and text on screen are shown as:

** Prepare the statement.
In a sample command line display, commands you should enter are shown as:
```
Allocate=connect
```
In a sample command line display, variables (which are words you should replace with the appropriate value for your system) are shown as:
```
ClientIdleTimeout=integer
```

Syntax conventions

Syntax statements that display options for a command look like this:

sp_columns table_name [, table_owner]
 [, table_qualifier] [, column_name]

The following table explains the syntax conventions used in this book.

**Table 1: Syntax conventions**
Symbol	Convention
( )	Include parentheses as part of the command.
{ }	Braces indicate that you must choose at least one of the enclosed options. Do not type the braces when you type the option.
[ ]	Brackets indicate that you can choose one or more of the enclosed options, or none. Do not type the brackets when you type the options.
\|	The vertical bar indicates that you can select only one of the options shown. Do not type the bar in your command.
,	The comma indicates that you can choose one or more of the options shown. Separate each choice by using a comma as part of the command.

If you need help

Each Sybase installation that has purchased a support contract has one or more designated people who are authorized to contact Sybase Technical Support. If you cannot resolve a problem using the manuals or online help, please have the designated person contact Sybase Technical Support or the Sybase subsidiary in your area.

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