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Open Client Client-Library/C Reference Manual |
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| Chapter 1 Introducing Client-Library |
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| What an application developer needs to know |
New Client-Library programmers will need to learn some or all of following programming interfaces:
Client-Library, a collection of routines for use in writing client applications. Client-Library routines begin with "ct_", as in ct_init. These are documented in Chapter 3, "Routines".
CS-Library, a collection of utility routines that are useful to both client and server applications. All Client-Library applications will include at least one call to CS-Library, because Client-Library routines use a structure that is allocated in CS-Library. CS-Library routines begin with "cs_", as in cs_ctx_alloc. These routines are documented in the CS-Library chapters of the Open Client and Open Server Common Libraries Reference Manual.
Bulk-Library, a collection of routines that allow Client-Library and Server-Library applications to use the Adaptive Server's bulk copy interface for high-speed data transfer. Client-Library programmers do not need to know Bulk-Library unless they want their program to transfer data using the bulk copy interface. Bulk-Library routines begin with "blk_", as in blk_alloc. These routines are documented in the Bulk-Library chapters of the Open Client and Open Server Common Libraries Reference Manual.
Client-Library programmers must also know something about the server to which their client program connects.
For connections to Adaptive Server, a client application developer should know the Transact-SQL language, Sybase's implementation of Structured Query Language that allows access to Adaptive Server databases. Client application programmers must also be familiar with the tables and stored procedures that are in the Adaptive Server databases used by the application.
For connections to Open Server gateways or other Open Server applications, the client application developer should know the feature set supported by the server. For example, not all Open Servers support language commands. Some only provide a collection of available registered procedures for RPC commands. When the server does support language commands, the client programmer must know the supported query language.
For a quick tour of Client-Library functionality, including a simple example program, see Chapter 1, "Getting Started With Client-Library," in the Open Client Client-Library/C Programmer's Guide.
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