17.10 - DBCHCL Functions - Call-Level Interface Version 2

Teradata® Call-Level Interface Version 2 Reference for Workstation-Attached Systems

Call-Level Interface Version 2
Release Number
October 2021
Last Update
Content Type
Programming Reference
Publication ID
English (United States)
Last Update

Function Abbreviations

Abbreviations Function
DBFCON Call to DBCHCL for the Connect function
DBFCRQ Call to DBCHCL for sending LOB data in deferred Mode
DBFRSUP Call to DBCHCL for the Run Startup function
DBFIRQ Call to DBCHCL for the Initiate Request function
DBFABT Call to DBCHCL for the Abort function
DBFFET Call to DBCHCL for the Fetch function
DBFREW Call to DBCHCL for the Rewind function
DBFERQ Call to DBCHCL for the End Request function
DBFDSC Call to DBCHCL for the Disconnect function

For an overview of the use of these functions, see Use of CLIv2 Routines: Tabular Summary.

For each function, there is a list of the required and optional input arguments and output arguments, and a general description of how DBCHCL processes the function.

The interpretation of some of the arguments can depend on the setting of the DBCAREA set options. For instance, input/output string pointers can be variable strings. For output strings, DBCHCL will provide an address and length if Locate Mode is in effect; otherwise DBCHCL expects that the application has set the address of the area to which DBCHCL is to move the string. If DBCHCL detects an error while processing, various fields will be set to help the user interpret and handle the error.