16.20 - Function - Teradata Tools and Utilities

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

prodname
Teradata Tools and Utilities
vrm_release
16.20
created_date
September 2019
category
Programming Reference
featnum
B035-2417-108K

Function is a four-byte field that is used by an application to specify the operation to be carried out by DBCHCL. Each of the following codes represents a different operation:

Code Operation
1 Connect
2 Disconnect
3 RunStartUp
4 Initiate Request
5 Fetch
6 Rewind
7 Abort
8 End Request
11 Initiate With Protocol-function
14 Command
15 ContinueRequest
In this language... The variable name for Function is...
COBOL DBCAREA-FUNC
PL/I FUNC
C, C++ func
IBM Assembler DBCAFUNC
This routine... Does this for Function...
DBCHINI writes
DBCHCL reads
Function is used by... To...
applications write

An application must set the Function field to the appropriate nonzero value before calling DBCHCL. Use mnemonics for the codes. Mnemonics are provided in the language definition file for the DBCAREA.