16.20 - Extension-pointer - 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

Extension-pointer is a four-byte field that specifies the address of the first or only DBCAREA extension.

In this language... The variable name for Extension-pointer is...
COBOL DBCAREA-EXT-PTR
PL/I EXT_PTR
C, C++ extension_pointer
IBM Assembler DBCAXP
This routine... Takes the action for Extension-pointer...
DBCHINI writes
DBCHCL reads (IRQ; IWPF)
Extension-pointer is used by... To...
applications write

Each extension applies only to particular functions, so care must be taken to address the proper extension before invoking a function and clearing the Extension-pointer when that function is complete.

For more information about DBCAREA extensions, see DBCAREA Extensions.