DBCHCL - Call-Level Interface Version 2

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

Product
Call-Level Interface Version 2
Release Number
15.10
Language
English (United States)
Last Update
2018-10-07
dita:id
B035-2418
lifecycle
previous
Product Category
Teradata Tools and Utilities

DBCHCL

DBCHCL obtains and initializes the CLI2SCB. If the application has specified that options values in the DBCAREA are to be used, the options are copied from the DBCAREA to the System Control Block (SCB); otherwise, options are copied from the System Parameter Block (SPB). A Request Control Block (RCB) is then allocated and initialized for the logon sequence. The application may provide token identifiers for its own use when starting a request or a session; the value of this DBCAREA field will be copied to the logon RCB and will be returned whenever the logon request is referenced.

DBCHCL obtains and initializes request and response buffers. DBCHCL prepares a Logon parcel and a Run (or Connect) parcel in the Request Buffer. The request is sent to MTDP.