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
15.00
Language
English (United States)
Last Update
2018-09-25
dita:id
B035-2418
lifecycle
previous
Product Category
Teradata Tools and Utilities

DBCHCL

DBCHCL prepares either a RunStartup, IVRunStartup or FMRunStartup parcel in the message body of the Request Buffer depending on the value of the Record Mode options flag, and then prepares a Resp or KeepResp parcel depending on the value of the Keep Mode flag, and a Data or Indic data parcel if the Teradata SQL request contained a Teradata SQL statement with a USING modifier in the Request Buffer.

In the MTDP Control Block, DBCHCL provides a pointer to the Request Buffer and the length including the LAN header structure, of the data in the buffer, provides the length of and a pointer to the Response Buffer, sets the selfrecov option (if needed), and sets the function code to MTDPSTA. DBCHCL then calls MTDP.