Continuing a Teradata SQL Request - 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

When an ElicitData, ElicitFile, or ElicitName response parcel is fetched, Teradata Database requires additional information to complete the request. To provide that information, CLI performs the following steps:

1 Modifies the DBCAREA.

a Set the Function to 15 (ContinueRequest).

b Set the Input CLI Session Id to the Output CLI Request Id returned when the session was established.

c Set the Input CLI Request Id to the Output CLI Request Id returned when the request was initiated.

d Set the Request Pointer field.

e Set the Request Length field.

f Optionally set the following fields:

  • Fetch Buffer Length field
  • Message Area Pointer field
  • Message Area Length field
  • g Optionally set the Change Options option to 'Y', and set the following:

  • C2S Conversion option
  • Locate Mode option
  • Maximum Parcel option
  • 2 Calls DBCHCL to perform the ContinueRequest function.

    3 Checks the return code from DBCHCL.

     

    Return Code.

    Result

    0

    Calls DBCHCL to perform a Fetch function to get the final status of the rewind and the first part of the response. For more information, see “Fetching the Response” on page 47.

    anything else

    Processes the return code and DBCAREA message.

    4 Calls DBCHCL to perform the End Request function. For more information, see “Ending a Request” on page 53.