17.10 - DBFCRQ - Call-Level Interface Version 2

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

Call-Level Interface Version 2
Release Number
October 2021
Last Update
Content Type
Programming Reference
Publication ID
English (United States)
Last Update

DBFCRQ is the Continue LOB request function of DBCHCL.

DBFCRQ is used in conjunction with DBFIRQ, to send LOB data.

How It Works

After issuing a Multipart LOB request using DBFIRQ, the application initiates a DBFCRQ to send Multipart LOB data to the server.

DBFCRQ performs the following functions:
  • If the session is active, awaits completion of the active request
  • Reads the continuation code given by the application in DBCAREA field 'continuation_code'
  • If other than 'F', 'I', 'L' or 'C' is used, CLI returns error
  • If 'C' is mentioned, then CLI will send abort parcel to the server
  • If Parcel request mode is used, CLI will build Multipart data parcel and End Multipart data parcel to the server
  • The data sent to the server is supplied by the application through DBCAREA field 'req_ptr'
  • If buffer mode is used, CLI will send the request buffer build by the application to the server