16.20 - Request-length - 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

Request-length is a four byte field that is the length (in bytes) of the request string.

In this language... The variable name for Request-length is...
COBOL DBCAREA-REQ-LEN
PL/I REQ_LEN
C, C++ req_len
IBM Assembler DBRIRQL
This routine... Does this for Request-length...
DBCHINI writes
DBCHCL reads (IRQ; CMD; IWPF; CRQ)
Request-length is used by... To...
applications write.
When Request-mode is set to... Then...
B CLIv2 does not validate the length further
P If the Maximum-parcel is set to O, the maximum value is approximately 32763.

If the Maximum-parcel is set to H, the maximum value is approximately 65531.

The actual maximum may vary slightly with the version of the Teradata Database being used, but may be obtained using the DBCHQE CLIv2-limits query.

When sending segments of a stored procedure (refer to Stored Procedures for details), the actual maximum may vary slightly with the version of the Teradata Database being used; the value may be obtained using the DBCHQE CLIv2-limits query (or the deprecated Maximum-segment-size query).

When using the Continue-request function, the total size of a large object may be obtained using the DBCHQE SQL-limits query.