SAS/ACCESS 9.2 for Relational Databases: Reference, Fourth Edition

SAS/ACCESS Interface to Teradata 4 Using the SAS_PUT( ) Function in the Teradata EDW 829A large value, VARCHAR(n), is always returned because one function prototypeaccesses all formats. Use the CAST expression to reduce the width of the returnedcolumn to be a character width that is reasonable for the format that is being used.The return text cannot contain a binary zero value (hexadecimal 00) becausethe SAS_PUT( ) function always returns a VARCHAR(n) data type and a TeradataVARCHAR(n) is defined to be a null-terminated string.The SELECT DISTINCT clause executes inside Teradata, and the processing isdistributed across all available data nodes. Teradata formats the price values with the$DOLLAR8.2 format and processes the SELECT DISTINCT clause using the formattedvalues.Explicit Use of the SAS_PUT( ) FunctionIf you use explicit pass-through (direct connection to Teradata), you can use theSAS_PUT( ) function call in your SQL program.This example shows the same query from “Implicit Use of the SAS_PUT( ) Function”on page 827 and explicitly uses the SAS_PUT( ) function call.proc sql noerrorstop;title1 ’Test SAS_PUT using Explicit Passthru;connect to teradata (user=sas password=XXX database=sas server=sl96208);select * from connection to teradata(select distinct cast(sas_put("PRICE",’DOLLAR8.2’) as char(8)) as"PRICE_C" from mailorderdemo);disconnect from teradata;quit;The following lines are written to the SAS log.proc sql noerrorstop;title1 ’Test SAS_PUT using Explicit Passthru ’;connect to teradata (user=sas password=XXX database=sas server=sl96208);select * from connection to teradata(select distinct cast(sas_put("PRICE",’DOLLAR8.2’) as char(8)) as"PRICE_C" from mailorderdemo);Test SAS_PUT using Explicit Passthru 1013:42 Thursday, September 25, 2008PRICE_C_______$8.00$10.00$12.00$13.59$13.99$14.00$27.98$48.99$54.00disconnect from teradata;quit;