The LIBNAME Statement for Relational Databases

CAST_OVERHEAD_MAXPERCENT= LIBNAME Option

Specifies the overhead limit for data conversions to perform in Teradata instead of SAS.

Default value:	20%
Valid in:	SAS/ACCESS LIBNAME statement
DBMS support:	Teradata

Syntax
Syntax Description
Details
Examples
See Also

Syntax

CAST_OVERHEAD_MAXPERCENT=<n>

Syntax Description

<n>: Any positive numeric value. The engine default is 20.

Details

Teradata INTEGER, BYTEINT, SMALLINT, and DATE columns require conversion when read in to SAS. Either Teradata or SAS can perform conversions. When Teradata performs the conversion, the row size that is transmitted to SAS using the Teradata CAST operator can increase. CAST_OVERHEAD_MAXPERCENT= limits the allowable increase, also called conversion overhead.

Examples

This example demonstrates the use of CAST_OVERHEAD_MAXPERCENT= to increase the allowable overhead to 40%:

proc print data=mydblib.emp (cast_overhead_maxpercent=40);
where empno<1000;
run;