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

188 SQL_FUNCTIONS= LIBNAME Option 4 Chapter 10Variable Required* Optional**CONVERT_ARGSSENGINEINDEX* An error results when a value is missing.** For new and existing functions.Read-Only**XXValid ValuesMust be set to 0for a newly addedfunction.Must remainunchanged forexistingfunctions. Set to0 for a newlyadded function.ExamplesYou can use EXTERNAL_APPEND= to include one or more existing functions to thein-memory function list and EXTERNAL_REPLACE= to exclude them. In this examplethe DATEPART function in a SAS data set of Oracle functions by appending thefunction to an existing list of SAS functions:proc sql;create table work.append as select * from work.allfuncs where sasfuncname=’DATEPART’;quit;libname mydblib oracle sql_functions="EXTERNAL_APPEND=work.append"sql_functions_copy=saslog;In this next example, the equivalent Oracle functions in a SAS data set replace allSAS functions that contain the letter I:proc sql;create table work.replace as select * from work.allfuncs where sasfuncname like ’%I%’;quit;libname mydblib oracle sql_functions="EXTERNAL_REPLACE=work.replace"sql_functions_copy=saslog;This example shows how to add a new function:data work.newfunc;SASFUNCNAME = "sasname";SASFUNCNAMELEN = 7;DBMSFUNCNAME = "DBMSUDFName";DBMSFUNCNAMELEN = 11;FUNCTION_CATEGORY = "CONSTANT";FUNC_USAGE_CONTEXT = "WHERE_ORDERBY";FUNCTION_RETURNTYP = "NUMERIC";FUNCTION_NUM_ARGS = 0;CONVERT_ARGS = 0;ENGINEINDEX = 0;