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

430 CONNECT Statement 4 Chapter 13DEFER=NO | YESdetermines when the connection to the DBMS occurs.Default value: NOIf DEFER=YES, the connection to the DBMS occurs when the firstPass-Through statement is executed. If DEFER=NO, the connection to theDBMS occurs when the CONNECT statement occurs.VALIDVARNAME=V6indicates that only SAS 6 variable names are considered valid. Specify thisconnection argument if you want the SQL pass-through facility to operate inSAS 6 compatibility mode.By default, DBMS column names are changed to valid SAS names,following these rules:3 Up to 32 mixed-case alphanumeric characters are allowed.3 Names must begin with an alphabetic character or an underscore.3 Characters that are not permitted are changed to underscores.3 Any column name that is not unique when it is normalized is madeunique by appending a counter (0,1,2,...) to the name.When VALIDVARNAME=V6 is specified, the SAS/ACCESS engine for theDBMS truncates column names to eight characters, as it does in SAS 6. Ifrequired, numbers are appended to the ends of the truncated names to makethem unique. Setting this option overrides the value of the SAS system optionVALIDVARNAME= during (and only during) the Pass-Through connection.This example shows how the SQL pass-through facility usesVALIDVARNAME=V6 as a connection argument. Using this option causesthe output to show the DBMS column "Amount Budgeted$" as AMOUNT_Band "Amount Spent$" as AMOUNT_S.proc sql;connect to oracle (user=gloria password=teachervalidvarname=v6)create view budget2000 asselect amount_b, amount_sfrom connection to oracle(select "Amount Budgeted$", "Amount Spent$"from annual_budget);quit;proc contents data=budget2000;run;For this example, if you omit VALIDVARNAME=V6 as a connectionargument, you must add it in an OPTIONS= statement in order for PROCCONTENTS to work:options validvarname=v6;proc contents data=budget2000;run;Thus, using it as a connection argument saves you coding later.Note: In addition to the arguments listed here, several other LIBNAMEoptions are available for use with the CONNECT statement. See the section aboutthe SQL pass-through facility in the documentation for your SAS/ACCESSinterface to determine which LIBNAME options are available in the SQLpass-through facility for your DBMS. When used with the SQL pass-through