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

Macro Variables and System Options for Relational Databases 4 SQLGENERATION= System Option 421An engine can appear only once, and a procedure can appear only once for agiven engine.""resets the value to the default that was shipped.DetailsUse this option with such procedures as PROC FREQ to indicate what SQL isgenerated for in-database processing based on the type of subsetting that you need andthe SAS/ACCESS engines that you want to access the source table.You must specify NONE and DBMS, which indicate the primary state.The maximum length of the option value is 4096. Also, parentheses are requiredwhen this option value contains multiple keywords.Not all procedures support SQL generation for in-database processing for everyengine type. If you specify a setting that is not supported, an error message indicatesthe level of SQL generation that is not supported, and the procedure can reset to thedefault so that source table records can be read and processed within SAS. If this is notpossible, the procedure ends and sets SYSERR= as needed.You can specify different SQLGENERATION= values for the DATA= and OUT= datasets by using different LIBNAME statements for each of these data sets.Here is how SAS/ACCESS handles precedence.Table 12.2Precedence of Values for SQLGENERATION= LIBNAME and System OptionsLIBNAMEOptionPROC EXCLUDE onSystem Option?EngineTypeEngine Specified onSystem OptionResultingValueFrom(option)not setNONEyesdatabaseinterfaceNONEDBMSNONEEXCLUDEDBsystemDBMSNONEnoNONELIBNAMEDBMSDBMSnot setNONENONEsystemDBMSDBMSNONEDBMSno SQLgeneratedfor thisdatabasehost ordatabaseversionNONEDBMSNONELIBNAMEnot setBasesystemNONELIBNAMEDBMSExamplesHere is the default that is shipped with the product.options sqlgeneration=’’ ;proc options option=sqlgeneration