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

The LIBNAME Statement for Relational Databases 4 UPDATE_ISOLATION_LEVEL= LIBNAME Option 195DetailsTRACEFILE= is used only when TRACE=YES. If you specify a filename without apath, the SAS trace file is stored with your data files. If you specify a directory, enclosethe fully qualified filename in single quotation marks.If you do not specify the TRACEFILE= option, output is directed to a default file.This option is not supported on UNIX platforms.See Also“TRACE= LIBNAME Option” on page 194UPDATE_ISOLATION_LEVEL= LIBNAME OptionDefines the degree of isolation of the current application process from other concurrently runningapplication processes.Default value: DBMS-specificValid in: SAS/ACCESS LIBNAME statementDBMS support: DB2 under UNIX and PC Hosts, DB2 under z/OS, Microsoft SQL Server,ODBC, OLE DB, Oracle, Sybase, Sybase IQ, TeradataSyntaxUPDATE_ISOLATION_LEVEL=DBMS-specific-valueSyntax DescriptionThe values for this option are DBMS-specific. See the DBMS-specific referencesection for details.DetailsHere is what the degree of isolation defines:3 the degree to which rows that are read and updated by the current application areavailable to other concurrently executing applications3 the degree to which update activity of other concurrently executing applicationprocesses can affect the current application.This option is ignored in the interfaces to DB2 under UNIX and PC Hosts and ODBCif you do not set UPDATE_LOCK_TYPE=ROW. See the locking topic for your interfacein the DBMS-specific reference section for details.See AlsoTo apply this option to an individual data set, see the“UPDATE_ISOLATION_LEVEL= Data Set Option” on page 396.“UPDATE_LOCK_TYPE= LIBNAME Option” on page 196