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

362 READ_LOCK_TYPE= Data Set Option 4 Chapter 11Syntax Descriptiondbms-specific-valueSee the DBMS-specific reference section for your interface for this value.DetailsThe degree of isolation defines the degree to which these items are affected:3 rows that are read and updated by the current application are available to otherconcurrently executing applications3 update activity of other concurrently executing application processes can affect thecurrent applicationDB2 under UNIX and PC Hosts, Netezza, ODBC: This option is ignored if you do notset READ_LOCK_TYPE=ROW.See the locking topic for your interface in the DBMS-specific reference section fordetails.See AlsoTo assign this option to a group of relational DBMS tables or views, see the“READ_ISOLATION_LEVEL= LIBNAME Option” on page 175.“READ_LOCK_TYPE= Data Set Option” on page 362READ_LOCK_TYPE= Data Set OptionSpecifies how data in a DBMS table is locked during a read transaction.Default value: DBMS-specificValid in: DATA and PROC steps (when accessing DBMS data using SAS/ACCESSsoftware)DBMS support: DB2 under UNIX and PC Hosts, DB2 under z/OS, Microsoft SQL Server,ODBC, OLE DB, Oracle, Sybase, Sybase IQ, TeradataSyntaxREAD_LOCK_TYPE=ROW | PAGE | TABLE | NOLOCK | VIEWSyntax DescriptionNot all values are valid for every interface. See the details in this section.ROW [valid only for DB2 under UNIX and PC Hosts, Microsoft SQL Server, ODBC,Oracle]locks a row if any of its columns are accessed.PAGE [valid only for Sybase]locks a page of data, which is a DBMS-specific number of bytes.