Eaton, Roger G.2016-07-212016-07-21http://hdl.handle.net/2097/32823Citation: Eaton, R. (1991). SQL/DS: New Horizons. DATA BASE Management: Data Base Information for the New Era, 1(7), 42-43One of the virtues of SQL/ OS is an optimizer to perform data access path selection. Because SQL/DS's optimizer determines data access paths, SQL/DS provides the EXPLAIN command to retrieve information about optimizer decisions. You may consider it a window to the instruction will examine (cardinality) and an estimate of the number of times each instruction will executed.Copyright 1991 by Technical Enterprises, Inc. If you are the copyright holder of this work and would like to have this item removed, please contact Kansas State University Libraries. CADS@ksu.edu. (785) 532-7444.SQL/DSRelational DatabasesDatabase StructureText