Reading DB2 Execution Plans

http://etutorials.org/SQL/Sql+tuning/Chapter+3.+Viewing+and+Interpreting+Execution+Plans/3.2+Reading+DB2+Execution+Plans/

http://publib.boulder.ibm.com/infocenter/dzichelp/v2r2/index.jsp?topic=%2Fcom.ibm.db2.doc.sqlref%2Frexpl.htm