... will be reading about in this chapter are often referred to as SQL s OLAP (Online Analytical Processing) functions.e basic SQL set, or aggregate, functions (summarized in Table 7-1) compute ... SQL DBMS support-ing COUNT, SUM, AVG, MIN, and MAX. In addition, many DBMSs provide additional aggregate functions for measures such as standard deviation and variance. Consult the DBMSs docu-mentation ... unless you resort to the group making trick shown earlier. e more recent versions of the SQL stan-dard (from SQL: 2003 onward), however, include a new way to compute aggregate functions yet display...