Aggregate Functions In database management an aggregate function is a function where the values of multiple rows are grouped together as input on certain criteria to form a single value of more significant meaning. All aggregate functions are deterministic. In other words, aggregate functions return the same value each time that they are called, when called with a specific set of input values. Question 5 5.1 Name and explain the various aggregate functions with their syntaxes. (10 Marks) 5.2 Consider the table below and answer the following questions. stafftable - Find the sum of all wage values for workers other than JOHNSON. - Determine the number of workers having a pay of less than or equal 10000. - Determine the average income of workers who worked in the Midrand office. - Determine the minimum wage of all Durban workers. - Determine the maximum wage for all staff in the Potchefstroom and Midrand offices. (15 Marks)