links : [url=http://www.tf2outpost.com/trade/6070940]tf2outpost.com[/url] [url=http://www.tf2outpost.com/trade/5935213]tf2outpost.com[/url] [url=http://www.tf2outpost.com/trade/5729876]tf2outpost.com[/url].
A function of real numbers is also called a step function if it is piecewise constant function involving a finite number of inputs. There are two types of step functions. Greatest Integer function (floor function) - A function f(x) is said to be a floor function which possesses biggest integer that is less than or equal to the input value x Smallest Integer function (ceiling function) - A function f(x) is said to be a ceiling function which is composed of the lowest integer that is either bigger or equal to the input value x A step function is also known as staircase function, since it looks like a staircase.
63)SQL built-in functions manipulate the results of a SQL SELECT statement. The built-in functions for standard SQL are COUNT, SUM, AVG, MAX, and MIN. The COUNT function counts the number of rows in the result. The SUM function totals the values in a number-oriented field. The AVG function calculates the mean of the values in a number-oriented field. The MAX function determines the highest value, and the MIN function determines the lowest value, in a number-oriented field. 51)One way to specify all of the columns of a table is to use the special character * after the keyword ________.