Joan Casteel Oracle Brewbeans: Create a block containing a variable that can hold a date value (for a billing date), a variable that can hold a character string (for a last name), and a variable that can hold a numeric value (for a credit balance). For variable names, follow the naming conventions introduced in this chapter. Initialize the date variable to the value October 21, 2012 and the numeric variable to 1,000. In the executable (BEGIN) section of the block, assign the character variables value as Brown, and include statements to display the value of each variable.