is the field ( or combination of fields) that uniquely identifies each record in a table. Can be numbers, letters or a combination of both.

____________________ controls are used to select and deselect an option.

Fill in the blank(s) with the appropriate word(s).

A(n) ________ is used to query unrelated tables or queries and combine the results into a single dataset. This type of query is different from querying related tables as it combines two SQL SELECT statements

A) crosstab query B) SQL query C) subquery D) union query

Which of the following is a valid header for a procedure that receives an integer followed by a number with a decimal place?

a. Private Sub CalcFee(intBase As Integer, decRate As Decimal) b. Private Sub CalcFee(ByRef intBase As Integer, ByRef decRate As Decimal) c. Private Sub CalcFee(ByVal intBase As Integer, ByVal decRate As Decimal) d. Private Sub CalcFee(ByValue intBase As Integer, ByValue decRate As Decimal)

Many businesses involved in e-commerce combine multiple payment gateways to generate revenues.

Answer the following statement true (T) or false (F)