Answer:
A primary key is a special relational database table column (or combination of columns) designated to uniquely identify each table record. A primary key is used as a unique identifier to quickly parse data within the table. A table cannot have more than one primary key.
Primary Key.
Candidate Key.
Alternate Key.
Super Key.
Composite Key.
Foreign Key.
Unique Key.
In the relational model of databases, a primary key is a specific choice of a minimal set of attributes that uniquely specify a tuple in a relation. Informally, a primary key is "which attributes identify a record," and in simple cases constitute a single attribute: a unique ID.
Explanation:
Answer:
A subroutine is a block of statements that carries out one or more tasks. ... they share all variables with the rest of the main program. ... Once you have defined a function in your program, you may use it in any appropriate expression, such as: ... Thus, functions can- not change the values of the arguments passed to them.
Explanation:
26 + 26 = 57 but when it takes away 2 it = 55 if you really wanna think about it that much
a = int(input("Class A tickets sold: "))
b = int(input("Class B tickets sold: "))
c = int(input("Class C tickets sold: "))
print("Total income generated: $"+str((a*20)+(b*15)+(c*10)))
I hope this helps!
Answer:
Mazda RX-7. The Mazda RX-7 is a front-engine, rear-wheel-drive rotary engine powered sports car manufactured and marketed by Mazda from 1978–2002 across three generations—all noted for using a compact, lightweight Wankel rotary engine.
