Answer:
be clearer. your question doesn't seem to be presented well
Answer:
Combination of one or more columns used to identify particular rows in a relation is a key
Answer:
3
Explanation:
The function floor() is used to give the integer which is smaller than or equal to the provided decimal value.
for example:
let a=5.8
floor(a);
the function provides the value 5 (smaller than or equal to 5.8).
In the given code:
variable num assigns the number 3.14.
then, floor(3.14) gives the value 3 (smaller than or equal to 3.14).
then, the echo print the value on the screen.
Therefore, the correct answer is 3.
