asterisk

Question

what is asterisk

Answer 1

*. The star. Shift 8 on a keyboard. In programming it denotes multiplication. ** denotes to the power of. 2**3 is 2 to the 3rd power or 8. 2*3 = 6.

Answer 2

C++: reference/pointer variable, dereference, multiplication, part of multiline comment
Python: ** is the exponential operator, symbol can mean 'all'

Answer 3

in SQL mean "all"