And

Logical functions and (&&)

syntax

• and(condition1 ,.., conditionn)
• condition1 && condition2

definition

and(condition1 ,.., conditionn) or condition1 && condition2 combines two or more conditions and results in true values if all conditions are true and in false values if any condition is false.

applies to

• condition1 .. conditionn data items with bool value type

conditions

The conditions need to match with regard to their domain unit or be void (literals or parameters can be combined with data itemsof any domain).

example

1. attribute<bool> condA_and_condB (LDomain) := and(condA, condB);
2. attribute<bool> condA_and_condB (LDomain) := condA && condB;

condA	condB	condA_and_condB
False	False	False
False	True	False
True	False	False
True	True	True

LDomain, nr of rows = 4

see also

• or (||)
• not (!)