and - ObjectVision/GeoDMS GitHub Wiki

Logical functions and (&&)

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

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.

• condition1 .. conditionn data items with bool value type

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).

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

LDomain, nr of rows = 4

• or (||)
• not (!)