forall function
Applies to: 
Databricks SQL Databricks Runtime
Tests whether func holds for all elements in the array.
Syntax
forall(expr, func)
Arguments
expr: An ARRAY expression.func: A lambda function returning a BOOLEAN.
Returns
A BOOLEAN.
The lambda function uses one parameter passing an element of the array.
Examples
SQL
> SELECT forall(array(1, 2, 3), x -> x % 2 == 0);
false
> SELECT forall(array(2, 4, 8), x -> x % 2 == 0);
true
> SELECT forall(array(1, NULL, 3), x -> x % 2 == 0);
false
> SELECT forall(array(2, NULL, 8), x -> x % 2 == 0);
NULL