What is the default value of Boolean Operator?
a.Null
b.True
c.False
d.none of the above
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Answer / prejib
NULL.
SQL> DECLARE
2 v_boolean BOOLEAN;
3 BEGIN
4 IF v_boolean = TRUE
5 THEN
6 DBMS_OUTPUT.put_line ('Default value is TRUE');
7 ELSIF v_boolean = FALSE
8 THEN
9 DBMS_OUTPUT.put_line ('Default value is FALSE');
10 ELSIF v_boolean IS NULL
11 THEN
12 DBMS_OUTPUT.put_line ('Default value is NULL');
13 END IF;
14 END;
15 /
Default value is NULL
| Is This Answer Correct ? | 42 Yes | 5 No |
Answer / manojbatra071
The default value of Boolean operator in any programming
language is FALSE
| Is This Answer Correct ? | 9 Yes | 8 No |
Answer / jayasree s
A complex Boolean condition by combining simple Boolean
conditions with the logical operators AND, OR, and NOT.
FALSE takes precedence in an AND condition and TRUE takes
precedence in an OR condition. AND returns TRUE only if
both of its operands are TRUE. OR returns FALSE only if
both of its operands are FALSE. NULL AND TRUE always
evaluate to NULL because it is not known if the second
operand evaluates to TRUE or not.
Note: The negation of NULL (NOT NULL) results in a null
value because null values are indeterminate
Answer is FALSE
| Is This Answer Correct ? | 8 Yes | 9 No |
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