Answer:
If no values in WHERE clauses match the result of the selector in the CASE clause, the sequence of statements in the ELSE clause executes. ... When the IF THEN statement has no ELSE clause and the condition is not met, PL/SQL does nothing instead raising an error.
Explanation:
Answer:
aaaa
Explanation:
We have a function nPrint which return type is void, it means it returns nothing.
we declare the two parameters, one parameter is string type and the second parameter is an integer type.
Then, it has a while loop that executes the statement again and again until the condition not FALSE.
Let dry run the code:
First, call the function nPrint("a", 4) bypassing the value in the argument.
then, the value receives by the parameters, the message contains "a" and n contain 4. After that, while loop checks the condition 4 > 0, which is TRUE and the program starts executing the statement.
The program prints the message on the screen "a" and then decreases the value of n by 1. So, the value of n becomes 3.
The above process repeats for the value of n = 3, 2, 1
and print the message "aaaa".
then, the condition becomes false and the program terminates the loop.
Therefore, the answer is aaaa
Answer: D
Explanation:
Constraints are associations between multiple variables which set boundaries for the values these variables can take at the same time. They put limit on values that variables can accommodate.
Answer:
True.
Explanation:
Analytical processing uses multi-levelaggregates, instead of record level access.
