PL/SQL Question I need to build pl/sql block that prompts a user for the number of visitors each day for the past 5 days and then displays the average number of visitors per day. For example; day 1: 19 day 2: 21 day 3: 23 ... The avg number of visitors is: ___
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
PL/SQL Question
I need to build pl/sql block that prompts a user for the number of visitors each day for the past 5 days and then displays the average number of visitors per day.
For example;
day 1: 19
day 2: 21
day 3: 23
...
The avg number of visitors is: ___
like this.
Step by step
Solved in 3 steps with 1 images
Thank you for your explanation, however, I forgot to mention that I can't use LOOP to accept new &. Instead, I should use
DECLARE
TYPE my_array_type IS TABLE OF number INDEX BY PLS_INTEGER;
v_n_array my_array_type;
Then in the 'begin and end block' accept new value for each array members
begin
v_n_array(1):= &n1
v_n_array(2):=&n2
....
Collect all v_n_array members (5 different numbers) and then do calculations like finding the average.
v_avg := …………
Then Display as
DBMS_OUTPUT.PUT_LINE (‘The average number of visitors is: ‘ || v_avg )
END;
by Bartleby Expert
