46. Actors and customers whose last name starts with 'A'

easy

Instruction
  • Write a query to return unique names (first_name, last_name) of our customers and actors whose last name starts with letter 'A'.

Table 1: actor


  col_name   | col_type
-------------+--------------------------
 actor_id    | integer
 first_name  | text
 last_name   | text

Table 2: customer


  col_name   | col_type
-------------+--------------------------
 customer_id | integer
 store_id    | smallint
 first_name  | text
 last_name   | text
 email       | text
 address_id  | smallint
 activebool  | boolean
 create_date | date
 active      | integer

Sample results


 first_name | last_name
------------+-----------
 KENT       | ARSENAULT
 JOSE       | ANDREW

Solution postgres

SELECT first_name, last_name
FROM customer
WHERE last_name LIKE 'A%'
UNION
SELECT first_name, last_name
FROM actor
WHERE last_name LIKE 'A%';
    

Explanation

This query is selecting the first name and last name columns from two different tables, "customer" and "actor". It uses the "WHERE" clause to filter the results and only show rows where the last name starts with the letter "A".

The "UNION" operator is used to combine the results of both selects into a single result set, eliminating any duplicates in the process.

Overall, this query is retrieving the first and last names of all customers and actors whose last name starts with the letter "A".

Last Submission postgres

Expected results



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