EN
PostgreSQL - select from view
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In this article, we would like to show you how to select from a view in PostgreSQL.
Quick solution:
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SELECT "column1", "column2", "columnN"2
FROM "view_name"3
WHERE condition;To show how to select from a view, we will use the following view named spain_users:
Note:
At the end of this article you can find database preparation SQL queries.
In this example, we will select email column from the spain_users view.
Query:
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SELECT "email"2
FROM "spain_users";Result:
create_tables.sql file:
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CREATE TABLE "users" (2
"id" SERIAL PRIMARY KEY,3
"name" VARCHAR(100) NOT NULL,4
"email" VARCHAR(100) NOT NULL,5
"country" VARCHAR(15) NOT NULL6
);insert_data.sql file:
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INSERT INTO "users"2
("name", "email", "country")3
VALUES4
('Tom', 'tom@email.com', 'Poland'),5
('Chris','chris@email.com', 'Spain'),6
('Jack','jack@email.com', 'Spain'),7
('Kim','kim@email.com', 'Vietnam'),8
('Marco','marco@email.com', 'Italy'),9
('Kate','kate@email.com', 'Spain'),10
('Nam','nam@email.com', 'Vietnam');create_view.sql file:
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CREATE VIEW "spain_users" AS2
SELECT *3
FROM "users"4
WHERE "country" = 'Spain';