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PostgreSQL - BETWEEN clause
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points
In this article, we would like to show you how to use BETWEEN
clause in PostgreSQL.
Quick solution:
SELECT * FROM "table_name" WHERE "column_name" BETWEEN value_1 AND value_2;
Practical example
To show how BETWEEN
clause works, we will use the following table:
Note:
At the end of this article you can find database preparation SQL queries.
Example
In this example, we will display users with id
column values between 2
and 4
.
Query:
SELECT * FROM "users" WHERE "id" BETWEEN 2 AND 4;
Result:
Note:
BETWEEN clause is used very often for dates.
Database preparation
create_tables.sql
file:
CREATE TABLE "users" (
"id" SERIAL PRIMARY KEY,
"name" VARCHAR(100) NOT NULL,
"role" VARCHAR(15) NOT NULL
);
insert_data.sql
file:
INSERT INTO "users"
("name", "role")
VALUES
('John', 'admin'),
('Chris', 'moderator'),
('Kate', 'user'),
('Denis', 'moderator');