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PostgreSQL - LIMIT clause

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Created by:
Brian-Tompset
401

In this article, we would like to show you how to use LIMIT clause in PostgreSQL.

Quick solution:

SELECT "column1", "column2", ...
FROM "table_name"
WHERE condition
LIMIT number
OFFSET number;

Practical example

To show how the LIMIT clause works, we will use the following table:

PostgreSQL - example data used with LIMIT clause
PostgreSQL - example data used with LIMIT clause

Note:

At the end of this article you can find database preparation SQL queries.

Example 1

In this example, we will display all information about the first two users.

Query:

SELECT * 
FROM "users" 
LIMIT 2;

Output:

PostgreSQL - LIMIT clause
Results - HeidiSQL

Example 2

In this example, we will also display all information about users limited to 2, but this time we set an OFFSET to skip the first user.

Query:

SELECT * 
FROM "users" 
LIMIT 2
OFFSET 1;

Output:

PostgreSQL - LIMIT clause with OFFSET result
Result - HeidiSQL

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');

PostgreSQL

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