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PostgreSQL - select last row
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In this article, we would like to show you how to select the last row from a table in PostgreSQL.
Quick solution:
SELECT * FROM "table_name"
ORDER BY "column_name" DESC
LIMIT 1;
Practical example
To show how to select the last row from a table, we will use the following table:
Note:
At the end of this article you can find database preparation SQL queries.
Example 1 - select all columns
In this example, we will select all the information (columns) about the last user from the users
table.
Query:
SELECT * FROM "users"
ORDER BY "id" DESC
LIMIT 1;
Output:
Example 2 - select specified columns
In this example, we will select id
, name
and country
column information about the last user from the users
table.
Query:
SELECT "id", "name", "country"
FROM "users"
ORDER BY "id" DESC
LIMIT 1;
Output:
Database preparation
create_tables.sql
file:
CREATE TABLE "users" (
"id" SERIAL PRIMARY KEY,
"name" VARCHAR(100) NOT NULL,
"email" VARCHAR(100) NOT NULL,
"country" VARCHAR(15) NOT NULL
);
insert_data.sql
file:
INSERT INTO "users"
("name", "email", "country")
VALUES
('Tom', 'tom@email.com', 'Poland'),
('Chris', 'chris@email.com', 'Spain'),
('Jack', 'jack@email.com', 'Spain'),
('Kim', 'kim@email.com', 'Vietnam'),
('Marco', 'marco@email.com', 'Italy'),
('Kate', 'kate@email.com', 'Spain'),
('Nam', 'nam@email.com', 'Vietnam');