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PostgreSQL - Drop table
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In this article, we would like to show you how to DROP TABLE in PostgreSQL.
Quick solution:
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DROP TABLE "table_name";To show how the DROP TABLE statement works, we will use the following table:
Note:
At the end of this article you can find database preparation SQL queries.
In this example, we will delete the users table.
Query:
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DROP TABLE "users";Output:
If you try to drop a table that already exists with DROP TABLE query you will get an error:
If you try to DROP TABLE IF EXISTS you will get a warning instead:
Note:
For more information go to this article: PostgreSQL - Drop table if exists.
create_tables.sql file:
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CREATE TABLE "users" (2
"id" SERIAL,3
"name" VARCHAR(50) NOT NULL,4
"surname" VARCHAR(50) NOT NULL,5
"department_id" INTEGER,6
"salary" DECIMAL(15,2) NOT NULL,7
PRIMARY KEY ("id")8
);insert_data.sql file:
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INSERT INTO "users"2
( "name", "surname", "department_id", "salary")3
VALUES4
('John', 'Stewart', 1, '3512.00'),5
('Chris', 'Brown', 2, '1344.00'),6
('Kate', 'Lewis', 3, '6574.00'),7
('Ailisa', 'Gomez', NULL, '6500.00'),8
('Gwendolyn', 'James', 2, '4200.00'),9
('Simon', 'Collins', 4, '3320.00'),10
('Taylor', 'Martin', 2, '1500.00'),11
('Andrew', 'Thompson', NULL, '2100.00');