In this post, I am sharing a simple example of DELETE INNER JOIN statement in PostgreSQL.

Many of the database developers are exploring the PostgreSQL so DELETE a table from another table which is a very common requirement so I am sharing a simple example.

PostgreSQL: Update the Table data using Subquery

Create two sample tables with data:

CREATE TABLE ABC (ID INT, Name CHARACTER VARYING);
CREATE TABLE XYZ (ID INT, Name CHARACTER VARYING);

INSERT INTO ABC VALUES (1,'aaa'),(2,'bbb'),(3,'ccc');
INSERT INTO XYZ VALUES (1,'zzz'),(2,'yyy'),(3,'xxx'),(4,'www');

DELETE INNER JOIN:

DELETE FROM XYZ X
USING ABC AS A
WHERE A.ID = X.ID

Check the result:

SELECT *FROM XYZ;

id   |  name
----------------------
4    |  www