This table (and its data) is used in the examples bellow:
CREATE TABLE table_delete ( id1 NUMBER(2,0) , desc1 VARCHAR(2) );
INSERT INTO table_delete (id1, desc1) VALUES (1, 'A'); INSERT INTO table_delete (id1, desc1) VALUES (2, 'B'); INSERT INTO table_delete (id1, desc1) VALUES (3, 'C');

DELETE table_delete WHERE id1 = 1;
Sélectionner les données de la table : SELECT id1, desc1 FROM table_delete;
Résultat de la requête : id1 desc1 ----- ----- 2 B 3 C

DELETE ( SELECT 1 FROM table_delete WHERE id1 IN (1,2) );
Sélectionner les données de la table : SELECT id1, desc1 FROM table_delete;
Résultat de la requête :id1 desc1 ----- ----- 3 C