Oracle auto increment primary key

Oracle auto_increment

-- Use a sequence:
CREATE SEQUENCE id_seq START WITH 1;
INSERT INTO my_table (ID, VALUE) VALUES (id_seq.NEXTVAL, 'My value');

Oracle auto increment primary key

CREATE TABLE auto_increment_column_table (
 auto_increment_column_id NUMBER GENERATED ALWAYS AS IDENTITY,
 auto_increment_column_description VARCHAR2(50)
);

Source: arungudelli.com

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