create table oracle
CREATE TABLE ot.persons(
person_id NUMBER GENERATED BY DEFAULT AS IDENTITY,
first_name VARCHAR2(50) NOT NULL,
last_name VARCHAR2(50) NOT NULL,
PRIMARY KEY(person_id)
);create table oracle
CREATE TABLE ot.persons(
person_id NUMBER GENERATED BY DEFAULT AS IDENTITY,
first_name VARCHAR2(50) NOT NULL,
last_name VARCHAR2(50) NOT NULL,
PRIMARY KEY(person_id)
);alter table oracle
ALTER TABLE tablename MODIFY columnname varchar2(100)Copyright © 2021 Codeinu
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