CREATE TABLE man (
id number,
name VARCHAR2(10),
sex VARCHAR2(10)
);
CREATE TABLE woman (
id number,
name VARCHAR2(10),
sex VARCHAR2(10)
);
INSERT INTO man VALUES(1,'爱国',1);
INSERT INTO man VALUES(2,'援朝',1);
INSERT INTO man VALUES(3,'跃进',1);
INSERT INTO man VALUES(4,'超美',1);
INSERT INTO man VALUES(5,'卫国',1);
INSERT INTO woman VALUES(1,'倩倩'，0);
INSERT INTO woman VALUES(1,'娇娇'，0);
INSERT INTO woman VALUES(2,'丽丽', 0);
INSERT INTO woman VALUES(1,'青青', 0);
INSERT INTO woman VALUES(7,'莲莲', 0);
select * from man;
select * from woman for update
--左外连接
select m.*,w.* from man m left join woman w on m.id=w.id;
select * from man m, woman w where m.id=w.id(+);
--右外连接
select m.*,w.* from man m right join woman w on m.id=w.id
select m.*,w.* from man m,woman w where m.id(+)=w.id;