rem 一半情况下的
SQL> select INFO.SID, INFO.AGE, INFO.NAME, WORK.COMPANY, WORK.ADDRESS
2 from TEST_INFO INFO , TEST_WORK WORK
3 where INFO.SID = WORK.SID;
SID AGE NAME COMPANY ADDRESS
---------- ---------- ------------ --------------- ---------------
1001 28 Jack MS US
1002 33 Micky Oracle CHINA
1003 43 Kent HP US
rem 右连接
SQL> select INFO.SID, INFO.AGE, INFO.NAME, WORK.COMPANY, WORK.ADDRESS
2 from TEST_INFO INFO right outer join TEST_WORK WORK
3 on INFO.SID = WORK.SID;
SID AGE NAME COMPANY ADDRESS
---------- ---------- ------------ --------------- ---------------
1001 28 Jack MS US
1002 33 Micky Oracle CHINA
1003 43 Kent HP US
CANON JAP
SONY JAP
Lenovo CHINA
Apple US
rem 左连接
SQL> select INFO.SID, INFO.AGE, INFO.NAME, WORK.COMPANY, WORK.ADDRESS
2 from TEST_INFO INFO left outer join TEST_WORK WORK
3 on INFO.SID = WORK.SID;
SID AGE NAME COMPANY ADDRESS
---------- ---------- ------------ --------------- ---------------
1001 28 Jack MS US
1002 33 Micky Oracle CHINA
1003 43 Kent HP US
1004 32 Hence
rem 全连接
SQL> select INFO.SID, INFO.AGE, INFO.NAME, WORK.COMPANY, WORK.ADDRESS
2 from TEST_INFO INFO full outer join TEST_WORK WORK
3 on INFO.SID = WORK.SID;
SID AGE NAME COMPANY ADDRESS
---------- ---------- ------------ --------------- ---------------
1001 28 Jack MS US
1002 33 Micky Oracle CHINA
1003 43 Kent HP US
1004 32 Hence
CANON JAP
SONY JAP
Lenovo CHINA
Apple US
已选择8行。
SQL> spool off
