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Copy pathALL JOINS3.txt
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ALL JOINS3.txt
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SQL> select ename,dname
2 from emp,dept
3 where emp.deptno=dept.deptno AND
4 ename like 'S%';
ENAME DNAME
---------- --------------
SMITH RESEARCH
SCOTT RESEARCH
SQL> ED
Wrote file afiedt.buf
1 select ename,dname
2 from emp inner join dept
3 on emp.deptno=dept.deptno
4* where ename like 'S%'
SQL> //
ENAME DNAME
---------- --------------
SMITH RESEARCH
SCOTT RESEARCH
SQL> ed
Wrote file afiedt.buf
1 select ename,dname
2 from emp natural join dept
3 where emp.deptno=dept.deptno and
4* ename like 'S%'
SQL> /
where emp.deptno=dept.deptno and
*
ERROR at line 3:
ORA-25155: column used in NATURAL join cannot have qualifier
SQL> ed
Wrote file afiedt.buf
1 select ename,dname
2 from emp natural join dept
3* where ename like 'S%'
SQL> /
ENAME DNAME
---------- --------------
SMITH RESEARCH
SCOTT RESEARCH
SQL> SELECT ENAME
2 FROM EMP
3 WHERE COMM IN(SELECT COMM
4 FROM EMP
5 WHERE COMM >=0);
ENAME
----------
ALLEN
WARD
MARTIN
TURNER
SQL> SELECT * FROM EMP;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7369 SMITH CLERK 7902 17-DEC-80 800 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7566 JONES MANAGER 7839 02-APR-81 2975 20
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30
7782 CLARK MANAGER 7839 09-JUN-81 2450 10
7788 SCOTT ANALYST 7566 19-APR-87 3000 20
7839 KING PRESIDENT 17-NOV-81 5000 10
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7876 ADAMS CLERK 7788 23-MAY-87 1100 20
7900 JAMES CLERK 7698 03-DEC-81 950 30
7902 FORD ANALYST 7566 03-DEC-81 3000 20
7934 MILLER CLERK 7782 23-JAN-82 1300 10
14 rows selected.
SQL> SELECT ENAME
2 FROM EMP
3 WHERE COMM=ALL(SELECT COMM
4 FROM EMP
5 WHERE COMM>=0);
no rows selected
SQL> SELECT ENAME
2 FROM EMP
3 /
ENAME
----------
SMITH
ALLEN
WARD
JONES
MARTIN
BLAKE
CLARK
SCOTT
KING
TURNER
ADAMS
JAMES
FORD
MILLER
14 rows selected.
SQL> SELECT E.ENAME
2 FROM EMP E,EMP C
3 WHERE E.COMM=C.COMM;
ENAME
----------
ALLEN
WARD
MARTIN
TURNER
SQL> ED
Wrote file afiedt.buf
1 SELECT E.ENAME
2 FROM EMP E,EMP C
3* WHERE E.COMM=C.COMM AND COMM>=0
SQL> /
WHERE E.COMM=C.COMM AND COMM>=0
*
ERROR at line 3:
ORA-00918: column ambiguously defined
SQL> ED
Wrote file afiedt.buf
1 SELECT E.ENAME
2 FROM EMP E,EMP C
3* WHERE E.COMM=C.COMM AND C.COMM>=0
SQL> /
ENAME
----------
ALLEN
WARD
MARTIN
TURNER
SQL> ED
Wrote file afiedt.buf
1 SELECT E.ENAME
2 FROM EMP E,EMP C
3* WHERE E.COMM=C.COMM AND E.COMM>=0
SQL> /
ENAME
----------
ALLEN
WARD
MARTIN
TURNER
SQL> ED
Wrote file afiedt.buf
1 SELECT E.ENAME
2 FROM EMP E,EMP C
3* WHERE E.COMM=C.COMM AND E.COMM>=0 AND E.EMPNO=C.EMPNO
SQL> /
ENAME
----------
ALLEN
WARD
MARTIN
TURNER
SQL> ED
Wrote file afiedt.buf
1 SELECT E.ENAME
2 FROM EMP E,EMP C
3* WHERE E.COMM=C.COMM AND E.COMM>=0 AND E.EMPNO!=C.EMPNO
SQL> /
no rows selected
SQL> ED
Wrote file afiedt.buf
1 SELECT E.ENAME
2 FROM EMP E,EMP C
3* WHERE E.COMM=C.COMM AND E.EMPNO!=C.EMPNO
SQL> /
no rows selected
SQL> ED
Wrote file afiedt.buf
1 SELECT E.ENAME
2 FROM EMP E JOIN EMP C
3* WHERE E.COMM=C.COMM AND E.EMPNO!=C.EMPNO
SQL> /
WHERE E.COMM=C.COMM AND E.EMPNO!=C.EMPNO
*
ERROR at line 3:
ORA-00905: missing keyword
SQL> ED
Wrote file afiedt.buf
1 SELECT E.ENAME
2 FROM EMP E JOIN EMP C
3* ON E.COMM=C.COMM AND E.EMPNO!=C.EMPNO
SQL> /
no rows selected
SQL> SELECT DNAME
2 FROM EMP,DEPT
3 WHERE EMP.DEPTNO=DEPT.DEPTNO AND
4 ENAME IS NOT NULL;
DNAME
--------------
RESEARCH
SALES
SALES
RESEARCH
SALES
SALES
ACCOUNTING
RESEARCH
ACCOUNTING
SALES
RESEARCH
SALES
RESEARCH
ACCOUNTING
14 rows selected.
SQL> ED
Wrote file afiedt.buf
1 SELECT DNAME
2 FROM EMP,DEPT
3 WHERE EMP.DEPTNO=DEPT.DEPTNO AND
4* ENAME IS NULL
SQL> /
no rows selected
SQL> ED
Wrote file afiedt.buf
1 SELECT DNAME
2 FROM EMP,DEPT
3 WHERE EMP.DEPTNO(+)=DEPT.DEPTNO AND
4* ENAME IS NULL
SQL> /
DNAME
--------------
OPERATIONS
SQL> ES
SP2-0042: unknown command "ES" - rest of line ignored.
SQL> ED
Wrote file afiedt.buf
1 SELECT DNAME
2 FROM EMP RIGHT OUTER JOIN DEPT
3 ON EMP.DEPTN=DEPT.DEPTNO
4* WHERE ENAME IS NULL
SQL> /
ON EMP.DEPTN=DEPT.DEPTNO
*
ERROR at line 3:
ORA-00904: "EMP"."DEPTN": invalid identifier
SQL> ED
Wrote file afiedt.buf
1 SELECT DNAME
2 FROM EMP RIGHT OUTER JOIN DEPT
3 ON EMP.DEPTNO=DEPT.DEPTNO
4* WHERE ENAME IS NULL
SQL> /
DNAME
--------------
OPERATIONS
SQL> SPOOL OFF