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524 lines (394 loc) · 58.5 KB
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SQL> SET AUTOTRACE ON EXPLAIN;
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.
Execution Plan
----------------------------------------------------------
Plan hash value: 3956160932
--------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 14 | 518 | 3 (0)| 00:00:01 |
| 1 | TABLE ACCESS FULL| EMP | 14 | 518 | 3 (0)| 00:00:01 |
--------------------------------------------------------------------------
SQL> CREATE INDEX DEP ON EMP(DEPTNO);
Index created.
SQL> DELETE INDEX DEP;
DELETE INDEX DEP
*
ERROR at line 1:
ORA-00903: invalid table name
SQL> DROP INDEX DEP;
Index dropped.
SQL> SET AUTOTRACE OFF EXPLAIN;
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 MOD(154,10)
2 FROM DUAL;
MOD(154,10)
-----------
4
SQL> SELECT MOD(122,7) AS MODVAL FROM DUAL;
MODVAL
----------
3
SQL> SELECT MOD(145.89,10)
2 FROM DUAL;
MOD(145.89,10)
--------------
5.89
SQL> SELECT MOD(100.05,2.6)
2 FROM DUAL;
MOD(100.05,2.6)
---------------
1.25
SQL> SELECT MOD(-145,10)
2 FROM DUAL;
MOD(-145,10)
------------
-5
SQL> SELECT MOD(-146,-2)
2 FROM DUAL;
MOD(-146,-2)
------------
0
SQL> SELECT MOD(-146,-5)
2 FROM DUAL;
MOD(-146,-5)
------------
-1
SQL> SELECT MOD(SAL,3)
2 FROM EMP;
MOD(SAL,3)
----------
2
1
2
2
2
0
2
0
2
0
2
2
0
1
14 rows selected.
SQL> SELECT MOD(ENAME,2)
2 FROM EMP;
SELECT MOD(ENAME,2)
*
ERROR at line 1:
ORA-01722: invalid number
SQL> SELECT MOD(HIREDATE,7);
SELECT MOD(HIREDATE,7)
*
ERROR at line 1:
ORA-00923: FROM keyword not found where expected
SQL> SELECT MOD(HIREDATE,7)
2 FROM EMP;
SELECT MOD(HIREDATE,7)
*
ERROR at line 1:
ORA-00932: inconsistent datatypes: expected NUMBER got DATE
SQL> SELECT MOD(SAL,DEPTNO)
2 FROM EMP;
MOD(SAL,DEPTNO)
---------------
0
10
20
15
20
0
0
0
0
0
0
20
0
0
14 rows selected.
SQL> SELECT EMPNO,MOD(EMPNO,3),SAL,MOD(SAL,5)
2 FROM EMP;
EMPNO MOD(EMPNO,3) SAL MOD(SAL,5)
---------- ------------ ---------- ----------
7369 1 800 0
7499 2 1600 0
7521 0 1250 0
7566 0 2975 0
7654 1 1250 0
7698 0 2850 0
7782 0 2450 0
7788 0 3000 0
7839 0 5000 0
7844 2 1500 0
7876 1 1100 0
7900 1 950 0
7902 0 3000 0
7934 2 1300 0
14 rows selected.
SQL> SELECT SQRT(144) FROM DUAL;
SQRT(144)
----------
12
SQL> SELECT SQRT(-121) FROM DUAL;
SELECT SQRT(-121) FROM DUAL
*
ERROR at line 1:
ORA-01428: argument '-121' is out of range
SQL> SELECT SQRT(SAL) FROM EMP;
SQRT(SAL)
----------
28.2842712
40
35.3553391
54.5435606
35.3553391
53.3853913
49.4974747
54.7722558
70.7106781
38.7298335
33.1662479
30.82207
54.7722558
36.0555128
14 rows selected.
SQL> SELCT SQRT(144.55) FROM DUAL;
SP2-0734: unknown command beginning "SELCT SQRT..." - rest of line ignored.
SQL> SELECT SQRT(144.55)
2 FROM DUAL;
SQRT(144.55)
------------
12.0228948
SQL> SELECT SQRT(SAL),SQRT(EMPNO)
2 FROM EMP;
SQRT(SAL) SQRT(EMPNO)
---------- -----------
28.2842712 85.8428797
40 86.5967667
35.3553391 86.7236992
54.5435606 86.9827569
35.3553391 87.4871419
53.3853913 87.7382471
49.4974747 88.2156449
54.7722558 88.2496459
70.7106781 88.5381274
38.7298335 88.5663593
33.1662479 88.7468309
30.82207 88.8819442
54.7722558 88.8931943
36.0555128 89.0730038
14 rows selected.
SQL> SELECT SQRT(SAL),MOD(EMPNO,3)
2 FROM EMP;
SQRT(SAL) MOD(EMPNO,3)
---------- ------------
28.2842712 1
40 2
35.3553391 0
54.5435606 0
35.3553391 1
53.3853913 0
49.4974747 0
54.7722558 0
70.7106781 0
38.7298335 2
33.1662479 1
30.82207 1
54.7722558 0
36.0555128 2
14 rows selected.
SQL> SELECT SQRT(MOD(12245121,1000))
2 FROM DUAL;
SQRT(MOD(12245121,1000))
------------------------
11
SQL> SELECT SQRT(MOD(12245121,1000)
2 FROM DUAL;
FROM DUAL
*
ERROR at line 2:
ORA-00907: missing right parenthesis
SQL> SELECT POWER(12,2) FROM DUAL;
POWER(12,2)
-----------
144
SQL> SELECT POWER(15,3) FROM DUAL;
POWER(15,3)
-----------
3375
SQL> SELECT POWER(12.4,2) FROM DUAL;
POWER(12.4,2)
-------------
153.76
SQL> SELECT POWER(-12,3) FROM DUAL;
POWER(-12,3)
------------
-1728
SQL> SELECT POWER(12,-3) FROM DUAL;
POWER(12,-3)
------------
.000578704
SQL> SELECT SAL,POWER(SAL,2) FROM EMP;
SAL POWER(SAL,2)
---------- ------------
800 640000
1600 2560000
1250 1562500
2975 8850625
1250 1562500
2850 8122500
2450 6002500
3000 9000000
5000 25000000
1500 2250000
1100 1210000
950 902500
3000 9000000
1300 1690000
14 rows selected.
SQL> SELECT ABS(12) FROM DUAL;
ABS(12)
----------
12
SQL> SELECT ABS(13.879) FROM DUAL;
ABS(13.879)
-----------
13.879
SQL> SELECT ABS(-12.90) FROM DUAL;
ABS(-12.90)
-----------
12.9
SQL> SELECT ABS(-687) FROM DUAL;
ABS(-687)
----------
687
SQL> SELECT FLOOR(4.1) FROM DUAL;
FLOOR(4.1)
----------
4
SQL> SELECT FLOOR(4.768789) FROM DUAL;
FLOOR(4.768789)
---------------
4
SQL> SELECT FLOOR(4.6) FROM DUAL;
FLOOR(4.6)
----------
4
SQL> SELECT FLOOR(5.6) FROM DUAL;
FLOOR(5.6)
----------
5
SQL> SELECT FLOOR(7.8) FROM DUAL;
FLOOR(7.8)
----------
7
SQL> SELECT FLOOR(-4.1)FROM DUAL;
FLOOR(-4.1)
-----------
-5
SQL> SELECT FLOOR(-4.8) FROM DUAL;
FLOOR(-4.8)
-----------
-5
SQL> SELECT FLOOR(-4.999) FROM DUAL;
FLOOR(-4.999)
-------------
-5
SQL> SELECT CEIL(3.1) FROM DUAL;
CEIL(3.1)
----------
4
SQL> SELECT CEIL(3.4) FROM DUAL;
CEIL(3.4)
----------
4
SQL> SELECT CEIL(3.9) FROM DUAL;
CEIL(3.9)
----------
4
SQL> SELECT CEIL(7.8) FROM DUAL;
CEIL(7.8)
----------
8
SQL> SELECT CEIL(12.8) FROM DUAL;
CEIL(12.8)
----------
13
SQL> SELECT CEIL(-2.8) FROM DUAL;
CEIL(-2.8)
----------
-2
SQL> SELECT CEIL(-4.5) FROM DUAL;
CEIL(-4.5)
----------
-4
SQL> SELECT ROUND(3.9) FROM DUAL;
ROUND(3.9)
----------
4
SQL> SELECT ROUND(3.1) FROM DUAL;
ROUND(3.1)
----------
3
SQL> SELECT ROUND(3.4) FROM DUAL;
ROUND(3.4)
----------
3
SQL> SELECT ROUND(3.5) FROM DUAL;
ROUND(3.5)
----------
4
SQL> SELECT ROUND(-3.1) FROM DUAL;
ROUND(-3.1)
-----------
-3
SQL> SELECT ROUND(-5.9) FROM DUAL;
ROUND(-5.9)
-----------
-6
SQL> SELECT ROUND(13.79854,2) FROM DUAL;
ROUND(13.79854,2)
-----------------
13.8
SQL> SELECT ROUND(13.4567,3) FROM DUAL;
ROUND(13.4567,3)
----------------
13.457
SQL> SPOOL OFF;