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SQL>
SQL> CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL,
2 ENAME VARCHAR2(10),
3 JOB VARCHAR2(9),
4 MGR NUMBER(4),
5 HIREDATE DATE,
6 SAL NUMBER(7, 2),
7 COMM NUMBER(7, 2),
8 DEPTNO NUMBER(2));
Table created.
SQL>
SQL> INSERT INTO EMP VALUES (7369, 'SMITH', 'CLERK', 7902, TO_DATE('17-DEC-1980', 'DD-MON-YYYY'), 800, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7499, 'ALLEN', 'SALESMAN', 7698, TO_DATE('20-FEB-1981', 'DD-MON-YYYY'), 1600, 300, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7521, 'WARD', 'SALESMAN', 7698, TO_DATE('22-FEB-1981', 'DD-MON-YYYY'), 1250, 500, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7566, 'JONES', 'MANAGER', 7839, TO_DATE('2-APR-1981', 'DD-MON-YYYY'), 2975, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7654, 'MARTIN', 'SALESMAN', 7698,TO_DATE('28-SEP-1981', 'DD-MON-YYYY'), 1250, 1400, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7698, 'BLAKE', 'MANAGER', 7839,TO_DATE('1-MAY-1981', 'DD-MON-YYYY'), 2850, NULL, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7782, 'CLARK', 'MANAGER', 7839,TO_DATE('9-JUN-1981', 'DD-MON-YYYY'), 2450, NULL, 10);
1 row created.
SQL> INSERT INTO EMP VALUES (7788, 'SCOTT', 'ANALYST', 7566,TO_DATE('09-DEC-1982', 'DD-MON-YYYY'), 3000, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7839, 'KING', 'PRESIDENT', NULL,TO_DATE('17-NOV-1981', 'DD-MON-YYYY'), 5000, NULL, 10);
1 row created.
SQL> INSERT INTO EMP VALUES (7844, 'TURNER', 'SALESMAN', 7698,TO_DATE('8-SEP-1981', 'DD-MON-YYYY'), 1500, 0, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7876, 'ADAMS', 'CLERK', 7788,TO_DATE('12-JAN-1983', 'DD-MON-YYYY'), 1100, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7900, 'JAMES', 'CLERK', 7698,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 950, NULL, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7902, 'FORD', 'ANALYST', 7566,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 3000, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7934, 'MILLER', 'CLERK', 7782,TO_DATE('23-JAN-1982', 'DD-MON-YYYY'), 1300, NULL, 10);
1 row created.
SQL>
SQL> CREATE TABLE DEPT (DEPTNO NUMBER(2),DNAME VARCHAR2(14),LOC VARCHAR2(13) );
Table created.
SQL>
SQL> INSERT INTO DEPT VALUES (10, 'ACCOUNTING', 'NEW YORK');
1 row created.
SQL> INSERT INTO DEPT VALUES (20, 'RESEARCH', 'DALLAS');
1 row created.
SQL> INSERT INTO DEPT VALUES (30, 'SALES', 'CHICAGO');
1 row created.
SQL> INSERT INTO DEPT VALUES (40, 'OPERATIONS', 'BOSTON');
1 row created.
SQL>
SQL>
SQL> begin
2 dbms_stats.set_table_stats
3 ( user, 'EMP', numrows => 10000000, numblks => 1000000 );
4 dbms_stats.set_table_stats
5 ( user, 'DEPT', numrows => 1000000, numblks => 100000 );
6 end;
7 /
PL/SQL procedure successfully completed.
SQL>
SQL> select * from emp, dept where emp.deptno = dept.deptno;
EMPNO Employee Name JOB MGR HIREDATE Salary COMM DEPTNO DEPTNO DNAME LOC
---------- ------------- --------- ---------- --------- ---------- ---------- ---------- ---------- -------------- -------------
7369 SMITH CLERK 7902 17-DEC-80 $800.00 20 20 RESEARCH DALLAS
7499 ALLEN SALESMAN 7698 20-FEB-81 $1,600.00 300 30 30 SALES CHICAGO
7521 WARD SALESMAN 7698 22-FEB-81 $1,250.00 500 30 30 SALES CHICAGO
7566 JONES MANAGER 7839 02-APR-81 $2,975.00 20 20 RESEARCH DALLAS
7654 MARTIN SALESMAN 7698 28-SEP-81 $1,250.00 1400 30 30 SALES CHICAGO
7698 BLAKE MANAGER 7839 01-MAY-81 $2,850.00 30 30 SALES CHICAGO
7782 CLARK MANAGER 7839 09-JUN-81 $2,450.00 10 10 ACCOUNTING NEW YORK
EMPNO Employee Name JOB MGR HIREDATE Salary COMM DEPTNO DEPTNO DNAME LOC
---------- ------------- --------- ---------- --------- ---------- ---------- ---------- ---------- -------------- -------------
7788 SCOTT ANALYST 7566 09-DEC-82 $3,000.00 20 20 RESEARCH DALLAS
7839 KING PRESIDENT 17-NOV-81 $5,000.00 10 10 ACCOUNTING NEW YORK
7844 TURNER SALESMAN 7698 08-SEP-81 $1,500.00 0 30 30 SALES CHICAGO
7876 ADAMS CLERK 7788 12-JAN-83 $1,100.00 20 20 RESEARCH DALLAS
7900 JAMES CLERK 7698 03-DEC-81 $950.00 30 30 SALES CHICAGO
7902 FORD ANALYST 7566 03-DEC-81 $3,000.00 20 20 RESEARCH DALLAS
7934 MILLER CLERK 7782 23-JAN-82 $1,300.00 10 10 ACCOUNTING NEW YORK
14 rows selected.
SQL>
SQL> alter session set OPTIMIZER_MODE = RULE;
Session altered.
SQL>
SQL> select * from emp, dept where emp.deptno = dept.deptno;
EMPNO Employee Name JOB MGR HIREDATE Salary COMM DEPTNO DEPTNO DNAME LOC
---------- ------------- --------- ---------- --------- ---------- ---------- ---------- ---------- -------------- -------------
7782 CLARK MANAGER 7839 09-JUN-81 $2,450.00 10 10 ACCOUNTING NEW YORK
7839 KING PRESIDENT 17-NOV-81 $5,000.00 10 10 ACCOUNTING NEW YORK
7934 MILLER CLERK 7782 23-JAN-82 $1,300.00 10 10 ACCOUNTING NEW YORK
7566 JONES MANAGER 7839 02-APR-81 $2,975.00 20 20 RESEARCH DALLAS
7902 FORD ANALYST 7566 03-DEC-81 $3,000.00 20 20 RESEARCH DALLAS
7876 ADAMS CLERK 7788 12-JAN-83 $1,100.00 20 20 RESEARCH DALLAS
7369 SMITH CLERK 7902 17-DEC-80 $800.00 20 20 RESEARCH DALLAS
EMPNO Employee Name JOB MGR HIREDATE Salary COMM DEPTNO DEPTNO DNAME LOC
---------- ------------- --------- ---------- --------- ---------- ---------- ---------- ---------- -------------- -------------
7788 SCOTT ANALYST 7566 09-DEC-82 $3,000.00 20 20 RESEARCH DALLAS
7521 WARD SALESMAN 7698 22-FEB-81 $1,250.00 500 30 30 SALES CHICAGO
7844 TURNER SALESMAN 7698 08-SEP-81 $1,500.00 0 30 30 SALES CHICAGO
7499 ALLEN SALESMAN 7698 20-FEB-81 $1,600.00 300 30 30 SALES CHICAGO
7900 JAMES CLERK 7698 03-DEC-81 $950.00 30 30 SALES CHICAGO
7698 BLAKE MANAGER 7839 01-MAY-81 $2,850.00 30 30 SALES CHICAGO
7654 MARTIN SALESMAN 7698 28-SEP-81 $1,250.00 1400 30 30 SALES CHICAGO
14 rows selected.
SQL>
SQL> drop table emp cascade constraints;
Table dropped.
SQL>
SQL> drop table dept cascade constraints;
Table dropped.
SQL>
SQL>
SQL>
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