SQL QUERRIESDate:27/08/07

Q:1 Write a query to display name, job, hiredate and employee

number for each employee with employee number appearing

first.

SQL> SELECT empno,ename,job,hiredate 2 FROM emp;

EMPNO ENAME JOB HIREDATE---------- ---------- --------- --------- 7369 SMITH CLERK 17-DEC-80 7499 ALLEN SALESMAN 20-FEB-81 7521 WARD SALESMAN 22-FEB-81 7566 JONES MANAGER 02-APR-81 7654 MARTIN SALESMAN 28-SEP-81 7698 BLAKE MANAGER 01-MAY-81 7782 CLARK MANAGER 09-JUN-81 7788 SCOTT ANALYST 19-APR-87 7839 KING PRESIDENT 17-NOV-81 7844 TURNER SALESMAN 08-SEP-81 7876 ADAMS CLERK 23-MAY-87 7900 JAMES CLERK 03-DEC-81 7902 FORD ANALYST 03-DEC-81 7934 MILLER CLERK 23-JAN-82

14 rows selected.

Q2: Write a query to display unique jobs from the employee table.

SQL> SELECT DISTINCT(job) 2 FROM emp;

JOB---------CLERKSALESMANPRESIDENTMANAGERANALYST

Q3: Write a query to display the name concatenated by job seprated by comma.

SQL> SELECT ename || ‘,’ || job2 FROM emp;

ENAME||','||JOB--------------------SMITH,CLERKALLEN,SALESMANWARD,SALESMANJONES,MANAGERMARTIN,SALESMANBLAKE,MANAGERCLARK,MANAGERSCOTT,ANALYSTKING,PRESIDENTTURNER,SALESMANADAMS,CLERKJAMES,CLERKFORD,ANALYSTMILLER,CLERK

14 rows selected.

Q4: Write a query to display all data from employee table separate each column by a comma and name the column THE_OUTPUT.

SQL> SELECTempno||','||ename||','||job||','||mgr||','|| hiredate||','||comm||','||deptno 2 THE_OUTPUT 3 FROM emp;

THE_OUTPUT--------------------------------------------------------------------------------7369,SMITH,CLERK,7902,17-DEC-80,,207499,ALLEN,SALESMAN,7698,20-FEB-81,300,307521,WARD,SALESMAN,7698,22-FEB-81,500,307566,JONES,MANAGER,7839,02-APR-81,,207654,MARTIN,SALESMAN,7698,28-SEP-81,1400,307698,BLAKE,MANAGER,7839,01-MAY-81,,307782,CLARK,MANAGER,7839,09-JUN-81,,107788,SCOTT,ANALYST,7566,19-APR-87,,207839,KING,PRESIDENT,,17-NOV-81,,107844,TURNER,SALESMAN,7698,08-SEP-81,0,307876,ADAMS,CLERK,7788,23-MAY-87,,207900,JAMES,CLERK,7698,03-DEC-81,,307902,FORD,ANALYST,7566,03-DEC-81,,207934,MILLER,CLERK,7782,23-JAN-82,,10

Q 5: Write a query to display the name and salary of employees earning more than $2850.

SQL> SELECT ename,sal 2 FROM emp 3 WHERE sal>2850;

ENAME SAL---------- ----------JONES 2975SCOTT 3000KING 5000FORD 3000

Q6: Write a query to display the name and department number for employee number 7900.

SQL> SELECT ename,deptno 2 FROM emp 3 WHERE empno = 7900;

ENAME DEPTNO---------- ----------JAMES 30

Q7: Write a query to display the name and the salary for all employees whose salary is not in the range of $1500 and $2850.

SQL> SELECT ename,sal 2 FROM emp 3 WHERE sal NOT BETWEEN 1500 AND 2850;

ENAME SAL---------- ----------SMITH 800WARD 1250JONES 2975MARTIN 1250SCOTT 3000KING 5000ADAMS 1100JAMES 950FORD 3000MILLER 1300

10 rows selected.

Q8: Write a query to display the employee name, job,hiredate of employees hired between Feb 20,1981 and May 1,1981.

SQL> SELECT ename,job,hiredate 2 FROM emp 3 WHERE hiredate BETWEEN '20-feb-81' AND '01-may-81' 4 ORDER BY hiredate

ENAME JOB HIREDATE---------- --------- ---------ALLEN SALESMAN 20-FEB-81WARD SALESMAN 22-FEB-81JONES MANAGER 02-APR-81BLAKE MANAGER 01-MAY-81

Q9: Write a query to display employee name and department number of all employees in the department 10 and 30 in alphabetical order by name

SQL> SELECT ename,deptno 2 FROM emp 3 WHERE deptno IN(10,30) 4 ORDER BY ename;

ENAME DEPTNO---------- ----------ALLEN 30BLAKE 30CLARK 10JAMES 30KING 10MARTIN 30MILLER 10TURNER 30WARD 30

9 rows selected.

Q10: Write a query to display the name and salary of employees who earned more than $1500 and are in the department 10 or 30.

SQL> SELECT ename,sal 2 FROM emp 3 WHERE sal>1500 AND deptno in(10,30);

ENAME SAL---------- ----------ALLEN 1600BLAKE 2850CLARK 2450KING 5000

Q11: Write a query to display the name and hiredate of every employee who was hired in 1981.

SQL> SELECT ename,hiredate 2 FROM emp 3 WHERE hiredate LIKE '%81';

ENAME HIREDATE---------- ---------ALLEN 20-FEB-81WARD 22-FEB-81JONES 02-APR-81MARTIN 28-SEP-81BLAKE 01-MAY-81CLARK 09-JUN-81KING 17-NOV-81TURNER 08-SEP-81JAMES 03-DEC-81FORD 03-DEC-81

10 rows selected.

Q12: Write a query to display the name and job of all employees who do not have a manger.

SQL> SELECT ename ,job 2 FROM emp 3 WHERE mgr IS NULL;

ENAME JOB---------- ---------KING PRESIDENT

Q13: Write a query to display the name,salary and commission for all employees who earn commission. Sort the data in descending order.

SQL> SELECT ename,sal,comm 2 FROM emp 3 WHERE comm IS NOT NULL 4 ORDER BY sal DESC,comm DESC;

ENAME SAL COMM---------- ---------- ----------ALLEN 1600 300TURNER 1500 0MARTIN 1250 1400WARD 1250 500

Q14: Write a query to display the name of all employees where the third letter of their name is A.

SQL> SELECT ename 2 FROM emp 3 WHERE ename LIKE '__A%';

ENAME----------BLAKECLARKADAMS

Q15 : Write a query to display the names of all employees that has 2 R’s or A’s in their name and are in department number 30 or their manger is 7788.

SQL> SELECT ename 2 FROM emp 3 WHERE ename LIKE '%R%R%' OR ename LIKE '%A%A%' AND (deptno=30 OR mgr=7788);

ENAME----------TURNERADAMS

Q16: Write a query to display the name ,job and salary of all employees where job is Clerk or Analyst and their salary are not equal to 1000,3000 or 5000.

SQL> SELECT ename,job,sal 2 FROM emp 3 WHERE job IN('CLERK','ANALYST') AND sal NOT IN(1000,3000,5000);

ENAME JOB SAL---------- --------- ----------SMITH CLERK 800ADAMS CLERK 1100JAMES CLERK 950MILLER CLERK 1300

Q17: Write a query to display the name salary and commission for all employees whose commission amount is greater than their salary increased by 5%.

SQL> SELECT ename,sal,comm 2 FROM emp 3 WHERE comm>(sal+sal*0.05);

ENAME SAL COMM---------- ---------- ----------MARTIN 1250 1400

Q18: Write a query to display the current date.SQL> SELECT sysdate 2 FROM dual;

SYSDATE

---------27-AUG-07

Q19:Write a query to display the employee number, name, salary salary increased by 15% expressed as whole number.

SQL> SELECT empno,ename,sal, ROUND(sal+sal*.15) increased_sal 2 FROM emp;

EMPNO ENAME SAL INCREASED_SAL--------- ---------- ---------- ------------- 7369 SMITH 800 920 7499 ALLEN 1600 1840 7521 WARD 1250 1438 7566 JONES 2975 3421 7654 MARTIN 1250 1438 7698 BLAKE 2850 3278 7782 CLARK 2450 2818 7788 SCOTT 3000 3450 7839 KING 5000 5750 7844 TURNER 1500 1725 7876 ADAMS 1100 1265 7900 JAMES 950 1093 7902 FORD 3000 3450 7934 MILLER 1300 1495

14 rows selected.

Q20: Write a query to display the employee number, name, salary salary increased by 15% expressed as whole number and the increase in salary.

SQL> SELECT empno,ename,sal, ROUND(sal+sal*.15) inc_sal, sal*0.15 increase_in_sal2 FROM emp;

EMPNO ENAME SAL INC_SAL INCREASE_IN_SAL ---------- ---------- ---------- ---------- --------------- 7369 SMITH 800 920 120 7499 ALLEN 1600 1840 240 7521 WARD 1250 1438 187.5 7566 JONES 2975 3421 446.25 7654 MARTIN 1250 1438 187.5 7698 BLAKE 2850 3278 427.5 7782 CLARK 2450 2818 367.5 7788 SCOTT 3000 3450 450 7839 KING 5000 5750 750 7844 TURNER 1500 1725 225 7876 ADAMS 1100 1265 165 7900 JAMES 950 1093 142.5 7902 FORD 3000 3450 450 7934 MILLER 1300 1495 195

14 rows selected.

Q21: Write a query to display the employee name, hiredate and salary review date which is the first Monday after six months of salary.

SQL> SELECT ename,hiredate,next_day(add_months(hiredate,6),'monday')

sal_review 2 FROM emp;

ENAME HIREDATE SAL_REVIE---------- --------- ---------SMITH 17-DEC-80 22-JUN-81ALLEN 20-FEB-81 24-AUG-81WARD 22-FEB-81 24-AUG-81JONES 02-APR-81 05-OCT-81MARTIN 28-SEP-81 29-MAR-82

BLAKE 01-MAY-81 02-NOV-81CLARK 09-JUN-81 14-DEC-81SCOTT 19-APR-87 26-OCT-87KING 17-NOV-81 24-MAY-82TURNER 08-SEP-81 15-MAR-82ADAMS 23-MAY-87 30-NOV-87JAMES 03-DEC-81 07-JUN-82FORD 03-DEC-81 07-JUN-82MILLER 23-JAN-82 26-JUL-82

14 rows selected.

Q22: Write a query to display the employee name and calculate the number of months between today and the date the employee was hired.

SQL> SELECT ename,round(months_between(sysdate,hiredate)) Mnthsbet 2 FROM emp;

ENAME MNTHSBET---------- ----------SMITH 320ALLEN 318WARD 318JONES 317MARTIN 311BLAKE 316CLARK 315SCOTT 244KING 309TURNER 312ADAMS 243JAMES 309FORD 309MILLER 307

14 rows selected.

Q23: Write a query to display the following for each employee :- <ename> earns <salary> monthly but wants <3 times salary> label the column as Dream Salary.

SQL> SELECT ename||' earns '||sal||' monthly but wants '||3*sal Dream_Salary 2 FROM emp;

DREAM_SALARY--------------------------------------------------------------------------------SMITH earns 800 monthly but wants 2400ALLEN earns 1600 monthly but wants 4800WARD earns 1250 monthly but wants 3750JONES earns 2975 monthly but wants 8925MARTIN earns 1250 monthly but wants 3750BLAKE earns 2850 monthly but wants 8550CLARK earns 2450 monthly but wants 7350SCOTT earns 3000 monthly but wants 9000KING earns 5000 monthly but wants 15000TURNER earns 1500 monthly but wants 4500ADAMS earns 1100 monthly but wants 3300JAMES earns 950 monthly but wants 2850FORD earns 3000 monthly but wants 9000MILLER earns 1300 monthly but wants 3900

14 rows selected.

Q24: Write a query to display the name and salary for all employees. Format the salary to be 15 character long, left padded with $ sign.

SQL> SELECT INITCAP(ename) ename,LENGTH(ename) length 2 FROM emp 3 WHERE ename LIKE 'J%' OR ename LIKE 'A%' OR ename LIKE 'M%';

ENAME LENGTH---------- ----------Allen 5Jones 5Martin 6Adams 5James 5Miller 6

6 rows selected.

Q25: Write a query to display the employees name with the first letter capitalized and all other letters lower case and length of their name for all employees whose name start with J,A and M.

SQL> SELECT INITCAP(ename) ename,LENGTH(ename) length 2 FROM emp 3 WHERE ename LIKE 'J%' OR ename LIKE 'A%' OR ename LIKE 'M%';

ENAME LENGTH---------- ----------Allen 5Jones 5Martin 6Adams 5James 5Miller 6

6 rows selected.

Q26: Write a query to display the name, hiredate and day of the week on which the employee started.

SQL> SELECT ename,hiredate, TO_CHAR(hiredate,'DAY') startday 2 FROM emp;

ENAME HIREDATE STARTDAY---------- --------- ---------SMITH 17-DEC-80 WEDNESDAYALLEN 20-FEB-81 FRIDAYWARD 22-FEB-81 SUNDAYJONES 02-APR-81 THURSDAYMARTIN 28-SEP-81 MONDAYBLAKE 01-MAY-81 FRIDAYCLARK 09-JUN-81 TUESDAYSCOTT 19-APR-87 SUNDAYKING 17-NOV-81 TUESDAYTURNER 08-SEP-81 TUESDAYADAMS 23-MAY-87 SATURDAYJAMES 03-DEC-81 THURSDAYFORD 03-DEC-81 THURSDAYMILLER 23-JAN-82 SATURDAY

Q27: Write a query to display the employee name and commission amount . If the employee doesnot earn commission put ‘No Commission’.

SQL>SELECT ename,DECODE(comm,0,'No Commission',NULL,'No Commission',comm) "COMM" 2 FROM emp;

ENAME COMM---------- ------------------------SMITH No Commission

ALLEN 300WARD 500JONES No CommissionMARTIN 1400BLAKE No CommissionCLARK No CommissionSCOTT No CommissionKING No CommissionTURNER No CommissionADAMS No Commission

ENAME COMM---------- -------------------------JAMES No CommissionFORD No CommissionMILLER No Commission

14 rows selected.

Q28: Write a query to display the name, department name and department number of all employees.

SQL> SELECT ename,e.deptno,dname 2 FROM emp e,dept d 3 WHERE e.deptno=d.deptno;

ENAME DEPTNO DNAME---------- ---------- --------------SMITH 20 RESEARCHALLEN 30 SALESWARD 30 SALESJONES 20 RESEARCHMARTIN 30 SALESBLAKE 30 SALESCLARK 10 ACCOUNTINGSCOTT 20 RESEARCHKING 10 ACCOUNTINGTURNER 30 SALESADAMS 20 RESEARCHJAMES 30 SALESFORD 20 RESEARCH

MILLER 10 ACCOUNTING

14 rows selected.

Q29: Write a querry to display unique listing of all jobs that are in department number 30.

SQL> SELECT DISTINCT(job) 2 FROM emp 3 WHERE deptno=30;

JOB---------SALESMANCLERKMANAGER

Q30: Write a querry to display the employee name, department

name and location for all employees who earn a commission.

SQL> SELECT ename,dname,loc 2 FROM emp e,dept d 3 WHERE e.deptno=d.deptno AND comm IS NOT NULL;

ENAME DNAME LOC---------- -------------- -------------ALLEN SALES CHICAGOWARD SALES CHICAGO

MARTIN SALES CHICAGOTURNER SALES CHICAGO

Q31: Write a querry to display the employees name and department name of all employees who have ‘A ‘ in their name.

SQL> SELECT ename,dname 2 FROM emp e,dept d 3 WHERE e.deptno=d.deptno AND ename LIKE '%A%';

ENAME DNAME---------- --------------ALLEN SALESWARD SALESMARTIN SALESBLAKE SALESCLARK ACCOUNTINGADAMS RESEARCHJAMES SALES

7 rows selected.

Q32: Write a querry to display the name, job, department number for all employees who work at location DALLAS.

SQL> SELECT ename,job,e.deptno,dname 2 FROM emp e,dept d 3 WHERE e.deptno=d.deptno AND loc='DALLAS';

ENAME JOB DEPTNO DNAME---------- --------- ---------- --------------SMITH CLERK 20 RESEARCHJONES MANAGER 20 RESEARCHSCOTT ANALYST 20 RESEARCHADAMS CLERK 20 RESEARCHFORD ANALYST 20 RESEARCH

Q33: Write a query to display the employee name and employee number along with their manager’s name and manager’s number.

SQL> SELECT e.ename,e.empno,m.ename mname,m.empno mgrno 2 FROM emp e,emp m 3 WHERE e.mgr=m.empno;

ENAME EMPNO MNAME MGRNO---------- ---------- ---------- ----------SMITH 7369 FORD 7902ALLEN 7499 BLAKE 7698WARD 7521 BLAKE 7698JONES 7566 KING 7839MARTIN 7654 BLAKE 7698BLAKE 7698 KING 7839CLARK 7782 KING 7839SCOTT 7788 JONES 7566TURNER 7844 BLAKE 7698ADAMS 7876 SCOTT 7788JAMES 7900 BLAKE 7698FORD 7902 JONES 7566MILLER 7934 CLARK 7782

13 rows selected.

Q.34 Write a query to display the employee name& employee number along with their manager's name,manager's numberalong with the employees who donot have a manager?

SQL> SELECT E.ENAME,E.EMPNO,M.ENAME,E.MGR 2 FROM EMP E LEFT OUTER JOIN EMP M 3 ON(E.MGR=M.EMPNO);

ENAME EMPNO ENAME MGR---------- ---------- ---------- ----------

FORD 7902 JONES 7566SCOTT 7788 JONES 7566JAMES 7900 BLAKE 7698TURNER 7844 BLAKE 7698MARTIN 7654 BLAKE 7698WARD 7521 BLAKE 7698ALLEN 7499 BLAKE 7698MILLER 7934 CLARK 7782ADAMS 7876 SCOTT 7788CLARK 7782 KING 7839BLAKE 7698 KING 7839

ENAME EMPNO ENAME MGR---------- ---------- ---------- ----------JONES 7566 KING 7839SMITH 7369 FORD 7902KING 7839

14 rows selected.

Q35: Write a querry to display the employee name , department number and all the employee that work in the same department as the given employee.

SQL> SELECT e1.ename,e1.deptno,e2.ename 2 FROM emp e1,emp e2 3 WHERE e1.deptno=e2.deptno 4 AND e1.empno>e2.empno;

ENAME DEPTNO ENAME---------- ---------- ----------JONES 20 SMITHSCOTT 20 SMITHADAMS 20 SMITHFORD 20 SMITHWARD 30 ALLENMARTIN 30 ALLENBLAKE 30 ALLENTURNER 30 ALLENJAMES 30 ALLENMARTIN 30 WARDBLAKE 30 WARD

ENAME DEPTNO ENAME---------- ---------- ----------TURNER 30 WARDJAMES 30 WARDSCOTT 20 JONESADAMS 20 JONESFORD 20 JONESBLAKE 30 MARTINTURNER 30 MARTINJAMES 30 MARTINTURNER 30 BLAKEJAMES 30 BLAKEKING 10 CLARK

ENAME DEPTNO ENAME---------- ---------- ----------MILLER 10 CLARKADAMS 20 SCOTTFORD 20 SCOTTMILLER 10 KINGJAMES 30 TURNERFORD 20 ADAMS

28 rows selected.

Q36: Write a query to display the name , job , department name, salary and grade for all employees.SQL>SELECT ename,job,dname,sal,grade 2 FROM emp e,dept d,salgrade s 3 WHERE e.deptno=d.deptno AND( sal BETWEEN losal AND hisal);

ENAME JOB DNAME SAL GRADE---------- --------- -------------- ---------- ----------SMITH CLERK RESEARCH 800 1ADAMS CLERK RESEARCH 1100 1JAMES CLERK SALES 950 1WARD SALESMAN SALES 1250 2MARTIN SALESMAN SALES 1250 2MILLER CLERK ACCOUNTING 1300 2ALLEN SALESMAN SALES 1600 3TURNER SALESMAN SALES 1500 3

JONES MANAGER RESEARCH 2975 4BLAKE MANAGER SALES 2850 4CLARK MANAGER ACCOUNTING 2450 4

ENAME JOB DNAME SAL GRADE---------- --------- -------------- ---------- ----------SCOTT ANALYST RESEARCH 3000 4FORD ANALYST RESEARCH 3000 4KING PRESIDENT ACCOUNTING 5000 5

14 rows selected.

Q37SQL> SELECT ename,hiredate 2 FROM emp 3 WHERE hiredate> 4 (SELECT hiredate 5 FROM emp 6 WHERE ename='BLAKE');

ENAME HIREDATE---------- ---------MARTIN 28-SEP-81CLARK 09-JUN-81SCOTT 19-APR-87KING 17-NOV-81TURNER 08-SEP-81ADAMS 23-MAY-87JAMES 03-DEC-81FORD 03-DEC-81MILLER 23-JAN-82

9 rows selected.

Q38SQL>SELECT e.ename e_name,e.hiredate e_hiredate,m.ename m_name,m.hiredate m_hiredate 2 FROM emp e,emp m 3 WHERE m.empno=e.mgr AND MONTHS_BETWEEN(e.hiredate,m.hiredate)<0;

E_NAME E_HIREDAT M_NAME M_HIREDAT---------- --------- ---------- ---------SMITH 17-DEC-80 FORD 03-DEC-81ALLEN 20-FEB-81 BLAKE 01-MAY-81

WARD 22-FEB-81 BLAKE 01-MAY-81JONES 02-APR-81 KING 17-NOV-81BLAKE 01-MAY-81 KING 17-NOV-81CLARK 09-JUN-81 KING 17-NOV-81

6 rows selected.

Q.39 Write a query to display the employees' name& the amount of the salaries of the employees are indicated throughasterisks.Each asterisk signifies a hundred dollars?

SQL>SELECT EMPNO||' '||RPAD('*',(ROUND(SAL/100)),'*') 2 "EMPLOYEE AND THEIR SAL" FROM EMP 3 ORDER BY SAL DESC;

EMPLOYEE AND THEIR SAL--------------------------------------------------------------------------------7839 **************************************************7788 ******************************7902 ******************************7566 ******************************7698 *****************************7782 *************************7499 ****************7844 ***************7934 *************7521 *************7654 *************

EMPLOYEE AND THEIR SAL--------------------------------------------------------------------------------7876 ***********7900 **********7369 ********

14 rows selected.

Q40SQL>SELECT MAX(sal) high_sal,MIN(sal) low_sal,SUM(sal) sum_sal,AVG(sal) avg_sal 2 FROM emp;

HIGH_SAL LOW_SAL SUM_SAL AVG_SAL---------- ---------- ---------- ---------- 5000 800 29025 2073.21429

Q41SQL>SELECT job,MAX(sal) max_sal,MIN(sal) min_sal,SUM(sal) sum_sal,ROUND(AVG(sal)) avg_sal 2 FROM emp 3 GROUP BY job;

JOB MAX_SAL MIN_SAL SUM_SAL AVG_SAL--------- ---------- ---------- ---------- ----------ANALYST 3000 3000 6000 3000CLERK 1300 800 4150 1038MANAGER 2975 2450 8275 2758PRESIDENT 5000 5000 5000 5000SALESMAN 1600 1250 5600 1400

Q42SQL> SELECT job,COUNT(EMPNO) employees 2 FROM emp 3 GROUP BY job;

JOB EMPLOYEES--------- ------------ANALYST 2CLERK 4MANAGER 3PRESIDENT 1SALESMAN 4

Q43SQL> SELECT COUNT (DISTINCT mgr) managers 2 FROM emp;

MANAGERS---------- 6

Q44SQL> SELECT MAX(sal)-MIN(sal) diff_sal

2 FROM emp;

DIFF_SAL---------- 4200

Q45SQL> SELECT mgr,MIN(sal) m_sal 2 FROM emp 3 GROUP BY mgr 4 HAVING MIN(sal)>1000 AND mgr IS NOT NULL;

MGR M_SAL---------- ---------- 7566 3000 7782 1300 7788 1100 7839 2450

Q.46 Write a query to display the department name,location name,number of employees and the average salary for all employees in that department?

SQL> SELECT dname,loc,COUNT(*) "Count", AVG(sal) "Avg_sal" 2 FROM DEPT d,EMP e 3 WHERE e.deptno=d.deptno 4 GROUP BY dname,loc;

DNAME LOC Count Avg_sal-------------- ------------- ---------- ----------ACCOUNTING NEW YORK 3 2916.66667RESEARCH DALLAS 5 2175SALES CHICAGO 6 1566.66667

Q47SQL> SELECT ename,hiredate 2 FROM emp 3 WHERE deptno = 4 (SELECT deptno 5 FROM emp 6 WHERE ename='BLAKE');

ENAME HIREDATE

---------- ---------ALLEN 20-FEB-81WARD 22-FEB-81MARTIN 28-SEP-81BLAKE 01-MAY-81TURNER 08-SEP-81JAMES 03-DEC-81

6 rows selected.

Q48SQL> SELECT empno,ename 2 FROM emp 3 WHERE sal > 4 (SELECT AVG(sal) 5 FROM emp);

EMPNO ENAME---------- ---------- 7566 JONES 7698 BLAKE 7782 CLARK 7788 SCOTT 7839 KING 7902 FORD

6 rows selected.

Q49SQL> SELECT empno,ename 2 FROM emp 3 WHERE deptno = ANY 4 (SELECT deptno 5 FROM emp 6 WHERE ename LIKE '%T%');

EMPNO ENAME---------- ---------- 7369 SMITH 7876 ADAMS 7902 FORD 7788 SCOTT 7566 JONES 7499 ALLEN

7698 BLAKE 7654 MARTIN 7900 JAMES 7844 TURNER 7521 WARD

11 rows selected.

Q50SQL> SELECT ename,sal 2 FROM emp 3 WHERE mgr = 4 (SELECT empno 5 FROM emp 6 WHERE ename='KING');

ENAME SAL---------- ----------JONES 2975BLAKE 2850CLARK 2450

Q51SQL> SELECT e.deptno,ename,job 2 FROM emp e,dept d 3 WHERE e.deptno=d.deptno AND dname='SALES';

DEPTNO ENAME JOB---------- ---------- --------- 30 ALLEN SALESMAN 30 WARD SALESMAN 30 MARTIN SALESMAN 30 BLAKE MANAGER 30 TURNER SALESMAN 30 JAMES CLERK

6 rows selected.

Q52SQL>SELECT empno,ename,sal 2 FROM emp 3 WHERE sal >

4 (SELECT AVG(sal) 5 FROM emp) 6 AND deptno = ANY 7 (SELECT deptno 8 FROM emp 9 WHERE ename LIKE '%T%');

EMPNO ENAME SAL---------- ---------- ---------- 7902 FORD 3000 7788 SCOTT 3000 7566 JONES 2975 7698 BLAKE 2850

Q53SQL>SELECT ename,deptno,sal 2 FROM emp 3 WHERE deptno = ANY 4 (SELECT deptno 5 FROM emp 6 WHERE comm <>0) 7 AND 8 sal = ANY 9 (SELECT sal 10 FROM emp 11 WHERE comm <>0);

ENAME DEPTNO SAL---------- ---------- ----------MARTIN 30 1250WARD 30 1250ALLEN 30 1600

Q54SQL> SELECT * 2 FROM emp 3 WHERE sal > ANY 4 (SELECT sal 5 FROM emp 6 WHERE job = 'CLERK');

EMPNO ENAME JOB MGR HIREDATE SAL COMM---------- ---------- --------- ---------- --------- ---------- ---------- DEPTNO

---------- 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

EMPNO ENAME JOB MGR HIREDATE SAL COMM---------- ---------- --------- ---------- --------- ---------- ---------- DEPTNO---------- 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

EMPNO ENAME JOB MGR HIREDATE SAL COMM---------- ---------- --------- ---------- --------- ---------- ---------- DEPTNO---------- 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

EMPNO ENAME JOB MGR HIREDATE SAL COMM---------- ---------- --------- ---------- --------- ---------- ----------* DEPTNO---------- 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

EMPNO ENAME JOB MGR HIREDATE SAL COMM---------- ---------- --------- ---------- --------- ---------- ---------- DEPTNO---------- 7934 MILLER CLERK 7782 23-JAN-82 1300 10

13 rows selected.