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pract6.lst
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SQL> spool
currently spooling to pract6.lst
SQL> SELECT SYSDATE
2 FROM DUAL;
SYSDATE
---------
12-JAN-19
SQL> SELECT TO_CHAR(SYSDATE,'HH:MI:SS')
2 FROM DUAL;
TO_CHAR(
--------
02:52:15
SQL> SELECT TO_CHAR(SYSDATE, 'DAY DD MON MM YYYY')
2 FROM DUAL;
TO_CHAR(SYSDATE,'DAYDDMONMMYYYY')
------------------------------------------------------------
SATURDAY 12 JAN 01 2019
SQL> SELECT TO_CHAR(SYSDATE,'HH:MM')
2 FROM DUAL;
TO_CH
-----
02:01
SQL> SELECT (SYSDATE-FI)
2 FROM PLAN_DOCENTE
3 WHERE (DNI=8888 AND CAS=11);
(SYSDATE-FI)
------------
3420.62113
SQL> SELECT DISTINCT P AS NOMBRE
2 FROM PROFESOR NATURAL JOIN PLAN_DOCENTE
3 WHERE ((FF IS NULL AND (SYSDATE-FI)>365) OR (FF IS NOT NULL AND (FF-FI)>365));
NOMBRE
------------------------------------------------------------
MARIO
JUAN
PEDRO
FRANCISCO
SOLEDAD
CARLOS
IVAN
CARMEN
DAVID
MARIA
JOSE MANUEL
NOMBRE
------------------------------------------------------------
ANGELA
12 rows selected.
SQL> SELECT COUNT(DNI)
2 FROM DEPARTAMENTO JOIN AREA
3 ON DEPARTAMENTO.CD=AREA.CD
4 JOIN PROFESOR
5 ON AREA.CAR=PROFESOR.CAR
6 WHERE D='ASTROFISICA'
7 GROUP BY D;
COUNT(DNI)
----------
1
SQL> SELECT D, COUNT(DNI)
2 2 FROM DEPARTAMENTO JOIN AREA
3 3 ON DEPARTAMENTO.CD=AREA.CD
4 4 JOIN PROFESOR
5 5 ON PROFESOR.CAR=AREA.CAR
6 6 GROUP BY D
7 7 ORDER BY D;
2 FROM DEPARTAMENTO JOIN AREA
*
ERROR at line 2:
ORA-00923: FROM keyword not found where expected
SQL> SELECT D, COUNT(DNI)
2 FROM DEPARTAMENTO JOIN AREA
3 ON DEPARTAMENTO.CD=AREA.CD
4 JOIN PROFESOR
5 ON PROFESOR.CAR=AREA.CAR
6 GROUP BY D
7 ORDER BY D;
D COUNT(DNI)
------------------------------------------------------------ ----------
ANALISIS MATEMATICO 3
ASTROFISICA 1
ESTADISTICA, INVESTIGACION OPERATIVA Y COMPUTACION 7
MATEMATICA FUNDAMENTAL 1
SQL> SELECT D, COUNT (DISTINCT T)
2 FROM DEPARTAMENTO JOIN AREA
3 ON DEPARTAMENTO.CD=AREA.CD
4 JOIN ASIGNATURA
5 ON AREA.CAR=ASIGNATURA.CAR
6 WHERE D='ESTADISTICA, INVESTIGACION OPERATIVA Y COMPUTACION'
7 GROUP BY D;
D COUNT(DISTINCTT)
-------------------------------------------------- ----------------
ESTADISTICA, INVESTIGACION OPERATIVA Y COMPUTACION 2
SQL> SELECT COUNT(DNI)
2 FROM PROFESOR JOIN AREA
3 ON PROFESOR.CAR=AREA.CAR
4 WHERE AR LIKE 'A%';
COUNT(DNI)
----------
3
SQL> SELECT T, COUNT(A)
2 FROM ASIGNATURA
3 GROUP BY T
4 ORDER BY T;
T COUNT(A)
---- ----------
GF 1
GII 7
GM 2
MII 2
SQL> SELECT A
2 FROM ASIGNATURA
3 WHERE CT IN (SELECT MAX(CT)
4 FROM ASIGNATURA);
A
--------------------------------------------------
ENSENANZA DE LA MATEMATICA
SQL> SELECT A
2 FROM ASIGNATURA
3 WHERE CT IN (SELECT MIN(CT)
4 FROM ASIGNATURA);
A
--------------------------------------------------
INTELIGENCIA ARTIFICIAL
ALMACENES DE DATOS
MINERIA DE DATOS
SQL> SELECT A, SUM(CT+CP+CL)
2 FROM ASIGNATURA
3 GROUP BY A;
A SUM(CT+CP+CL)
-------------------------------------------------- -------------
ALGEBRA 6
BASES DE DATOS 6
INFORMATICA BASICA 6
OPTIMIZACION 6
CALCULO 6
GESTION DE RIESGOS 6
ENSENANZA DE LA MATEMATICA 6
ANALISIS COMPLEJO 7.5
INTELIGENCIA ARTIFICIAL 6
MINERIA DE DATOS 3
ALMACENES DE DATOS 3
A SUM(CT+CP+CL)
-------------------------------------------------- -------------
ASTRONOMIA 6
12 rows selected.
SQL> LIST
1 SELECT A, SUM(CT+CP+CL)
2 FROM ASIGNATURA
3* GROUP BY A
SQL> SELECT A
2 FROM ASIGNATURA
3 WHERE CAS IN (SELECT CAS
4 FROM ASIGNATURA
5 GROUP BY CAS
6 HAVING (SUM(CT+CP+CL))>=(SELECT MAX(SUM(CT+CP+CL))
7 FROM ASIGNATURA
8 GROUP BY CAS))
9 ;
A
--------------------------------------------------
ANALISIS COMPLEJO
SQL> LIST
1 SELECT A
2 FROM ASIGNATURA
3 WHERE CAS IN (SELECT CAS
4 FROM ASIGNATURA
5 GROUP BY CAS
6 HAVING (SUM(CT+CP+CL))>=(SELECT MAX(SUM(CT+CP+CL))
7 FROM ASIGNATURA
8 GROUP BY CAS))
9*
SQL> SELECT A
2 FROM ASIGNATURA
3 WHERE CAS IN (SELECT CAS
4 FROM ASIGNATURA
5 GROUP BY CAS
6 HAVING (SUM(CT+CP+CL))<=(SELECT MIN(SUM(CT+CP+CL))
7 FROM ASIGNATURA
8 GROUP BY CAS));
A
--------------------------------------------------
ALMACENES DE DATOS
MINERIA DE DATOS
SQL> SELECT AR
2 FROM AREA
3 WHERE CAR IN (SELECT CAR
4 FROM ASIGNATURA
5 WHERE CAS IN (SELECT CAS
6 FROM ASIGNATURA
7 GROUP BY CAS
8 HAVING (SUM(CT+CP+CL))>=(SELECT MAX(SUM(CT+CP+CL))
9 FROM ASIGNATURA
10 GROUP BY CAS)));
AR
------------------------------------------------------------
ANALISIS MATEMATICO
SQL> SELECT COUNT(CAS)
2 FROM PLAN_DOCENTE
3 WHERE DNI='1111'
4 GROUP BY DNI;
COUNT(CAS)
----------
2
SQL> SELECT SUM(CTA+CPA+CLA) AS TOTAL
2 FROM PLAN_DOCENTE
3 WHERE DNI='1111'
4 GROUP BY DNI;
TOTAL
----------
9
SQL> SELECT P
2 FROM PROFESOR JOIN PLAN_DOCENTE
3 ON PROFESOR.DNI=PLAN_DOCENTE.DNI
4 WHERE FF IS NULL
5 GROUP BY P
6 HAVING (SUM(CTA+CPA+CLA))>=(SELECT MAX(SUM(CTA+CPA+CLA))
7 FROM PLAN_DOCENTE
8 WHERE FF IS NULL
9 GROUP BY DNI);
P
------------------------------------------------------------
PEDRO
MARIA
SQL> SELECT AVG(COUNT(CAS))
2 FROM AREA JOIN ASIGNATURA
3 ON AREA.CAR=ASIGNATURA.CAR
4 GROUP BY AR
5 ;
AVG(COUNT(CAS))
---------------
1.5
SQL> SELECT AVG(COUNT(DNI))
2 FROM DEPARTAMENTO JOIN AREA
3 ON DEPARTAMENTO.CD=AREA.CD
4 JOIN PROFESOR
5 ON PROFESOR.CAR=AREA.CAR
6 GROUP BY D;
AVG(COUNT(DNI))
---------------
3
SQL> SELECT AR
2 FROM AREA JOIN ASIGNATURA
3 ON AREA.CAR=ASIGNATURA.CAR
4 GROUP BY AR
5 HAVING (COUNT(CAS)>3);
AR
------------------------------------------------------------
LENGUAJES Y SISTEMAS INFORMATICOS
SQL> SELECT AR
2 FROM AREA JOIN ASIGNATURA
3 ON AREA.CAR=ASIGNATURA.CAR
4 GROUP BY AR
5 HAVING (COUNT(CAS)>6);
no rows selected
SQL> SELECT D
2 FROM DEPARTAMENTO JOIN AREA
3 ON DEPARTAMENTO.CD=AREA.CD
4 JOIN PROFESOR
5 ON PROFESOR.CAR=AREA.CAR
6 GROUP BY D
7 HAVING (COUNT(DNI))<=(SELECT MIN(COUNT(DNI))
8 FROM DEPARTAMENTO JOIN AREA
9 ON DEPARTAMENTO.CD=AREA.CD
10 JOIN PROFESOR
11 ON PROFESOR.CAR=AREA.CAR
12 GROUP BY D);
D
------------------------------------------------------------
ASTROFISICA
MATEMATICA FUNDAMENTAL
SQL> SPOOL OFF