D:\Simon Bolivar\INFORMATICA\ADM. BASE DE DATOS\CLASES\SQL\ADM_BD_3.sql 1 create database temporal create table carrera ( cod_carrera varchar(5) primary key, nombre_carrera varchar(30) ) Create table alumno ( rut numeric, dv varchar(1), nombre varchar(30), apellido varchar(30), email varchar(20) unique, fono numeric, edad int, cod_carrera varchar(5), Constraint pk_alumno primary key (rut,dv), Constraint fk_alu_carr foreign key (cod_carrera)references carrera (cod_carrera) ) insert insert insert insert insert into into into into into carrera carrera carrera carrera carrera insert into alumno insert into alumno insert into alumno 'CARR1') insert into alumno insert into alumno 'CARR1') insert into alumno 'CARR1') insert into alumno insert into alumno insert into alumno insert into alumno 'CARR2') insert into alumno ) insert into alumno insert into alumno insert into alumno ') insert into alumno 18,'CARR5') values('CARR1','Tecnologia Informatica') values('CARR2','Kinesiologia') values('CARR3','Administracion de Empresas') values('CARR4','Periodismo') values('CARR5','Comercio Exterior') values(11215512,'1','Mauricio','Leon','[email protected]',124578,23,'CARR1') values(12345679,'2','Juan','Castro','[email protected]',125781,24,'CARR1') values(11255127,'3','Mauricio','Gamboa,','[email protected]',712458,28, values(12151232,'4','Rigoberto','Toro','[email protected]',123625,24,'CARR1') values(10217512,'5','Carlos','Morales','[email protected]',184718,22, values(11215513,'6','Juan','Vicencio','[email protected]',111178,23, values(11111111,'7','Mario','Soto','[email protected]',126958,30,'CARR1') values(22222222,'8','Marcelo','Jara','[email protected]',121578,27,'CARR1') values(33333333,'9','Maura','Jara','[email protected]',624578,26,'CARR1') values(44444444,'k','Andres','Herrera','[email protected]',578124,25, values(55555555,'0','Raul','Figueroa','[email protected]',13698,32,'CARR2' values(77777777,'2','Ramon','Tanio','[email protected]',195841,21,'CARR3') values(88888888,'4','Luis','Rivas','[email protected]',278451,22,'CARR3') values(99999999,'1','Manuel','Barrera','[email protected]',21578,20,'CARR4 values(12121212,'7','Francisco','Gutierrez','[email protected]',129875, select * from carrera select * from alumno --1) select cod_carrera as 'CARRERA', count(*) as 'CANTIDAD ALUMNOS' from alumno group by cod_carrera --2) select cod_carrera as 'CARRERA', count(*) as 'CANTIDAD ALUMNOS' from alumno group by cod_carrera having (count(*) <= 2) --3) select alumno.nombre,alumno.apellido,alumno.email from alumno,carrera where carrera.nombre_carrera='tecnologia informatica' and carrera.cod_carrera=alumno. cod_carrera select a.nombre,a.apellido,a.email from alumno as a,carrera as c D:\Simon Bolivar\INFORMATICA\ADM. BASE DE DATOS\CLASES\SQL\ADM_BD_3.sql where c.nombre_carrera='tecnologia informatica' and c.cod_carrera=a.cod_carrera --4) select a.nombre,a.apellido,a.email,c.nombre_carrera from alumno as a,carrera as c where a.apellido like '[srl]%' and c.cod_carrera=a.cod_carrera 2