Base de datos

--create database sistecc
--use sistecc
/*create table alumnos
(
control varchar (10),
nombre varchar (35),
domicilio varchar (30),
id_ciu varchar (5),
sexo char,
edad int,
grupoint,
primary key(control)
)
alter table alumnos
with nocheck
add constraint a check (sexo like 'M')
CREATE table estados
(
id_edo varchar (10),
nom_edo varchar (25),
foreign key(id_edo)references alumnos (control)
)

create table detallematerias
(
id_mae varchar (5),
id_mat varchar (25),
hora varchar (10),
grupo int
)
create table ciudades
(
id_ciu varchar (10),nom_ciu varchar (35),
id_edo varchar (5)
foreign key (id_ciu) references alumnos(control)
)
create table maestros
(
id_mae varchar (10),
nom_mae varchar (35),
foreign key (id_mae) referencesalumnos (control)
)
create table materias
(
id_mat varchar (10),
nom_mat varchar (3),
foreign key (id_mat) references alumnos (control)
)
alter table alumnos
with nocheck
add constraintb check (edad > 0)
select*from materias*/
--select control as nc
--from alumnos
/*insert into alumnos values('052896h','persona1','bazares 23','01','m',19,01)
insert into alumnosvalues('052896g','juan','colibri 78','02','m',19,01)
insert into alumnos values('052896i','pedro','calabaza 41','03','m',20,01)
insert into alumnos values('052896j','joe','roca 456','01','m',19,01) */
/*insertinto alumnos values('052896k','beto','sandia 56','01','m',19,01)
insert into alumnos values('052896l','ricardo','santiago 32','01','m',20,01)
insert into alumnos values('052896m','demitrio','ahorcado12','01','m',19,01)
insert into alumnos values('052896n','sebastian','ajonjoli 89','02','m',19,01)
insert into alumnos values('052896o','armando','luz 569','02','m',20,01)
insert into alumnosvalues('052896p','renato','renta 78','02','m',20,01)
insert into estados values('052896g','05')*/
/*insert into estados values('052896h','02')
insert into estados values('052896i','07')
insert into...