The document discusses using transactions in SQL to insert, update, and delete records from multiple tables simultaneously. It provides examples of starting a transaction, inserting records into tables, and committing the transaction to persist the changes. Specifically, it inserts records into tables for students, courses, and a joining table for student courses, and uses a transaction to delete and insert new records while joining data from multiple tables in a single query.

1. U N I V E R S I D A D T E C N O L Ó G I C A D E L E S T A D O D E Z A C A T E C A S
U N I D A D A C A D E M I C A D E P I N O S
T E C N O L O G Í A S D E L A I N F O R M A C I Ó N Y C O M U N I C A C I Ó N
TEMA:
TRANSACCIÓN
MATERIA:
BASE DE DATOS PARA APLICACIONES
PROFESOR:
ITIC. ELOY CONTRERA DE LIRA
ALUMNO(A):
OCTAVIO ARTURO SALAS ESQUIVEL
CARRERA:
INGENIERIA EN TECNOLOGÍAS DE LA INFORMACIÓN Y COMUNICACIÓN
GRADO Y GRUPO
8° CUATRIMESTRE “B”
PINOS, ZACATECAS. 27 DE FEBRERO

2. 1. inserta varios registros de manera simultánea en la tabla “ALUMNO”.
start transaction;
insert into alumno values('50','Eloy','Contreras','de Lira');
insert into alumno values('50','Octavio','Salas','Esquive');
commit;
begin;
insert into alumno values('50','Pepe','Garcia','Muños');
insert into alumno values('50','Octavio','Salas','Esquive');
commit;
set autocommit=0;
insert into alumno values('50','Eloy','Contreras','de Lira');
insert into alumno values('50','Octavio','Salas','Esquive');
commit;
2. borra todos los registros previos de la tabla “ALUMNO”. Inserta dos registro en la
tabla “ALUMNO”. Inserta dos registros en la tabla “MATERIA”. Inserta cuatro registros
en la tabla “ALUMNO_MATERIA”. Muestra la tabla “ALUMNO_MATERIA”
start transaction;
delete from alumno;
insert into alumno values('50','Octavio','Salas','Esquivel');
insert into alumno values('50','Maria','Gallegos','Morales');
insert into materia values('154','Matematicas');
insert into materia values('157','Bases de datos avanzadas');
insert into alumno_materia values('50','154','8');
insert into alumno_materia values('50','154','9');
insert into alumno_materia values('50','157','10');
insert into alumno_materia values('50','157','8');
select
alumno.nombre_alumno,materia.nombre_materia,alumno_materia.calif
icacion from alumno inner join alumno_materia inner join materia
on alumno.id_alumno=alumno_materia.id_alumno and
alumno_materia.id_materia=materia.id_materia;
commit;