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products_events.sql
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products_events.sql
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create table products (
id integer primary key not null,
name varchar(30) not null,
unit varchar(10) not null,
product_key varchar(30) not null,
price double not null,
check (char_length(product_key) >= 3 and char_length(product_key) <= 30),
check (char_length(name) <= 30)
);
create table events_log (
id integer primary key auto_increment not null,
txn varchar(10) not null,
txn_date datetime not null
);
insert into products values(0, "", "", "000", 0.0);
select * from products;
select * from events_log;
truncate table products;
drop table eventos;
drop table articulos;
delimiter //
-- create trigger fecha_eventos_trigger
-- before insert on eventos
-- for each row
-- begin
-- set new.fecha = now();
-- end;
create trigger events_log_insert
after insert on products
for each row
begin
insert into events_log(txn, txn_date) values("INSERT", now());
end;
create trigger events_log_update
after update on products
for each row
begin
insert into events_log(txn, txn_date) values("UPDATE", now());
end;
create trigger events_log_delete
after delete on products
for each row
begin
insert into events_log(txn, txn_date) values("DELETE", now());
end;
delimiter ;