KNT danh sách lớp học phần sinh viên được phép đăng ký mv1

6. Bố cục luận văn

3.1.5.KNT danh sách lớp học phần sinh viên được phép đăng ký mv1

a) Mục đích:

- Lập danh sách lớp học phần sinh viên được phép đăng ký. b) Tạo bảng thể hiện KNT:

create table mv1(

masv character varying (12), malophp int,

mamh int,

tenmh character varying (30) );

c) Khởi tạo dữ liệu:

insert into mv1

select mv1b.masv, mv1a.malophp, mv1a.mamh,mv1a.tenmh from mv1a join mv1b on mv1a.mamh =mv1b.mamh;

d) Tạo các hàm và trigger:

* Theo chiến lược gia tăng đồng bộ:

create function mv1a_mv1_insert() returns trigger as 'qlsinhvien.dll', 'mv1a_mv1_insert' language c strict;

create trigger mv1a_mv1_insert after insert on mv1a for each row execute procedure mv1a_mv1_insert() ;

create function mv1a_mv1_delete() returns trigger as 'qlsinhvien.dll', 'mv1a_mv1_delete' language c strict;

create trigger mv1a_mv1_delete after delete on mv1a for each row execute procedure mv1a_mv1_delete();

create function mv1a_mv1_update() returns trigger as 'qlsinhvien.dll', 'mv1a_mv1_update' language c strict;

create trigger mv1a_mv1_update after update on mv1a for each row execute procedure mv1a_mv1_update();

create function mv1b_mv1_insert() returns trigger as 'qlsinhvien.dll', 'mv1b_mv1_insert' language c strict;

create trigger mv1b_mv1_insert after insert on mv1b for each row execute procedure mv1b_mv1_insert() ;

create function mv1b_mv1_delete() returns trigger as 'qlsinhvien.dll', 'mv1b_mv1_delete' language c strict;

create trigger mv1b_mv1_delete after delete on mv1b for each row execute procedure mv1b_mv1_delete();

create function mv1b_mv1_update() returns trigger as 'qlsinhvien.dll', 'mv1b_mv1_update' language c strict;

create trigger mv1b_mv1_update after update on mv1b for each row execute procedure mv1b_mv1_update();

* Theo chiến lược toàn phần đồng bộ:

create function mv1_all() returns trigger as 'qlsinhvien.dll', 'mv1_all' language c strict;

create trigger svmv1_all AFTER INSERT OR UPDATE OR DELETE on sinhvien execute procedure mv1_all() ;

create trigger lopmv1_all AFTER INSERT OR UPDATE OR DELETE on lop execute procedure mv1_all() ;

create trigger khoamv1_all AFTER INSERT OR UPDATE OR DELETE on khoa execute procedure mv1_all() ;

create trigger nganhmv1_all AFTER INSERT OR UPDATE OR DELETE on nganh execute procedure mv1_all() ;

create trigger chuongtrinhmv1_all AFTER INSERT OR UPDATE OR DELETE on chuongtrinh execute procedure mv1_all() ;

create trigger monhocmv1_all AFTER INSERT OR UPDATE OR DELETE on monhoc execute procedure mv1_all() ; (adsbygoogle = window.adsbygoogle || []).push({});

create trigger lophpmv1_all AFTER INSERT OR UPDATE OR DELETE on lophocphan execute procedure mv1_all() ;

create trigger hocmv1_all AFTER INSERT OR UPDATE OR DELETE on hoc execute procedure mv1_all() ;