Ngày tải lên :
01/05/2014, 15:20
... dtnxb)
SACH(masach,tensach,soluongco,theloai,tinhtrang,dongia,namxb,matg,tentg
, manxb, tennxb)
PHIEUMUON (sopmuon, mathe, manv, ngaymuon, songaymuon)
SACHMUON (sopmuon, masach , soluong)
PHIEUNHACTRA (sopnhactra, sopmuon, ... dtnxb)
SACH(masach,tensach,soluongco,theloai,tinhtrang,dongia,namxb,tentg,tennxb)
PHIEUMUON (sopmuon,ngaymuon,songaymuon)
SACHMUON (sopmuon, masach , soluong)
PHIEUNHACTRA(sopnhactra,sopmuon,mathe,hotendg,masach,tensach,tentg,
ngaylap)
B2. ... trg_sachmuon_update
ON SACHMUON
FOR UPDATE
AS
if update(soluong)
IF @@ROWCOUNT=1
BEGIN
update sach
set sach.soluongco = sach.soluongco - (inserted.soluong -
deleted.soluong)
from(deleted inner join inserted...