select k.id_kamar
from kamar k
left join pesan p on k.id_kamar = p.id_kamar
  and p.tgl_masuk <= :end and p.tgl_keluar >= :start
where p.id_kamar is null;

salam,
- bs

On 3/27/07, erfin_gustaman <[EMAIL PROTECTED]> wrote:
>
>   buat skripsi ku nih... mohon bantuaanya kk..
>
> relasi tabel untuk pemesanan kamar hotel:
>
> [tabel tamu]
> id_tamu(*)
> nama
> no_identitas
> alamat
> telepon
>
> [tabel pesan]
> id_tamu(**)
> id_kamar(**)
> tgl_masuk
> tgl_keluar
> tgl_pesan
>
> [tabel kamar]
> id_kamar(*)
> tipe_kamar
> fasilitas
> tarif_kamar
> gambar
> no_kamar
>
> bingung kalo pesannya di tanggal yang beda tapi di nomor kamar yang
> sama..
> contoh kasus:
> a) tamu 1 pesan kamar untuk tgl 17-03-2007 s/d 24-03-2007, dikasih no
> kamar 1
> b) tamu 2 pesan kamar untuk tgl 25-03-2007 s/d 31-03-2007, dikasih no
> kamar 1 juga
>
> nah..
> c) tamu 3 pesan kamar untuk tgl 19-03-2007 s/d 31-03-2007,
> dikasihkamar yang masih kosong
>
> querynya gimana ya?? ato relasinya masih salah gitu, harusnya gmn??
>
> NB : dbnya pake mysql
>
>  
>


[Non-text portions of this message have been removed]



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