Multiple IDS and Constraint

Giganews Newsgroups
Subject: Multiple IDS and Constraint
Posted by:  Shapper (mdmou…@gmail.com)
Date: Sun, 9 Dec 2012

Hello,

I have a table Packs which "wraps" different formats of the same file:

create table dbo.Packs
(
  Id int identity not null
    constraint Packs_Id_PK primary key clustered (Id),
  Created datetime not null
);

create table dbo.Files
(
  Id int identity not null
    constraint Files_Id_PK primary key clustered (Id),
  PackId int not null,
  Data varbinary (max) filestream null
    constraint Files_Data_DF default (0x),    
  [Key] uniqueidentifier rowguidcol not null
    constraint Files_Key_U unique,      
  Mime nvarchar (200) not null
) filestream_on [STORAGE];

Consider a Pack ID = 1, for a video, with 3 files associated to it (File ID = 1, File ID = 2, File ID = 3).

What I would like is all files to have the same ID as the PACK ID = 1.

Then I would get a file using something like: GET FILE ID = PACK ID & FILE MIME = "video/mp4".

Is this possible?

And is it possible to set a constraint where for a given FILE ID there can be no repeated MIMES?

Thank You,

Miguel

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