Fixed help files.

SqlServerProviders/FilesDatabase.sql

@@ -0,0 +1,47 @@
+
+create table [Directory] (
+	[FullPath] nvarchar(250) not null,
+	[Parent] nvarchar(250),
+	constraint [PK_Directory] primary key clustered ([FullPath])
+)
+
+create table [File] (
+	[Name] nvarchar(200) not null,
+	[Directory] nvarchar(250) not null
+		constraint [FK_File_Directory] references [Directory]([FullPath])
+		on delete cascade on update cascade,
+	[Size] bigint not null,
+	[Downloads] int not null,
+	[LastModified] datetime not null,
+	[Data] varbinary(max) not null,
+	constraint [PK_File] primary key clustered ([Name], [Directory])
+)
+
+create table [Attachment] (
+	[Name] nvarchar(200) not null,
+	[Page] nvarchar(200) not null,
+	[Size] bigint not null,
+	[Downloads] int not null,
+	[LastModified] datetime not null,
+	[Data] varbinary(max) not null,
+	constraint[PK_Attachment] primary key clustered ([Name], [Page])
+)
+
+if (select count(*) from sys.tables where [Name] = 'Version') = 0
+begin
+	create table [Version] (
+		[Component] varchar(100) not null,
+		[Version] int not null,
+		constraint [PK_Version] primary key clustered ([Component])
+	)
+end
+
+if (select count([Version]) from [Version] where [Component] = 'Files') = 0
+begin
+	insert into [Version] ([Component], [Version]) values ('Files', 3000)
+end
+
+if (select count([FullPath]) from [Directory] where [FullPath] = '/') = 0
+begin
+	insert into [Directory] ([FullPath], [Parent]) values ('/', NULL)
+end