Replace the Console.WriteLine with whatever you want, log4net,  Debug, trace, etc, and it works!

Does exactly what it says on the tin!

The source and the target images are here. That’s a photo I took a few weeks ago, if you do decide to steal it, please put a message on there that points back to me Anyway, the target image is 14×15 pixels smaller – that’s a whopping 210 pixels different! It shouldn’t be too hard to match up the two images, or should it?

Histograms

My first attempt was with Histograms. I grabbed some open source (unsafe!) code that generates an array of int[] and lists the histogram values, so I shoved both images through that, and got it to output the Source’s histogram value, the Target’s histogram value, the difference between them both, and the percentage of how similar it is, like so: (The first number is the key# of the int in the array, just because)

Right at the bottom, I had an average of all the percentages, to see how “similar” the image is. I was expecting the percentage to be fairly high, since there is only a few hundred pixels difference, and I didn’t change any of the levels or colours when I cut the images out of each other, but it told me there was a 87.7% similarity! That was very shockingly low. If you see something wrong with my maths from the code below, please let me know:

Image Processing

My next port of call was basically image processing, like what I did with my ANPR project that I created – basically filtering stuff out and building a “thumbprint” of the image, that hopefully will withstand being resized and stuff like that. Using image filters, flattening images and looking for large “blobs” of images, sofar I have come up with this:

That is the current “thumbprint” for the red channel, on the source image.

And the page result is:

abc 12345
def 67890

SELECT 'DROP PROCEDURE '+name FROM dbo.sysobjects WHERE (type = 'P') union all
SELECT 'DROP VIEW ' + name from dbo.sysobjects WHERE (type = 'V') union all
SELECT 'DROP FUNCTION ' + name from dbo.sysobjects WHERE (type = 'FN')

Which should hopefully give you the following:

DROP PROCEDURE yaf_registry_list
DROP PROCEDURE yaf_checkemail_save
DROP PROCEDURE yaf_registry_save
DROP PROCEDURE yaf_user_delete
DROP PROCEDURE yaf_active_updatemaxstats
DROP PROCEDURE yaf_user_approve
DROP PROCEDURE yaf_eventlog_delete
DROP PROCEDURE yaf_poll_stats
DROP PROCEDURE yaf_eventlog_create
DROP PROCEDURE yaf_poll_save
DROP PROCEDURE yaf_bannedip_save
DROP PROCEDURE yaf_choice_vote
DROP PROCEDURE yaf_bannedip_list
DROP PROCEDURE yaf_pollvote_check
DROP PROCEDURE yaf_bannedip_delete
DROP PROCEDURE yaf_post_list
DROP PROCEDURE yaf_category_list
DROP PROCEDURE yaf_user_accessmasks
DROP PROCEDURE yaf_category_save
DROP PROCEDURE yaf_forum_simplelist
DROP PROCEDURE yaf_category_simplelist
DROP PROCEDURE yaf_topic_delete
DROP PROCEDURE yaf_topic_active
DROP PROCEDURE yaf_forum_delete
DROP PROCEDURE yaf_topic_latest
DROP PROCEDURE yaf_forum_listpath
DROP PROCEDURE yaf_post_last10user
DROP PROCEDURE yaf_forum_listSubForums
DROP PROCEDURE yaf_message_approve
DROP PROCEDURE yaf_forum_moderatelist
DROP PROCEDURE yaf_message_delete
DROP PROCEDURE yaf_forum_list
DROP PROCEDURE yaf_pageload
DROP PROCEDURE yaf_forum_listall_fromcat
DROP PROCEDURE yaf_forum_listall
DROP PROCEDURE yaf_forum_save
DROP PROCEDURE yaf_forum_listallmymoderated
DROP PROCEDURE yaf_forum_updatelastpost
DROP PROCEDURE yaf_category_listread
DROP PROCEDURE yaf_forum_updatestats
DROP PROCEDURE yaf_user_list
DROP PROCEDURE yaf_forumaccess_group
DROP PROCEDURE yaf_nntpforum_update
DROP PROCEDURE yaf_group_save
DROP PROCEDURE yaf_topic_updatelastpost
DROP PROCEDURE yaf_message_update
DROP PROCEDURE yaf_topic_move
DROP PROCEDURE yaf_nntptopic_savemessage
DROP PROCEDURE yaf_system_initialize
DROP PROCEDURE yaf_nntpforum_list
DROP PROCEDURE yaf_system_updateversion
DROP PROCEDURE yaf_message_save
DROP PROCEDURE yaf_active_list
DROP PROCEDURE yaf_topic_prune
DROP PROCEDURE yaf_attachment_list
DROP PROCEDURE yaf_topic_save
DROP PROCEDURE yaf_board_create
DROP PROCEDURE yaf_board_delete
DROP PROCEDURE yaf_watchforum_list
DROP PROCEDURE yaf_board_poststats
DROP PROCEDURE yaf_category_delete
DROP PROCEDURE yaf_accessmask_delete
DROP PROCEDURE yaf_forumaccess_list
DROP PROCEDURE yaf_forumaccess_save
DROP PROCEDURE yaf_group_delete
DROP PROCEDURE yaf_forum_moderators
DROP PROCEDURE yaf_user_find
DROP PROCEDURE yaf_user_guest
DROP PROCEDURE yaf_pmessage_save
DROP PROCEDURE yaf_group_list
DROP PROCEDURE yaf_group_member
DROP PROCEDURE yaf_active_stats
DROP PROCEDURE yaf_usergroup_list
DROP PROCEDURE yaf_mail_createwatch
DROP PROCEDURE yaf_mail_delete
DROP PROCEDURE yaf_mail_list
DROP PROCEDURE yaf_message_findunread
DROP PROCEDURE yaf_message_getReplies
DROP PROCEDURE yaf_message_list
DROP PROCEDURE yaf_message_unapproved
DROP PROCEDURE yaf_board_stats
DROP PROCEDURE yaf_message_simplelist
DROP PROCEDURE yaf_watchtopic_list
DROP PROCEDURE yaf_post_list_reverse10
DROP PROCEDURE yaf_topic_listmessages
DROP PROCEDURE yaf_user_activity_rank
DROP PROCEDURE yaf_pmessage_list
DROP PROCEDURE yaf_forum_listread
DROP PROCEDURE yaf_pmessage_prune
DROP PROCEDURE yaf_topic_list
DROP PROCEDURE yaf_userpmessage_list
DROP PROCEDURE yaf_user_deleteold
DROP PROCEDURE yaf_pmessage_delete
DROP PROCEDURE yaf_smiley_delete
DROP PROCEDURE yaf_smiley_list
DROP PROCEDURE yaf_smiley_listunique
DROP PROCEDURE yaf_smiley_save
DROP PROCEDURE yaf_topic_lock
DROP PROCEDURE yaf_topic_findnext
DROP PROCEDURE yaf_topic_findprev
DROP PROCEDURE yaf_topic_info
DROP PROCEDURE yaf_topic_simplelist
DROP PROCEDURE yaf_forum_listtopics
DROP PROCEDURE yaf_user_removepointsbytopicid
DROP PROCEDURE yaf_user_resetpoints
DROP PROCEDURE yaf_user_removepoints
DROP PROCEDURE yaf_user_login
DROP PROCEDURE yaf_user_recoverpassword
DROP PROCEDURE yaf_user_nntp
DROP PROCEDURE yaf_user_savepassword
DROP PROCEDURE yaf_user_saveavatar
DROP PROCEDURE yaf_user_suspend
DROP PROCEDURE yaf_user_setpoints
DROP PROCEDURE yaf_active_listtopic
DROP PROCEDURE yaf_user_savesignature
DROP PROCEDURE yaf_active_listforum
DROP PROCEDURE yaf_userforum_list
DROP PROCEDURE yaf_user_upgrade
DROP PROCEDURE yaf_eventlog_list
DROP PROCEDURE yaf_user_simplelist
DROP PROCEDURE yaf_user_emails
DROP PROCEDURE yaf_user_getsignature
DROP PROCEDURE yaf_user_addpoints
DROP PROCEDURE yaf_user_adminsave
DROP PROCEDURE yaf_user_avatarimage
DROP PROCEDURE yaf_user_changepassword
DROP PROCEDURE yaf_user_deleteavatar
DROP PROCEDURE yaf_user_getpoints
DROP PROCEDURE yaf_watchforum_delete
DROP PROCEDURE yaf_watchforum_add
DROP PROCEDURE yaf_watchforum_check
DROP PROCEDURE yaf_watchtopic_delete
DROP PROCEDURE yaf_watchtopic_check
DROP PROCEDURE yaf_watchtopic_add
DROP PROCEDURE yaf_attachment_save
DROP PROCEDURE yaf_attachment_delete
DROP PROCEDURE yaf_attachment_download
DROP PROCEDURE yaf_usergroup_save
DROP PROCEDURE yaf_rank_delete
DROP PROCEDURE yaf_rank_list
DROP PROCEDURE yaf_rank_save
DROP PROCEDURE yaf_accessmask_save
DROP PROCEDURE yaf_accessmask_list
DROP PROCEDURE yaf_userforum_save
DROP PROCEDURE yaf_userforum_delete
DROP PROCEDURE yaf_board_save
DROP PROCEDURE yaf_board_list
DROP PROCEDURE yaf_nntpserver_delete
DROP PROCEDURE yaf_nntpserver_list
DROP PROCEDURE yaf_nntpserver_save
DROP PROCEDURE yaf_nntpforum_save
DROP PROCEDURE yaf_nntpforum_delete
DROP PROCEDURE yaf_nntptopic_list
DROP PROCEDURE yaf_pmessage_info
DROP PROCEDURE yaf_userpmessage_delete
DROP PROCEDURE yaf_pmessage_markread
DROP PROCEDURE yaf_replace_words_delete
DROP PROCEDURE yaf_replace_words_edit
DROP PROCEDURE yaf_replace_words_list
DROP PROCEDURE yaf_user_save
DROP PROCEDURE yaf_replace_words_save
DROP PROCEDURE yaf_checkemail_update
DROP VIEW yaf_vaccess
DROP FUNCTION yaf_forum_topics
DROP FUNCTION yaf_forum_posts
DROP FUNCTION yaf_bitset

Using the scrips below and this script should be all you need to have a YAF free database.

You might want to try running this script, to generate the create FK statements. Inconjuction with the drop FK statements, it will alow you to generate YAF scripts painlessly.

SELECT 'ALTER TABLE ' +  OBJECT_NAME(f.parent_object_id) + ' ADD CONSTRAINT '  + f.name + ' FOREIGN KEY (' + COL_NAME(fc.parent_object_id, fc.parent_column_id) + ') REFERENCES ' + OBJECT_NAME (f.referenced_object_id) + '(' + COL_NAME(fc.referenced_object_id, fc.referenced_column_id) + ')' FROM sys.foreign_keys AS f INNER JOIN sys.foreign_key_columns AS fc ON f.OBJECT_ID = fc.constraint_object_id

It should give you an output like:

ALTER TABLE yaf_Choice ADD CONSTRAINT FK_yaf_Choice_yaf_Poll FOREIGN KEY (PollID) REFERENCES yaf_Poll(PollID)
ALTER TABLE yaf_Topic ADD CONSTRAINT FK_yaf_Topic_yaf_Poll FOREIGN KEY (PollID) REFERENCES yaf_Poll(PollID)
ALTER TABLE yaf_PollVote ADD CONSTRAINT FK_yaf_PollVote_yaf_Poll FOREIGN KEY (PollID) REFERENCES yaf_Poll(PollID)
ALTER TABLE yaf_AccessMask ADD CONSTRAINT FK_yaf_AccessMask_yaf_Board FOREIGN KEY (BoardID) REFERENCES yaf_Board(BoardID)
ALTER TABLE yaf_Active ADD CONSTRAINT FK_yaf_Active_yaf_Board FOREIGN KEY (BoardID) REFERENCES yaf_Board(BoardID)
ALTER TABLE yaf_BannedIP ADD CONSTRAINT FK_yaf_BannedIP_yaf_Board FOREIGN KEY (BoardID) REFERENCES yaf_Board(BoardID)
ALTER TABLE yaf_Category ADD CONSTRAINT FK_yaf_Category_yaf_Board FOREIGN KEY (BoardID) REFERENCES yaf_Board(BoardID)
ALTER TABLE yaf_Group ADD CONSTRAINT FK_yaf_Group_yaf_Board FOREIGN KEY (BoardID) REFERENCES yaf_Board(BoardID)
ALTER TABLE yaf_NntpServer ADD CONSTRAINT FK_yaf_NntpServer_yaf_Board FOREIGN KEY (BoardID) REFERENCES yaf_Board(BoardID)
ALTER TABLE yaf_Rank ADD CONSTRAINT FK_yaf_Rank_yaf_Board FOREIGN KEY (BoardID) REFERENCES yaf_Board(BoardID)
ALTER TABLE yaf_Registry ADD CONSTRAINT FK_yaf_Registry_yaf_Board FOREIGN KEY (BoardID) REFERENCES yaf_Board(BoardID)
ALTER TABLE yaf_Smiley ADD CONSTRAINT FK_yaf_Smiley_yaf_Board FOREIGN KEY (BoardID) REFERENCES yaf_Board(BoardID)
ALTER TABLE yaf_User ADD CONSTRAINT FK_yaf_User_yaf_Board FOREIGN KEY (BoardID) REFERENCES yaf_Board(BoardID)
ALTER TABLE yaf_User ADD CONSTRAINT FK_yaf_User_yaf_Rank FOREIGN KEY (RankID) REFERENCES yaf_Rank(RankID)
ALTER TABLE yaf_Active ADD CONSTRAINT FK_yaf_Active_yaf_User FOREIGN KEY (UserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_CheckEmail ADD CONSTRAINT FK_yaf_CheckEmail_yaf_User FOREIGN KEY (UserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_EventLog ADD CONSTRAINT FK_yaf_EventLog_yaf_User FOREIGN KEY (UserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_Forum ADD CONSTRAINT FK_yaf_Forum_yaf_User FOREIGN KEY (LastUserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_Message ADD CONSTRAINT FK_yaf_Message_yaf_User FOREIGN KEY (UserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_PMessage ADD CONSTRAINT FK_yaf_PMessage_yaf_User1 FOREIGN KEY (FromUserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_Topic ADD CONSTRAINT FK_yaf_Topic_yaf_User FOREIGN KEY (UserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_Topic ADD CONSTRAINT FK_yaf_Topic_yaf_User2 FOREIGN KEY (LastUserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_UserForum ADD CONSTRAINT FK_yaf_UserForum_yaf_User FOREIGN KEY (UserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_UserGroup ADD CONSTRAINT FK_yaf_UserGroup_yaf_User FOREIGN KEY (UserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_UserPMessage ADD CONSTRAINT FK_yaf_UserPMessage_yaf_User FOREIGN KEY (UserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_WatchForum ADD CONSTRAINT FK_yaf_WatchForum_yaf_User FOREIGN KEY (UserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_WatchTopic ADD CONSTRAINT FK_yaf_WatchTopic_yaf_User FOREIGN KEY (UserID) REFERENCES yaf_User(UserID)
ALTER TABLE yaf_Forum ADD CONSTRAINT FK_yaf_Forum_yaf_Category FOREIGN KEY (CategoryID) REFERENCES yaf_Category(CategoryID)
ALTER TABLE yaf_Active ADD CONSTRAINT FK_yaf_Active_yaf_Forum FOREIGN KEY (ForumID) REFERENCES yaf_Forum(ForumID)
ALTER TABLE yaf_Forum ADD CONSTRAINT FK_yaf_Forum_yaf_Forum FOREIGN KEY (ParentID) REFERENCES yaf_Forum(ForumID)
ALTER TABLE yaf_ForumAccess ADD CONSTRAINT FK_yaf_ForumAccess_yaf_Forum FOREIGN KEY (ForumID) REFERENCES yaf_Forum(ForumID)
ALTER TABLE yaf_NntpForum ADD CONSTRAINT FK_yaf_NntpForum_yaf_Forum FOREIGN KEY (ForumID) REFERENCES yaf_Forum(ForumID)
ALTER TABLE yaf_Topic ADD CONSTRAINT FK_yaf_Topic_yaf_Forum FOREIGN KEY (ForumID) REFERENCES yaf_Forum(ForumID)
ALTER TABLE yaf_UserForum ADD CONSTRAINT FK_yaf_UserForum_yaf_Forum FOREIGN KEY (ForumID) REFERENCES yaf_Forum(ForumID)
ALTER TABLE yaf_WatchForum ADD CONSTRAINT FK_yaf_WatchForum_yaf_Forum FOREIGN KEY (ForumID) REFERENCES yaf_Forum(ForumID)
ALTER TABLE yaf_Attachment ADD CONSTRAINT FK_yaf_Attachment_yaf_Message FOREIGN KEY (MessageID) REFERENCES yaf_Message(MessageID)
ALTER TABLE yaf_Forum ADD CONSTRAINT FK_yaf_Forum_yaf_Message FOREIGN KEY (LastMessageID) REFERENCES yaf_Message(MessageID)
ALTER TABLE yaf_Message ADD CONSTRAINT FK_yaf_Message_yaf_Message FOREIGN KEY (ReplyTo) REFERENCES yaf_Message(MessageID)
ALTER TABLE yaf_Topic ADD CONSTRAINT FK_yaf_Topic_yaf_Message FOREIGN KEY (LastMessageID) REFERENCES yaf_Message(MessageID)
ALTER TABLE yaf_Active ADD CONSTRAINT FK_yaf_Active_yaf_Topic FOREIGN KEY (TopicID) REFERENCES yaf_Topic(TopicID)
ALTER TABLE yaf_Forum ADD CONSTRAINT FK_yaf_Forum_yaf_Topic FOREIGN KEY (LastTopicID) REFERENCES yaf_Topic(TopicID)
ALTER TABLE yaf_Message ADD CONSTRAINT FK_yaf_Message_yaf_Topic FOREIGN KEY (TopicID) REFERENCES yaf_Topic(TopicID)
ALTER TABLE yaf_NntpTopic ADD CONSTRAINT FK_yaf_NntpTopic_yaf_Topic FOREIGN KEY (TopicID) REFERENCES yaf_Topic(TopicID)
ALTER TABLE yaf_Topic ADD CONSTRAINT FK_yaf_Topic_yaf_Topic FOREIGN KEY (TopicMovedID) REFERENCES yaf_Topic(TopicID)
ALTER TABLE yaf_WatchTopic ADD CONSTRAINT FK_yaf_WatchTopic_yaf_Topic FOREIGN KEY (TopicID) REFERENCES yaf_Topic(TopicID)
ALTER TABLE yaf_NntpForum ADD CONSTRAINT FK_yaf_NntpForum_yaf_NntpServer FOREIGN KEY (NntpServerID) REFERENCES yaf_NntpServer(NntpServerID)
ALTER TABLE yaf_NntpTopic ADD CONSTRAINT FK_yaf_NntpTopic_yaf_NntpForum FOREIGN KEY (NntpForumID) REFERENCES yaf_NntpForum(NntpForumID)
ALTER TABLE yaf_ForumAccess ADD CONSTRAINT FK_yaf_ForumAccess_yaf_AccessMask FOREIGN KEY (AccessMaskID) REFERENCES yaf_AccessMask(AccessMaskID)
ALTER TABLE yaf_UserForum ADD CONSTRAINT FK_yaf_UserForum_yaf_AccessMask FOREIGN KEY (AccessMaskID) REFERENCES yaf_AccessMask(AccessMaskID)
ALTER TABLE yaf_ForumAccess ADD CONSTRAINT FK_yaf_ForumAccess_yaf_Group FOREIGN KEY (GroupID) REFERENCES yaf_Group(GroupID)
ALTER TABLE yaf_UserGroup ADD CONSTRAINT FK_yaf_UserGroup_yaf_Group FOREIGN KEY (GroupID) REFERENCES yaf_Group(GroupID)
ALTER TABLE yaf_UserPMessage ADD CONSTRAINT FK_yaf_UserPMessage_yaf_PMessage FOREIGN KEY (PMessageID) REFERENCES yaf_PMessage(PMessageID)

via SQL SERVER – 2005 – Find Tables With Foreign Key Constraint in Database « Journey to SQL Authority with Pinal Dave.

This script is a godsend. Basically, we had a botched install of Yet Another Forum, and we had to delete it (YAY!), but because of the FK constraints, we couldnt do a simple “DROP TABLE *” on the database, and nor could we just drop the database.

So I came up with this script that generated the SQL Script for me, based on the above:

SELECT 'ALTER TABLE ' +  OBJECT_NAME(f.parent_object_id) + ' DROP CONSTRAINT [' + f.name + ']' AS Moo, f.name AS ForeignKey,
OBJECT_NAME(f.parent_object_id) AS TableName,
COL_NAME(fc.parent_object_id,
fc.parent_column_id) AS ColumnName,
OBJECT_NAME (f.referenced_object_id) AS ReferenceTableName,
COL_NAME(fc.referenced_object_id,
fc.referenced_column_id) AS ReferenceColumnName
FROM sys.foreign_keys AS f
INNER JOIN sys.foreign_key_columns AS fc
ON f.OBJECT_ID = fc.constraint_object_id

Can be refined alot better, but works. The resulting script is as follows – note I added the “drop table” by hand:

ALTER TABLE yaf_Topic DROP CONSTRAINT [FK_yaf_Topic_yaf_Forum]
ALTER TABLE yaf_Active DROP CONSTRAINT [FK_yaf_Active_yaf_Forum]
ALTER TABLE yaf_ForumAccess DROP CONSTRAINT [FK_yaf_ForumAccess_yaf_Forum]
ALTER TABLE yaf_WatchForum DROP CONSTRAINT [FK_yaf_WatchForum_yaf_Forum]
ALTER TABLE yaf_NntpForum DROP CONSTRAINT [FK_yaf_NntpForum_yaf_Forum]
ALTER TABLE yaf_UserForum DROP CONSTRAINT [FK_yaf_UserForum_yaf_Forum]
ALTER TABLE yaf_Forum DROP CONSTRAINT [FK_yaf_Forum_yaf_Forum]
ALTER TABLE yaf_Forum DROP CONSTRAINT [FK_yaf_Forum_yaf_Message]
ALTER TABLE yaf_Topic DROP CONSTRAINT [FK_yaf_Topic_yaf_Message]
ALTER TABLE yaf_Attachment DROP CONSTRAINT [FK_yaf_Attachment_yaf_Message]
ALTER TABLE yaf_Message DROP CONSTRAINT [FK_yaf_Message_yaf_Message]
ALTER TABLE yaf_Topic DROP CONSTRAINT [FK_yaf_Topic_yaf_Poll]
ALTER TABLE yaf_Choice DROP CONSTRAINT [FK_yaf_Choice_yaf_Poll]
ALTER TABLE yaf_PollVote DROP CONSTRAINT [FK_yaf_PollVote_yaf_Poll]
ALTER TABLE yaf_Forum DROP CONSTRAINT [FK_yaf_Forum_yaf_Topic]
ALTER TABLE yaf_Message DROP CONSTRAINT [FK_yaf_Message_yaf_Topic]
ALTER TABLE yaf_Topic DROP CONSTRAINT [FK_yaf_Topic_yaf_Topic]
ALTER TABLE yaf_Active DROP CONSTRAINT [FK_yaf_Active_yaf_Topic]
ALTER TABLE yaf_WatchTopic DROP CONSTRAINT [FK_yaf_WatchTopic_yaf_Topic]
ALTER TABLE yaf_NntpTopic DROP CONSTRAINT [FK_yaf_NntpTopic_yaf_Topic]
ALTER TABLE yaf_Forum DROP CONSTRAINT [FK_yaf_Forum_yaf_User]
ALTER TABLE yaf_Message DROP CONSTRAINT [FK_yaf_Message_yaf_User]
ALTER TABLE yaf_Topic DROP CONSTRAINT [FK_yaf_Topic_yaf_User]
ALTER TABLE yaf_Topic DROP CONSTRAINT [FK_yaf_Topic_yaf_User2]
ALTER TABLE yaf_Active DROP CONSTRAINT [FK_yaf_Active_yaf_User]
ALTER TABLE yaf_CheckEmail DROP CONSTRAINT [FK_yaf_CheckEmail_yaf_User]
ALTER TABLE yaf_PMessage DROP CONSTRAINT [FK_yaf_PMessage_yaf_User1]
ALTER TABLE yaf_WatchForum DROP CONSTRAINT [FK_yaf_WatchForum_yaf_User]
ALTER TABLE yaf_WatchTopic DROP CONSTRAINT [FK_yaf_WatchTopic_yaf_User]
ALTER TABLE yaf_UserGroup DROP CONSTRAINT [FK_yaf_UserGroup_yaf_User]
ALTER TABLE yaf_UserForum DROP CONSTRAINT [FK_yaf_UserForum_yaf_User]
ALTER TABLE yaf_UserPMessage DROP CONSTRAINT [FK_yaf_UserPMessage_yaf_User]
ALTER TABLE yaf_EventLog DROP CONSTRAINT [FK_yaf_EventLog_yaf_User]
ALTER TABLE yaf_User DROP CONSTRAINT [FK_yaf_User_yaf_Rank]
ALTER TABLE yaf_Category DROP CONSTRAINT [FK_yaf_Category_yaf_Board]
ALTER TABLE yaf_Rank DROP CONSTRAINT [FK_yaf_Rank_yaf_Board]
ALTER TABLE yaf_AccessMask DROP CONSTRAINT [FK_yaf_AccessMask_yaf_Board]
ALTER TABLE yaf_Active DROP CONSTRAINT [FK_yaf_Active_yaf_Board]
ALTER TABLE yaf_User DROP CONSTRAINT [FK_yaf_User_yaf_Board]
ALTER TABLE yaf_BannedIP DROP CONSTRAINT [FK_yaf_BannedIP_yaf_Board]
ALTER TABLE yaf_Group DROP CONSTRAINT [FK_yaf_Group_yaf_Board]
ALTER TABLE yaf_NntpServer DROP CONSTRAINT [FK_yaf_NntpServer_yaf_Board]
ALTER TABLE yaf_Smiley DROP CONSTRAINT [FK_yaf_Smiley_yaf_Board]
ALTER TABLE yaf_Registry DROP CONSTRAINT [FK_yaf_Registry_yaf_Board]
ALTER TABLE yaf_ForumAccess DROP CONSTRAINT [FK_yaf_ForumAccess_yaf_Group]
ALTER TABLE yaf_UserGroup DROP CONSTRAINT [FK_yaf_UserGroup_yaf_Group]
ALTER TABLE yaf_UserPMessage DROP CONSTRAINT [FK_yaf_UserPMessage_yaf_PMessage]
ALTER TABLE yaf_ForumAccess DROP CONSTRAINT [FK_yaf_ForumAccess_yaf_AccessMask]
ALTER TABLE yaf_UserForum DROP CONSTRAINT [FK_yaf_UserForum_yaf_AccessMask]
ALTER TABLE yaf_NntpForum DROP CONSTRAINT [FK_yaf_NntpForum_yaf_NntpServer]
ALTER TABLE yaf_NntpTopic DROP CONSTRAINT [FK_yaf_NntpTopic_yaf_NntpForum]
ALTER TABLE yaf_Forum DROP CONSTRAINT [FK_yaf_Forum_yaf_Category]

drop table dbo.yaf_AccessMask
drop table dbo.yaf_Active
drop table dbo.yaf_Attachment
drop table dbo.yaf_BannedIP
drop table dbo.yaf_Board
drop table dbo.yaf_Category
drop table dbo.yaf_CheckEmail
drop table dbo.yaf_Choice
drop table dbo.yaf_EventLog
drop table dbo.yaf_Forum
drop table dbo.yaf_ForumAccess
drop table dbo.yaf_Group
drop table dbo.yaf_Mail
drop table dbo.yaf_Message
drop table dbo.yaf_NntpForum
drop table dbo.yaf_NntpServer
drop table dbo.yaf_NntpTopic
drop table dbo.yaf_PMessage
drop table dbo.yaf_Poll
drop table dbo.yaf_PollVote
drop table dbo.yaf_Rank
drop table dbo.yaf_Registry
drop table dbo.yaf_Replace_Words
drop table dbo.yaf_Smiley
drop table dbo.yaf_Topic
drop table dbo.yaf_User
drop table dbo.yaf_UserForum
drop table dbo.yaf_UserGroup
drop table dbo.yaf_UserPMessage
drop table dbo.yaf_WatchForum
drop table dbo.yaf_WatchTopic
drop view dbo.yaf_vaccess