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Discuss content posted by Alok Dwivedi
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An Un-indexed Foreign Key Gotcha
23 posts, Page 3 of 3
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An Un-indexed Foreign Key Gotcha
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Gary Varga
Gary Varga
Posted Monday, November 16, 2009 6:38 PM
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Last Login: Today @ 6:40 AM
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sqlpro (11/9/2009)
thanks for the reply. probably i misunderstood but following is the link i got my understanding from.its here http://www.informit.com/library/content.aspx?b=STY_Sql_Server_7&seqNum=145
Careful. You are quoting from a book that is over ten years old. This is usually fine if the book is about theoretical or academic work but that book is a "Teach Yourself To Be A Dummy In 60 Seconds" styled book on SQL Server 7.
I know some people may still be supporting SQL Server 7 installations.
I know that a lot of people like these types of books.
I only said be careful.
Gaz
-- Stop your grinnin' and drop your linen...they're everywhere!!!
Post #819756
L' Eomot Inversé
L' Eomot Inversé
Posted Monday, January 11, 2010 9:13 AM
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A really nice article. Good explanation.
Tom
Tom
Is minic a gheibheann béal oscailte dorn dúnta.
Is minig a cheapas beul fosgailte dòrn dùinte.
http://es.linkedin.com/in/tomthomsonsoftware
Post #845494
Ionut Hrubaru
Ionut Hrubaru
Posted Wednesday, January 20, 2010 4:01 AM
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Enforcing delete cascade will also help here, instead of creating indexes. I believe it should eliminate the deadlock. Of course if you enable delete cascade it's no point in deleting from child table first and then parent table. We have to do just a delete from parent table.
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