User Defined Function that recursively replaces string1 from string2
Create Function ReplaceRecursive
(@Input varchar(8000), @Find varchar(100), @Replace varchar(100))
RETURNS varchar(8000)
BEGIN
Declare @Output varchar(8000)
Declare @Counter int
Set@Output = @Input
Set@Counter = 1
While @Counter <= Len(@Output)
Begin
Set @Output = Replace(@Output, @Find, @Replace)
Set @Counter = @Counter + 1
End
Return@Output
END 
For most DBAs, normalization is an understood concept, a bread and butter bit of knowledge. However, it is not at all unusual to review a database design by a development group for an OLTP (OnLine Transaction Processing) environment and find that the schema chosen is anything but properly normalized. This article by Brian Kelley will give you the core knowledge to data model.
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