Like the replace function, but can replace more than 1
value at a time.
e.g. select dbo.multiple_replace('hello', 'e', '1', default) gives 'h1llo'. Equivalent to: select replace('hello', 'e', '1')
e.g. select dbo.multiple_replace('hello world', 'e;w;ld', '1;2;END', default) gives 'h1llo 2orEND'
e.g. select dbo.multiple_replace('hello world', 'e$w$ld', '1$2$END', '$') gives 'h1llo 2orEND'
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.