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JokeRe: Why this is faster? Pin
Rob Graham8-Jun-07 2:51
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GeneralRe: Why this is faster? Pin
Arun.Immanuel8-Jun-07 2:54
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GeneralRe: Why this is faster? Pin
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QuestionHow to alter table Pin
rzthebeginner8-Jun-07 2:21
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Arun.Immanuel8-Jun-07 2:37
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AnswerRe: How to alter table Pin
Rob Graham8-Jun-07 3:02
Rob Graham8-Jun-07 3:02 
In general you can't, unless you are willing to destroy all the columns that are to come after the new one, then add them back.

In most cases, column order at definition time is not particularly relevant. Unless they are part of a clustered index, the definition order has no relation to the storage order on disk. The only impact is if you do a query of the form "select * from tablename", the definition order becomes the default order for returning the columns. This is bad practice anyway, since it usually means you are fetching more data than you really need; "select col3,col1,col2, col4 from tablename" is the recommended approach, and in that case you have specified whatever return column order you desire.



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