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Stairway to SQL Server Indexes: Step 13, Insert Update Delete


Stairway to SQL Server Indexes: Step 13, Insert Update Delete

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David Durant
David Durant
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Comments posted to this topic are about the item Stairway to SQL Server Indexes: Step 13, Insert Update Delete
dronusoid
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Bryant McClellan
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You have a contradiction when you talks about page splits on inserts.

>>
Ascending Sequence:...Once a page becomes full, it stays full; resulting in little or no internal fragmentation.

Descending Sequence:...The internal fragmentation is the same as
the ascendingsequence scenario; at or near 100%.
<<

Either Ascending should be "at or near 100%" or Descending should be "little or no fragmentation".

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ChiragNS
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I think all the author is trying to say is that in both the cases there will be little de-fragmentation. So overall fragmentation will be near to 100.

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colinallen@hsbc.com
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If a page contains ghosted records will it still split on insert?



Gullimeel
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There is a DML trigger defined on the table.


Can you please let me know if this in actually cause delete/insert for updarte? I couldnt see this behaviour.

GulliMeel

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great post.i read it through 1 to 15.

but there is some mistake.for example,10th's list 2 is same as list one,which should be create table and load data instead of create view.

and 15th,guildline,the explanation of why use include column is mistake.
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