Viewing 15 posts - 2,161 through 2,175 (of 2,640 total)
I've been using functions in tables this way for many years, used with care and probably not in highly transactional tables the advantages are great. I have also used this functionality...
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
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May 10, 2006 at 5:27 am
I'd recommend this book as a start
http://www.compman.co.uk/scripts/browse.asp?ref=450145
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
www.grumpyolddba.co.uk
http://sqlblogcasts.com/blogs/grumpyolddba/
May 10, 2006 at 5:19 am
adding more memory, say 32gb will aid performance by increasing the data cache size.
excluding raid 5 overhead every doubling of the number of available spindles doubles i/o performance.
No doubt you'll...
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
www.grumpyolddba.co.uk
http://sqlblogcasts.com/blogs/grumpyolddba/
May 9, 2006 at 11:04 am
Raid 5 has effectively a 75% overhead for writes, for pure reads it is ok. If you need performance don't use raid 5, simple as that. I cringe every time...
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
www.grumpyolddba.co.uk
http://sqlblogcasts.com/blogs/grumpyolddba/
May 4, 2006 at 12:57 pm
I have a note in my selective index rebuild routine that states that for a clustered index rebuild a 3 page table did nothing but a 7 page table did....
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
www.grumpyolddba.co.uk
http://sqlblogcasts.com/blogs/grumpyolddba/
May 4, 2006 at 7:17 am
the selectivity is the important factor, technically uniuqe is a property of the index. I guess in the search for suitable indexes the optimiser may consider a unique over a...
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
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http://sqlblogcasts.com/blogs/grumpyolddba/
May 4, 2006 at 4:16 am
you'd gain most benefit by not applying shrinks.
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
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http://sqlblogcasts.com/blogs/grumpyolddba/
May 4, 2006 at 4:11 am
You may have indexed views ? Covered or overlapping indexes may be present - it's not always possible to have one index covers all in a table and for performance...
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
www.grumpyolddba.co.uk
http://sqlblogcasts.com/blogs/grumpyolddba/
May 3, 2006 at 3:56 am
Profiler can be a performance hit, so be careful, running it across the network to another server is useful but will hit network traffic. Be as minimal with the events...
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
www.grumpyolddba.co.uk
http://sqlblogcasts.com/blogs/grumpyolddba/
May 3, 2006 at 3:46 am
Largely only datafile fragmentation is critical, assuming you have seperate drives/arrays/disks for data, logs, binaries.
The backups and tran logs will always fragment, you can't do much about backups but you...
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
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http://sqlblogcasts.com/blogs/grumpyolddba/
May 3, 2006 at 3:43 am
I'd also advise a service restart after you've defined your tempdb data files to re-initialsie tempdb, it should work correctly then.
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
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http://sqlblogcasts.com/blogs/grumpyolddba/
May 3, 2006 at 3:36 am
Sounds a very sensible solution to me.
If you are using multiple sql instances ( not vm or virtual servers ) then the memory for each instance, including default, should...
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
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http://sqlblogcasts.com/blogs/grumpyolddba/
May 3, 2006 at 3:32 am
never had any problems making database backups of ( ms ) log shipping databases, scheduled nightly backups of databases, log shipping continued unaffected.
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
www.grumpyolddba.co.uk
http://sqlblogcasts.com/blogs/grumpyolddba/
May 3, 2006 at 3:29 am
Raid 10 is good, and don't let anyone tell you otherwise! ![]()
It might be beneficial to consider an additional lun for data, in case you ever wish...
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
www.grumpyolddba.co.uk
http://sqlblogcasts.com/blogs/grumpyolddba/
May 3, 2006 at 3:27 am
hierachies of views usually hide poor database design or an attempt to produce a dss solution on top of an oltp database ( instead of a physical reporting database )
I've...
[font="Comic Sans MS"]The GrumpyOldDBA[/font]
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http://sqlblogcasts.com/blogs/grumpyolddba/
May 2, 2006 at 2:22 am
Viewing 15 posts - 2,161 through 2,175 (of 2,640 total)