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Viewing 15 posts - 2,161 through 2,175 (of 2,640 total)

  • RE: Complex Computed Columns

    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]
    www.grumpyolddba.co.uk
    http://sqlblogcasts.com/blogs/grumpyolddba/

  • RE: Collecting Performance Monitor Data and Scaling

    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/

  • RE: Database Size (PSOFT)

    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/

  • RE: Disk sizes for SQL

    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/

  • RE: DBCC DBREINDEX not improving SCAN DENSITY

    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/

  • RE: Unique index faster

    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]
    www.grumpyolddba.co.uk
    http://sqlblogcasts.com/blogs/grumpyolddba/

  • RE: Is there any benefit in shrinking database and log files?

    you'd gain most benefit by not applying shrinks.

    [font="Comic Sans MS"]The GrumpyOldDBA[/font]
    www.grumpyolddba.co.uk
    http://sqlblogcasts.com/blogs/grumpyolddba/

  • RE: Over Indexing

    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/

  • RE: SQL Profiler

    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/

  • RE: defragment disk for my sql server 2000

    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]
    www.grumpyolddba.co.uk
    http://sqlblogcasts.com/blogs/grumpyolddba/

  • RE: Tempdb more than one file

    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]
    www.grumpyolddba.co.uk
    http://sqlblogcasts.com/blogs/grumpyolddba/

  • RE: Maximum Memory per instance using Developer Edition SQL Server 200

    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]
    www.grumpyolddba.co.uk
    http://sqlblogcasts.com/blogs/grumpyolddba/

  • RE: Backing up Primary of Log Shipping Pair

    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/

  • RE: Disk sizes for SQL

    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/

  • RE: Views and Joins - How many is too many ???

    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]
    www.grumpyolddba.co.uk
    http://sqlblogcasts.com/blogs/grumpyolddba/

Viewing 15 posts - 2,161 through 2,175 (of 2,640 total)