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From:Van Date:August 16 2002 6:05pm
Subject:Re: MySQL vs. Oracle (not speed)
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Mary:

You can index fields containing NULL values in MyISAM tables, but not ISAM
tables.  If you're using ISAM tables, this might explain your performance
issues.  There are also other more featured table types, but MyISAM is probably
going to yield the most performance in your application.

Van
-- 
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Linux rocks!!!   http://www.dedserius.com/
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Mary Stickney wrote:
> 
> looks to me like I can only make indexes on fields that are not null...
> this one is not , not null
> 
> -----Original Message-----
> From: Jocelyn Fournier [mailto:joc@stripped]
> Sent: Friday, August 16, 2002 11:34 AM
> To: Mary Stickney; Mark Matthews; mysql@stripped
> Subject: Re: MySQL vs. Oracle (not speed)
> 
> Hi,
> 
> I see you do an order by on AdminHierarchy.WritingAgentSlot but this column
> is not indexed.
> Please tell me if an index on this column improve the speed of the query a
> bit.
> 
> Regards,
>   Jocelyn
Thread
MySQL vs. Oracle (not speed)Elizabeth Bogner16 Aug
  • Re: MySQL vs. Oracle (not speed)Matthew Walker16 Aug
  • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
    • RE: MySQL vs. Oracle (not speed)Kent Vilhelmsen16 Aug
    • RE: MySQL vs. Oracle (not speed)Francisco16 Aug
      • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
        • Re: MySQL vs. Oracle (not speed)Mark Matthews16 Aug
          • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
            • Re: MySQL vs. Oracle (not speed)Mark Matthews16 Aug
              • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
              • Re: MySQL vs. Oracle (not speed)Serge Paquin16 Aug
                • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
                  • Re: MySQL vs. Oracle (not speed)Mark Matthews16 Aug
                • RE: MySQL vs. Oracle (not speed)Aron Pilhofer17 Aug
          • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
            • Re: MySQL vs. Oracle (not speed)Jocelyn Fournier16 Aug
              • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
                • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
                  • Re: MySQL vs. Oracle (not speed)Jocelyn Fournier16 Aug
                    • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
                      • Re: MySQL vs. Oracle (not speed)Jocelyn Fournier16 Aug
                      • Re: MySQL vs. Oracle (not speed)Van16 Aug
                        • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
                      • Re: MySQL vs. Oracle (not speed)Dan Nelson16 Aug
                        • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
                      • RE: MySQL vs. Oracle (not speed)Aron Pilhofer17 Aug
        • RE: MySQL vs. Oracle (not speed)Francisco16 Aug
          • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
            • Re: MySQL vs. Oracle (not speed)Jocelyn Fournier16 Aug
              • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
                • Re: MySQL vs. Oracle (not speed)Jocelyn Fournier16 Aug
                  • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
                    • Re: improving slow query (was: MySQL vs. Oracle (not speed))Benjamin Pflugmann16 Aug
                • RE: MySQL vs. Oracle (not speed)Aron Pilhofer17 Aug
            • RE: MySQL vs. Oracle (not speed) - not part of the rant, but real informationAdam Nelson16 Aug
              • Re: MySQL vs. Oracle (not speed) - not part of the rant, but real informationDavid Lloyd17 Aug
        • Re: MySQL vs. Oracle (not speed)Tom Gao16 Aug
          • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
        • RE: MySQL vs. Oracle (not speed)Aron Pilhofer16 Aug
          • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
            • RE: MySQL vs. Oracle (not speed)Aron Pilhofer16 Aug
              • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
            • Re: MySQL vs. Oracle (not speed)Mark Matthews16 Aug
          • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
        • RE: MySQL vs. Oracle (not speed)Aron Pilhofer16 Aug
        • RE: MySQL vs. Oracle (not speed)Aron Pilhofer16 Aug
    • Re: MySQL vs. Oracle (not speed)Gelu Gogancea16 Aug
      • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
        • Re: MySQL vs. Oracle (not speed)Gelu Gogancea16 Aug
          • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
  • Re: MySQL vs. Oracle (not speed)Anderson Pereira Ataides16 Aug
RE: MySQL vs. Oracle (not speed)Art Fore16 Aug
RE: MySQL vs. Oracle (not speed)John Griffin16 Aug
  • Re: MySQL vs. Oracle (not speed)Elizabeth Bogner17 Aug
Re: MySQL vs. Oracle (not speed)Heikki Tuuri16 Aug
RE: MySQL vs. Oracle (not speed)Alec.Cawley16 Aug
RE: MySQL vs. Oracle (not speed)John Griffin16 Aug
  • RE: MySQL vs. Oracle (not speed)Mary Stickney16 Aug
Re: MySQL vs. Oracle (not speed)Jocelyn Fournier16 Aug
Re: MySQL vs. Oracle (not speed)Heikki Tuuri16 Aug
RE: MySQL vs. Oracle (not speed)Kenneth Hylton16 Aug
Re: MySQL vs. Oracle (not speed)Jocelyn Fournier16 Aug
  • RE: MySQL vs. Oracle (not speed)Mary Stickney17 Aug
RE: MySQL vs. Oracle (not speed)Steve Orr16 Aug
RE: MySQL vs. Oracle (not speed)Heikki Tuuri16 Aug