I've just been skimming these so forgive me if this is a dup.
Oracle's Database: Unbreakable Security. Can't Break It. Can't Break
In.
Oh wait that one is still being marketed. ;-)
- Brian
- Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk> wrote:
>
> How about -
> Oracle's decision to use an index for a
> query is determined by the percentage
> of rows from the table identified by the
> index.
>
> Hints are only suggestions and Oracle
> is allowed to ignore them
>
>
> Jonathan Lewis
> http://www.jlcomp.demon.co.uk
>
> Next Seminar - UK, April 3rd - 5th
> http://www.jlcomp.demon.co.uk/seminar.html
>
> Host to The Co-Operative Oracle Users' FAQ
> http://www.jlcomp.demon.co.uk/faq/ind_faq.html
>
> Author of:
> Practical Oracle 8i: Building Efficient Databases
>
>
> -----Original Message-----
> To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> Date: 13 March 2002 17:02
>
>
> |Yep, had that one... another of my fav's!
> |
> |Robert G. Freeman - Oracle8i OCP
> |Oracle DBA Technical Lead
> |CSX Midtier Database Administration
> |
> |The Cigarette Smoking Man: Anyone who can appease a man's conscience
> can
> |take his freedom away from him.
> |
> |
> |
> |-----Original Message-----
> |Sent: Wednesday, March 13, 2002 8:28 AM
> |To: Multiple recipients of list ORACLE-L
> |
> |
> |And the time honoured favourite...
> |
> |"All performance problems can be resolved by
> |modification of init.ora parameters, in particular,
> |any parameter that starts with an underscore"
> |
> | --- Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
> |wrote: >
> |> My next to favourite legends.
> |>
> |> Small tables don't need to be indexed
> |>
> |> Small tables are anything 4 blocks or less
> |>
> |> Oracle copies the entire row into the rollback
> |> segment when updating a single column.
> |>
> |> Oracle copies the entire block into the rollback
> |> segment when updating a row.
> |>
> |> Oracle can only use 5 indexes in a query
> |> (though I haven't heard that one much
> |> recently)
> |>
> |> Setting tablespace default pctincrease to 1
> |> reduces
> |> fragmentation problems.
> |> (but that's going out of fashion too)
> |>
> |> But I guess you, Jeremiah and Rachel have
> |> already got those covered.
> |>
> |>
> |>
> |> Jonathan Lewis
> |> http://www.jlcomp.demon.co.uk
> |>
> |> Next Seminar - UK, April 3rd - 5th
> |> http://www.jlcomp.demon.co.uk/seminar.html
> |>
> |> Host to The Co-Operative Oracle Users' FAQ
> |> http://www.jlcomp.demon.co.uk/faq/ind_faq.html
> |>
> |> Author of:
> |> Practical Oracle 8i: Building Efficient Databases
> |>
> |>
> |> -----Original Message-----
> |> To: Multiple recipients of list ORACLE-L
> |> <ORACLE-L_at_fatcity.com>
> |> Date: 12 March 2002 22:54
> |>
> |>
> |> |Everyone, some great ideas....
> |> |
> |> |RF
> |> |
> |> |Robert G. Freeman - Oracle8i OCP
> |> |Oracle DBA Technical Lead
> |> |CSX Midtier Database Administration
> |>
> |>
> |> --
> |> Please see the official ORACLE-L FAQ:
> |> http://www.orafaq.com
> |> --
> |> Author: Jonathan Lewis
> |> INET: jonathan_at_jlcomp.demon.co.uk
> |>
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> |=====
> |Connor McDonald
> |http://www.oracledba.co.uk (mirrored at
> |http://www.oradba.freeserve.co.uk)
> |
> |"Some days you're the pigeon, some days you're the statue"
> |
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> --
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> --
> Author: Jonathan Lewis
> INET: jonathan_at_jlcomp.demon.co.uk
>
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Received on Wed Mar 13 2002 - 12:33:35 CST
