Great site for comparing databases (or anything else)

Em 27/10/2012 19:18, Mike Christensen escreveu:

Just came across this one:

http://hammerprinciple.com/databases/items/mysql/postgresql

mySQL is great for embedding in applications though? Have they not
read Oracle's license?

Mike

Sorry to say, this site is full of holes. The problem is explained in
section "I am familiar with this database".
How would people who don't know something be allowed to emit a judgment
about the compared products?

Edson

On 10/27/2012 5:18 PM, Mike Christensen wrote:

Just came across this one:

http://hammerprinciple.com/databases/items/mysql/postgresql

mySQL is great for embedding in applications though? Have they not
read Oracle's license?

Does it say anywhere on that site if the people surveyed know both
databases well enough to judge these questions? I can't find anything
about that, and the site also ranks gin and martial arts, so I'm not
sure sure it has much value.

-- Stephen

It seems to be based on the honor system. When you click "Rank", it asks
you what databases you're familiar with. Then you can stack rank those
databases across various questions. It's possible people could lie and say
they know about mySQL and Postgres when in reality they don't, but
hopefully the overall results would be accurate. Actually one of the
reasons I posted it here was because I was hoping more database experts
could weigh in with their opinions..

Mike

On Sat, Oct 27, 2012 at 4:00 PM, Stephen Cook <sclists@gmail.com> wrote:

On 28/10/12 12:00, Stephen Cook wrote:

On 10/27/2012 5:18 PM, Mike Christensen wrote:

Just came across this one:

http://hammerprinciple.com/databases/items/mysql/postgresql

mySQL is great for embedding in applications though? Have they not
read Oracle's license?

Does it say anywhere on that site if the people surveyed know both
databases well enough to judge these questions? I can't find anything
about that, and the site also ranks gin and martial arts, so I'm not
sure sure it has much value.

-- Stephen

Probably a very useful site to note people's 'perceptions' - as
perceptions tend to influence peoples decisions, especially when people
feel overwhelmed by technical decision making.

Also note that for features that are obviously complicated or advanced,
Postgres tends to a lot better than MySQL.

For the above reasons, I think it may be of value to the pg community to
look at it in order to consider what are marketing messages should be.

Cheers,
Gavin

Søndag 28. oktober 2012 01.17.45 skrev Gavin Flower :

Also note that for features that are obviously complicated or advanced,
Postgres tends to a lot better than MySQL.

It's like comparing BASIC to C. BASIC has a low threshold, but you will very
quickly bump your head against the wall.

MySQL, the BASIC of db engines?

regards, Leif

On 28/10/12 12:29, Leif Biberg Kristensen wrote:

Søndag 28. oktober 2012 01.17.45 skrev Gavin Flower :

Also note that for features that are obviously complicated or advanced,
Postgres tends to a lot better than MySQL.

It's like comparing BASIC to C. BASIC has a low threshold, but you will very
quickly bump your head against the wall.

MySQL, the BASIC of db engines?

regards, Leif

I have used both MySQL & Postgres: I feel a lot more comfortable with
Postgres, as it seems to be both simpler and more sophisticated. MySQL
has several DB engines for different purposes, Postgres has just one
that appears to be more capable than the collection of features from all
the MySQL DB engines combined. In the last 12 years I've gone looking
for comparisons between them 3 times; and each time, Postgres comes out
better overall.

Cheers,
Gavin

Em 28/10/2012 01:35, Gavin Flower escreveu:

On 28/10/12 12:29, Leif Biberg Kristensen wrote:

Søndag 28. oktober 2012 01.17.45 skrev Gavin Flower :

Also note that for features that are obviously complicated or advanced,
Postgres tends to a lot better than MySQL.

It's like comparing BASIC to C. BASIC has a low threshold, but you
will very
quickly bump your head against the wall.

MySQL, the BASIC of db engines?

regards, Leif

I have used both MySQL & Postgres: I feel a lot more comfortable with
Postgres, as it seems to be both simpler and more sophisticated.
MySQL has several DB engines for different purposes, Postgres has just
one that appears to be more capable than the collection of features
from all the MySQL DB engines combined. In the last 12 years I've
gone looking for comparisons between them 3 times; and each time,
Postgres comes out better overall.

And I must add: even using InnoDB, MySQL allows violation of relational
integrity (just put it under heavy transactional load).
I've suffered this pain in the past even with MySQL 5.1. This problem
does not happens with PostgreSQL.
The only occasion I had duplications in PostgreSQL was during a heavy
data load. At that time, I used RSync to copy data to another server
with the command:

rsync -azv /var/lib/pgsql/9.1/data root@127.0.0.1:/var/lib/pgsql/9.1/

Do you see my mistake above? Yes, this causes duplicate records (and
after some time, complete database corruption in PostgreSQL).
Is just db admin stupidity (I can tell, because I was caused by my
self). Would be nice if we can shield PostgreSQL against my personal
silliness.

Edson

On 28/10/12 16:52, Edson Richter wrote:

Em 28/10/2012 01:35, Gavin Flower escreveu:

On 28/10/12 12:29, Leif Biberg Kristensen wrote:

Søndag 28. oktober 2012 01.17.45 skrev Gavin Flower :

Also note that for features that are obviously complicated or
advanced,
Postgres tends to a lot better than MySQL.

It's like comparing BASIC to C. BASIC has a low threshold, but you
will very
quickly bump your head against the wall.

MySQL, the BASIC of db engines?

regards, Leif

I have used both MySQL & Postgres: I feel a lot more comfortable with
Postgres, as it seems to be both simpler and more sophisticated.
MySQL has several DB engines for different purposes, Postgres has
just one that appears to be more capable than the collection of
features from all the MySQL DB engines combined. In the last 12
years I've gone looking for comparisons between them 3 times; and
each time, Postgres comes out better overall.

And I must add: even using InnoDB, MySQL allows violation of
relational integrity (just put it under heavy transactional load).
I've suffered this pain in the past even with MySQL 5.1. This problem
does not happens with PostgreSQL.
The only occasion I had duplications in PostgreSQL was during a heavy
data load. At that time, I used RSync to copy data to another server
with the command:

rsync -azv /var/lib/pgsql/9.1/data root@127.0.0.1:/var/lib/pgsql/9.1/

Do you see my mistake above? Yes, this causes duplicate records (and
after some time, complete database corruption in PostgreSQL).
Is just db admin stupidity (I can tell, because I was caused by my
self). Would be nice if we can shield PostgreSQL against my personal
silliness.

Edson

Cheers,
Gavin

My tools are not good enough to cope with my own ineptitude - give me
better tools! :-)

It seems to be based on the honor system. When you click "Rank", it
asks you what databases you're familiar with. Then you can stack rank
those databases across various questions. It's possible people could
lie and say they know about mySQL and Postgres when in reality they
don't, but hopefully the overall results would be accurate. Actually
one of the reasons I posted it here was because I was hoping more
database experts could weigh in with their opinions..

Mike

On Sat, Oct 27, 2012 at 4:00 PM, Stephen Cook <sclists@gmail.com
<mailto:sclists@gmail.com>> wrote:

On 10/27/2012 5:18 PM, Mike Christensen wrote:

Just came across this one:

http://hammerprinciple.com/__databases/items/mysql/__postgresql
<http://hammerprinciple.com/databases/items/mysql/postgresql&gt;

mySQL is great for embedding in applications though? Have they
not read Oracle's license?

Does it say anywhere on that site if the people surveyed know both
databases well enough to judge these questions? I can't find
anything about that, and the site also ranks gin and martial arts,
so I'm not sure sure it has much value.

I saw lots of discussion about the results shown in the website. I would
say that it is always good to have something to start with. And I vote
for it.
--
Emi

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