Sql7 And Oracle8 Comparison

There have been a number of messages with reference to
performance comparisons of one sort or another.
I decided to do a controlled, fair test of these two products
with respect to their data warehousing peformance.
I created a schema with 3 dimension tables ( 300,10000,1000 rows)
and 1 fact table ( 1000000 rows )
I designed 3 queries.
I decided to test two things
1) bulk load speed
2) query response times for the 3 queries
I used identical hardware ( HP Vectra P200 48M Ram + 2.1G
Quantum ). Software was RedHat 5.2 + Oracle8.0.5.1 and Nt 4.0
Sp4 + SQl7 ( 120 Day Tril...). Both databases were configured
similarly ( fixed 16M Memory ).
results
Operation Elpased time (s)
Sql7 Oracle8
bulk Load 720 660
Query1
Query2
null

Mark Kirkwood (guest) wrote:
: There have been a number of messages with reference to
: performance comparisons of one sort or another.
: I decided to do a controlled, fair test of these two products
: with respect to their data warehousing peformance.
: I created a schema with 3 dimension tables ( 300,10000,1000
rows)
: and 1 fact table ( 1000000 rows )
: I designed 3 queries.
: I decided to test two things
: 1) bulk load speed
: 2) query response times for the 3 queries
: I used identical hardware ( HP Vectra P200 48M Ram + 2.1G
: Quantum ). Software was RedHat 5.2 + Oracle8.0.5.1 and Nt 4.0
: Sp4 + SQl7 ( 120 Day Tril...). Both databases were configured
: similarly ( fixed 16M Memory ).
: results
: Operation Elpased time (s)
: Sql7 Oracle8
: bulk Load 720 660
: Query1 3 2
: Query2 1 1 ( watch that tab key)
Query3 4 3
The bulk load was performed using Dts (sql7) and sqlldr (Oracle8)
To get to the query execution times indexes were created using
output from Microsofts "Query Analyzer" product ( really good
product by the way and comes with Sql7... ). The queries were
run from Query Analyzer(sql7) and Sqlplus (Oracle8)
So what to conclude ?
Oracle8 on Linux is slightly quicker in general - not
sigificantly so however.
During testing when the "optimal" set of indexes were not there,
it was discovered that Oracle8 was much better at doing joins
involving large datasets. However the Query Analyzer made it so
easy to improve the situation that the 2 products even out
here...
Therefore I would say that they are both good databases with
respect to data warehouse purposes.
Notes etc :
What were the queries ?
For anyone who is interested I will send data on the schema and
queries ( mail me ).
What did I mean by fair ?
I had not decided which database / os was going to win before I
started.
I used only features common to both databases. Therefore I did
not use partitioning (oracle8) or clustered indexes ( sql7).I
was liasing with a Sql7 developer ( I'm an oracle boy myself )
concerning setting up Sql7.
I hope some people find this interesting
Cheers
Mark
null

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>
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[email protected]

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Jesper Bech Petersen (guest) wrote:
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