RE: oracle v SS
- From: Noveljic Nenad <nenad.noveljic@xxxxxxxxxxxx>
- To: "gogala.mladen@xxxxxxxxx" <gogala.mladen@xxxxxxxxx>, "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 7 Nov 2019 21:41:02 +0000
Both products are high-end - you can't go wrong with either of them. When
making the decision I'd consider not only the cost, but also what know-how you
already have in-house, not only about databases, but OS (including
virtualization) as well. In fact, that might be the most important criteria.
Here are some technical points, which might relevant:
- Readers-blocking-writers mentioned by Mladen is just an awkward default that
can be changed.
- Another suspicious default in SQL Server is "clustered index" (as opposed to
heap table) as a data storage structure, which is similar to index organized
table (IOT) in Oracle, just the IOTs performs much better because of the
- PL/SQL is much more sophisticated than TSQL, which might be relevant if you
plan to store your application logic in the database. Actually, TSQL doesn't
scale well when the same code is concurrently executed by multiple sessions.
- There are also some other scalability issues related to built-in SQL Server
- SQL Server integration with Active Directory is seamless. In contrast, Oracle
integration is pain in the neck. Consequently, the user administration is much
easier in SQL Server, which might be relevant if you let lot of people directly
connect to the database.
- Oracle/Linux troubleshooting/performance tuning features are superior! SQL
Server is slowly catching up, but it's still way beyond Oracle.
- I discovered a couple of cases where SQL Server optimizer works better.
However, it's nothing that couldn't be achieved by rewriting the queries.
- SQL Server comes with BI components (Reporting & Analysis Server, SSIS).
I elaborated on many points above here:
Twitter handle: @NenadNoveljic
From: oracle-l-bounce@xxxxxxxxxxxxx <oracle-l-bounce@xxxxxxxxxxxxx> On Behalf
Of Mladen Gogala
Sent: Donnerstag, 7. November 2019 21:43
Subject: Re: oracle v SS
On 11/7/19 3:13 PM, Orlando L wrote:
Trying to decide between oracle and sql server for a query/warehousing
type database. Can anyone share their input or point to a paper for
the current versions. Thanks
SQL Server enterprise edition comes with what Oracle calls "In-Memory option"
and partitioning, no further licensing required. SQL Server doesn't have
multi-versioning which makes things simpler for mostly query database. On the
flip side, readers block writers and vice versa, which means that loading
usually means downtime. SS has something called "always on availability
groups", which allows you to maintain shared nothing "cluster" with several
identical database copies, which can be queried in parallel. SQL Server
supports bitmap indexes and star
(snowflake) schema queries. SQL Server EE is significantly cheaper than
Oracle. I would advise going with SQL Server.
Tel: (347) 321-1217
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