Re: Database or store to handle 30 Mb/sec and 40,000 inserts/sec



Thanks Mark, yes...

This gives statement level snapshop...

ALTER DATABASE Concurrency SET READ_COMMITTED_SNAPSHOT ON

and/or

This gives transaction level snapshop...

ALTER DATABASE Concurrency SET ALLOW_SNAPSHOT_ISOLATION ON

The later is the transaction versioning that Oracle offers; the former just
gives the last committed value and doesn't block the writer; both can be in
force if necessary.

--
Tony Rogerson
SQL Server MVP
http://sqlserverfaq.com - free video tutorials


"Mark Townsend" <markbtownsend@xxxxxxxxxxx> wrote in message
news:43EF9623.3040300@xxxxxxxxxxxxxx
Tony Rogerson wrote:
Just for fun I will comment...


Enough said. Sqlserver will *never* be a scalabale product as all
versions of Windows are non-scalable O/S-es
And when will Sqlserver stop having readers block writers?


In the current release you can have all the standard transaction
isolations and that includes writers blocking readers - funnily enough I
did a webcast demonstrating and explaining the feature 2 weeks ago.

Typo perhaps - don't you mean "and that includes writers _not_ blocking
readers" (aka read_committed_snapshot ?).


.