RE: Oracle to MSSQL conversion?

> -----Original Message-----
> From: ml-errors_at_fatcity.com [mailto:ml-errors_at_fatcity.com]On Behalf Of
> Wolfe Stephen S GS-11 6 MDSS/SGSI
> Sent: Thursday, July 31, 2003 22:05
> To: Multiple recipients of list ORACLE-L
> Subject: RE: Oracle to MSSQL conversion?
>
>
> <SNIP>
>
> > What would be the point of installing two SQL Server
> > "servers" on the same box? Similar to setting up 2 or more
> > instances on one host?
>
> No point that I can think of, I just know it can be done.

Timothy described one reason - differing sort orders, which also can imply differing code pages/character sets ... sometime a reason for having multiple Oracle instances as well.

Another reason for having multiple SQL Server instances is differing security models. SQL server can operate with "windows authentication" only, or combined windows authentication and traditional username/passwords managed by the server. For those with strict security needs, some people run a separate instance configured to allow mixed authentication for off-the-shelf apps that can't be changed. This would be analogous in Oracle to having one instance that only allowed global or external authentication, and another that allowed those as well as normal Oracle logins.

Ciao
Fuzzy
:-)

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