Oracle Sequence/Link 2 MS SQL SERVER 2005

2. hwo do i create a link to another ms-sql database

1. is there a statement in ms sql, what creates a sequence? cant find
anything in web :-(
-oracle: CREATE SEQUENCE XYZ INCREMENT BY 1 START WITH 1 NOCYCLE
CACHE 20;
-ms sql: ???

>
From one MS SQL to another MS SQL server? Or database?
>
>
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hi,
>
1. is there a statement in ms sql, what creates a sequence? cant find
anything in web :-(
-oracle: CREATE SEQUENCE XYZ INCREMENT BY 1 START WITH 1 NOCYCLE
CACHE 20;
-ms sql: ???
>
2. hwo do i create a link to another ms-sql database
>
thx a lot need help, urgend :-)

the link is between two ms-sql servers

>
The only other databases that have abilities similar to those of
an Oracle SEQUENCE are DB2 and Informix (only the most recent release).

an Oracle SEQUENCE are DB2 and Informix (only the most recent release).

ruediger.michels@feltengmbh.de wrote:>
The only other databases that have abilities similar to those of
an Oracle SEQUENCE are DB2 and Informix (only the most recent release).
--
Daniel A. Morgan
University of Washington
damorgan@x.washington.edu
(replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org

>
What about ROWNUMBER() in SQL Server 2005 and PARTITION??

Tony Rogerson wrote:>
Totally different capabilities.
>
A sequence is not tied to a table: It is an independent object.
>
One can use a sequence to number count by any increment positive or
negative, assign the values to one table or to multiple tables, and
to repeatedly cycle through a fixed set of numbers (min to max and
back to min), and much more.
>
Maybe in SQL Server 2009?
--
Daniel A. Morgan
University of Washington
damorgan@x.washington.edu
(replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org

Oh - you mean SQL Server 2007? Remember Mark Souza committed themselves
to a 2 year release cycle....

If I sat down and worked it out then what we have now in terms of CTE's,
table structures, triggers I could do it - sadly, no time [at mo].

Itzik Ben-Gan has come up with an idea where you us an table with a single
identity column. You have a stored procedure that either starts a
transaction, or if a transaction is already in progress, it issues a
SAVE TRANSACTION. The procedure then inserts a row into the table and
retrieves the identity value with scope_identity(). Finally it rolls
back the transaction, either entirely or to the savepoint. Thus, table
is always empty, but it still produces a growing sequence. Since the table
is locked for only short duration, the concurrency is good.
>
A fairly convoluted solution, and likely to be less efficient than what
they have on Oracle.
>

Tony Rogerson (tonyrogerson@sqlserverfaq.com) writes:>
Mark Souza? You are probably thinking of Paul Flessner.
>>
Itzik Ben-Gan has come up with an idea where you us an table with a single
identity column. You have a stored procedure that either starts a
transaction, or if a transaction is already in progress, it issues a
SAVE TRANSACTION. The procedure then inserts a row into the table and
retrieves the identity value with scope_identity(). Finally it rolls
back the transaction, either entirely or to the savepoint. Thus, table
is always empty, but it still produces a growing sequence. Since the table
is locked for only short duration, the concurrency is good.
>
A fairly convoluted solution, and likely to be less efficient than what
they have on Oracle.
>
Then again, in many cases a plain IDENTITY column will do.
>
>
--
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se
>
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