Row sequence number

[evandroc]

Hello all,


I´m currently using a SQL Serve 2K. Would like to do a select
which returns the row number - this should not be physically stored in
the database. So for example, I would like to do a query against the
CUSTOMER table and receive:

* rowID || name
1 Evander
2 Ron
3 Scoth
4 Jane

I don´t want to store the ID, because if I change the order by
clause, the sequence may modifiy, and, for another example, having the
same set of data, I would receive:

* rowID || name
1 Scoth
2 Ron
3 Jane
4 Evander

could someone help me ?

best regards,
Evandro

[--CELKO--]

Re: Row sequence number

Let's get back to the basics of an RDBMS. Rows are not records; fields
are not columns; tables are not files; there is no sequential access or
ordering in an RDBMS, so "first", "next" and "last" are totally
meaningless. If you want an ordering, then you need to have a column
that defines that ordering. You must use an ORDER BY clause on a
cursor or in an OVER() clause.
[color=blue][color=green]
>> could someone help me ? <<[/color][/color]

You can help yourself by doing about one week's worth of reading on
RDBMS. You are making a fool of yourself by not knowing the basics.

[Sergey]

Re: Row sequence number

SQL 2000 does not have this pseudo-column. It is introduced in 2005.
The only way I know how to way around it is to dump your query into
temp. table that has anextra column (let's call it rowID ) which is an
auto-increment.

[Erland Sommarskog]

Re: Row sequence number

Sergey (afanas01@gmail .com) writes:[color=blue]
> SQL 2000 does not have this pseudo-column. It is introduced in 2005.
> The only way I know how to way around it is to dump your query into
> temp. table that has anextra column (let's call it rowID ) which is an
> auto-increment.[/color]

Neither does SQL 2005 have any pseudo-column. row_number() is a function,
and you can set it up so that it restarts on some defined partition.



--
Erland Sommarskog, SQL Server MVP, esquel@sommarsk og.se

Books Online for SQL Server 2005 at

http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx

Books Online for SQL Server 2000 at

http://www.microsoft.com/sql/prodinfo/previousversions/books.mspx