Hello i have an expression build on RowNumber and i realized it counts hidden
rows (visibility = false)... this seems very odd to me.. is the way it was
designed'let me be more specific... i have a expression to change the row color... but
this isn't working because the report is incrementing RowNumber on hidden
rows... so the coloring seems random to the person reading the report. Is
this normal' Is there a work around?
"thejez" wrote:
> Hello i have an expression build on RowNumber and i realized it counts hidden
> rows (visibility = false)... this seems very odd to me.. is the way it was
> designed'|||check the visibility property before set row color.
"thejez" <thejez@.discussions.microsoft.com> escreveu na mensagem
news:29D9F5ED-DB50-4C48-9BD0-C62F1005EB97@.microsoft.com...
> let me be more specific... i have a expression to change the row color...
> but
> this isn't working because the report is incrementing RowNumber on hidden
> rows... so the coloring seems random to the person reading the report. Is
> this normal' Is there a work around?
> "thejez" wrote:
>> Hello i have an expression build on RowNumber and i realized it counts
>> hidden
>> rows (visibility = false)... this seems very odd to me.. is the way it
>> was
>> designed'sql
Showing posts with label hidden. Show all posts
Showing posts with label hidden. Show all posts
Friday, March 30, 2012
Monday, March 12, 2012
ROW ID
Is there a hidden column in a table that contains a
unique value for a particular row.
In Oracle there is a ROWID
In DB2 there is RRN
Is there an equivalent value in SQL 2000No. Not unless you create one. In SQL Server you can use the Identity
property to create a rowid...
Now if you're looking for the internal row locator - which non-clustered
indexes use to point to the associated data row - then there are two types
within SQL Server - the clustering key (if the table is clustered) and a
fixed rowid (if the table does not have a clustered index - therefore it's a
heap). The clustering key is easily accessibly. The fixed rowid as part of a
heap consists of an 8 byte key. 2 bytes for the file, 4 bytes for the page
id and 2 bytes for the row offset slot number.
OK - that might be too much information... :)
hth,
kt
--
Please reply only on the newsgroups! Include dml/ddl, when possible.Thanks
Kimberly L. Tripp
President, SYSolutions, Inc. www.SQLSkills.com
Principal Mentor, Solid Quality Learning www.SolidQualityLearning.com
"Roy Wennerod" <rwennerod@.hotmail.com> wrote in message
news:032801c37eda$70fec160$a401280a@.phx.gbl...
> Is there a hidden column in a table that contains a
> unique value for a particular row.
> In Oracle there is a ROWID
> In DB2 there is RRN
> Is there an equivalent value in SQL 2000|||"Roy Wennerod" <rwennerod@.hotmail.com> wrote in message
news:032801c37eda$70fec160$a401280a@.phx.gbl...
> Is there a hidden column in a table that contains a
> unique value for a particular row.
> In Oracle there is a ROWID
> In DB2 there is RRN
> Is there an equivalent value in SQL 2000
No there is not.
David|||"Hal Berenson" <haroldb@.truemountainconsulting.com> wrote in message
news:OeQq6h9fDHA.2172@.TK2MSFTNGP09.phx.gbl...
> The problem with exposing the internal pointers (whatever a product may
call
> them) is that it makes it impractical to move rows around in the database
> without breaking applications. As long as applications don't have access
to
> this physical pointer, you can do things like split a node in a clustered
> index, or perform an on-line reorganization, and never break an
application.
> That's why SQL Server, like other products that had their origins in the
> so-called second generation of rdbms products, does not expose them. The
> products that have their origins in the first generation, DB2, Rdb, and
> Oracle do expose these pointers.
> It is highly unlikely that SQL Server will ever expose the internal
> pointers. There were extensive discussions on this topic during
development
> of SQL Server 7.0, and the team (including those from Rdb who were fond of
> DBKEYs) concluded that exposing the internal pointers would be a mistake.
> To expose them and retain the online reorganization capabilities would
> require that the pointers be virtualized. And if you virtualize them then
> the implementation is no different then the user defining a new column
(with
> an index), or using an existing key column. So SQL Server's architecture
> relies on not exposing the physical pointers to the user.
Can't you have your cake and eat it too with the sql99 row_number()
function? :)
There's an army of users who are begging for this!:)|||Hal,
Thank you for the quick response...perhaps I should ask for what I am
trying to accomplish.
I have a table that has one nvarchar column. I need to display the
results in the order in which the data was entered into the database.
I was thinking I could use rowid or an equivalent. Any ideas.
Thanks in advance.
"Hal Berenson" <haroldb@.truemountainconsulting.com> wrote in message news:<OeQq6h9fDHA.2172@.TK2MSFTNGP09.phx.gbl>...
> The problem with exposing the internal pointers (whatever a product may call
> them) is that it makes it impractical to move rows around in the database
> without breaking applications. As long as applications don't have access to
> this physical pointer, you can do things like split a node in a clustered
> index, or perform an on-line reorganization, and never break an application.
> That's why SQL Server, like other products that had their origins in the
> so-called second generation of rdbms products, does not expose them. The
> products that have their origins in the first generation, DB2, Rdb, and
> Oracle do expose these pointers.
> It is highly unlikely that SQL Server will ever expose the internal
> pointers. There were extensive discussions on this topic during development
> of SQL Server 7.0, and the team (including those from Rdb who were fond of
> DBKEYs) concluded that exposing the internal pointers would be a mistake.
> To expose them and retain the online reorganization capabilities would
> require that the pointers be virtualized. And if you virtualize them then
> the implementation is no different then the user defining a new column (with
> an index), or using an existing key column. So SQL Server's architecture
> relies on not exposing the physical pointers to the user.
> --
> Hal Berenson, SQL Server MVP
> True Mountain Group LLC
>
> "bob" <bob@.hotmail.com> wrote in message
> news:03a701c37edc$800c23d0$a401280a@.phx.gbl...
> > there is a ROWID for each row in SQL Server too, just like
> > in Oracle but it is for only internal use, not exposed to
> > the users for querying. You can't see it or query it as an
> > implicit column. I don't know if MS is planning to expose
> > ROWID to the user querying in future versions of sql
> > server.
> >
> > You have to define a business key as a unique key or use
> > IDENTITY column to uniquely identify each row in a table.
> >
> > >--Original Message--
> > >Is there a hidden column in a table that contains a
> > >unique value for a particular row.
> > >
> > >In Oracle there is a ROWID
> > >
> > >In DB2 there is RRN
> > >
> > >Is there an equivalent value in SQL 2000
> > >.
> > >
unique value for a particular row.
In Oracle there is a ROWID
In DB2 there is RRN
Is there an equivalent value in SQL 2000No. Not unless you create one. In SQL Server you can use the Identity
property to create a rowid...
Now if you're looking for the internal row locator - which non-clustered
indexes use to point to the associated data row - then there are two types
within SQL Server - the clustering key (if the table is clustered) and a
fixed rowid (if the table does not have a clustered index - therefore it's a
heap). The clustering key is easily accessibly. The fixed rowid as part of a
heap consists of an 8 byte key. 2 bytes for the file, 4 bytes for the page
id and 2 bytes for the row offset slot number.
OK - that might be too much information... :)
hth,
kt
--
Please reply only on the newsgroups! Include dml/ddl, when possible.Thanks
Kimberly L. Tripp
President, SYSolutions, Inc. www.SQLSkills.com
Principal Mentor, Solid Quality Learning www.SolidQualityLearning.com
"Roy Wennerod" <rwennerod@.hotmail.com> wrote in message
news:032801c37eda$70fec160$a401280a@.phx.gbl...
> Is there a hidden column in a table that contains a
> unique value for a particular row.
> In Oracle there is a ROWID
> In DB2 there is RRN
> Is there an equivalent value in SQL 2000|||"Roy Wennerod" <rwennerod@.hotmail.com> wrote in message
news:032801c37eda$70fec160$a401280a@.phx.gbl...
> Is there a hidden column in a table that contains a
> unique value for a particular row.
> In Oracle there is a ROWID
> In DB2 there is RRN
> Is there an equivalent value in SQL 2000
No there is not.
David|||"Hal Berenson" <haroldb@.truemountainconsulting.com> wrote in message
news:OeQq6h9fDHA.2172@.TK2MSFTNGP09.phx.gbl...
> The problem with exposing the internal pointers (whatever a product may
call
> them) is that it makes it impractical to move rows around in the database
> without breaking applications. As long as applications don't have access
to
> this physical pointer, you can do things like split a node in a clustered
> index, or perform an on-line reorganization, and never break an
application.
> That's why SQL Server, like other products that had their origins in the
> so-called second generation of rdbms products, does not expose them. The
> products that have their origins in the first generation, DB2, Rdb, and
> Oracle do expose these pointers.
> It is highly unlikely that SQL Server will ever expose the internal
> pointers. There were extensive discussions on this topic during
development
> of SQL Server 7.0, and the team (including those from Rdb who were fond of
> DBKEYs) concluded that exposing the internal pointers would be a mistake.
> To expose them and retain the online reorganization capabilities would
> require that the pointers be virtualized. And if you virtualize them then
> the implementation is no different then the user defining a new column
(with
> an index), or using an existing key column. So SQL Server's architecture
> relies on not exposing the physical pointers to the user.
Can't you have your cake and eat it too with the sql99 row_number()
function? :)
There's an army of users who are begging for this!:)|||Hal,
Thank you for the quick response...perhaps I should ask for what I am
trying to accomplish.
I have a table that has one nvarchar column. I need to display the
results in the order in which the data was entered into the database.
I was thinking I could use rowid or an equivalent. Any ideas.
Thanks in advance.
"Hal Berenson" <haroldb@.truemountainconsulting.com> wrote in message news:<OeQq6h9fDHA.2172@.TK2MSFTNGP09.phx.gbl>...
> The problem with exposing the internal pointers (whatever a product may call
> them) is that it makes it impractical to move rows around in the database
> without breaking applications. As long as applications don't have access to
> this physical pointer, you can do things like split a node in a clustered
> index, or perform an on-line reorganization, and never break an application.
> That's why SQL Server, like other products that had their origins in the
> so-called second generation of rdbms products, does not expose them. The
> products that have their origins in the first generation, DB2, Rdb, and
> Oracle do expose these pointers.
> It is highly unlikely that SQL Server will ever expose the internal
> pointers. There were extensive discussions on this topic during development
> of SQL Server 7.0, and the team (including those from Rdb who were fond of
> DBKEYs) concluded that exposing the internal pointers would be a mistake.
> To expose them and retain the online reorganization capabilities would
> require that the pointers be virtualized. And if you virtualize them then
> the implementation is no different then the user defining a new column (with
> an index), or using an existing key column. So SQL Server's architecture
> relies on not exposing the physical pointers to the user.
> --
> Hal Berenson, SQL Server MVP
> True Mountain Group LLC
>
> "bob" <bob@.hotmail.com> wrote in message
> news:03a701c37edc$800c23d0$a401280a@.phx.gbl...
> > there is a ROWID for each row in SQL Server too, just like
> > in Oracle but it is for only internal use, not exposed to
> > the users for querying. You can't see it or query it as an
> > implicit column. I don't know if MS is planning to expose
> > ROWID to the user querying in future versions of sql
> > server.
> >
> > You have to define a business key as a unique key or use
> > IDENTITY column to uniquely identify each row in a table.
> >
> > >--Original Message--
> > >Is there a hidden column in a table that contains a
> > >unique value for a particular row.
> > >
> > >In Oracle there is a ROWID
> > >
> > >In DB2 there is RRN
> > >
> > >Is there an equivalent value in SQL 2000
> > >.
> > >
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