Relative paths

We have a growing issue where we have a relative dtsconfig file (which stores the absolute base path of the ETL packages). This way we can keep the ETL projects failry portable - only having to modify one value in the dtsconfig file. The master package that defines the dtsconfig location (which is config/Default.dtsconfig) usually interpretates this location to be relative the project. The problem is that every now and again when you open this package in .NETStudio, the path is interpreted differently and causes: config/Default.dtsconfig to state invalid path. But when we delete the variable (which defines the dtsconfig path), save/close and open/recreate it works again. This may or may not be supported MS method, but I was curious to know why this gets messed up. Is there somehwere in the .NET framework that defines what "/" is relatively under?

For example: Our absolute config path is "D:\Program Files\Microsoft SQL Server\90\DTS\Packages\ETLProject\ETLBase\config\Default.dtsconfig" but using: "config/Default.dtsconfig" for xml file value works. However, sometimes we will get an error stating that this file cannot be found, and when we just try to delete (without saving and closing) and immediatelly try to put "config/Default.dtsconfig" again and hit next, we get an error and the path is now:

'D:\Program Files\Microsoft SQL Server\90\DTS\Packages\DEVDataExchange\ETLBase\config\config\Default.dtsconfig'.

Ideas?

I got the same problem. I'm creating a set of packages that i would like to distribute to my customers. A lot of them don't like the idea of me creating environment variables on their server. Therefore I want to be able to use something like .\filename.dtsconfig as the path. This has worked fine for me, but from one moment to another it stopt working ... and I don't know why. I just get an error when I'm loading the ssis package that the .dtsconfig file can't be found. Strange thing is that I haven't changed a thing.

Hope someone can help me out here. I really would like to use relative paths for my configuration file.

Thanks,

Matthijs

|||Nope. You must use absolute paths for reliability and consistency. Create the environment variable and be done with it. Mandate it!|||

Relative paths cannot be used in SSIS. Many people complain about that but there is a rationale for it. If the package is stored in SQL Server, what would teh path be relative to?

That's why absolute paths are used.

-Jamie

Relative paths

We have a growing issue where we have a relative dtsconfig file (which stores the absolute base path of the ETL packages). This way we can keep the ETL projects failry portable - only having to modify one value in the dtsconfig file. The master package that defines the dtsconfig location (which is config/Default.dtsconfig) usually interpretates this location to be relative the project. The problem is that every now and again when you open this package in .NETStudio, the path is interpreted differently and causes: config/Default.dtsconfig to state invalid path. But when we delete the variable (which defines the dtsconfig path), save/close and open/recreate it works again. This may or may not be supported MS method, but I was curious to know why this gets messed up. Is there somehwere in the .NET framework that defines what "/" is relatively under?

For example: Our absolute config path is "D:\Program Files\Microsoft SQL Server\90\DTS\Packages\ETLProject\ETLBase\config\Default.dtsconfig" but using: "config/Default.dtsconfig" for xml file value works. However, sometimes we will get an error stating that this file cannot be found, and when we just try to delete (without saving and closing) and immediatelly try to put "config/Default.dtsconfig" again and hit next, we get an error and the path is now:

'D:\Program Files\Microsoft SQL Server\90\DTS\Packages\DEVDataExchange\ETLBase\config\config\Default.dtsconfig'.

Ideas?

I got the same problem. I'm creating a set of packages that i would like to distribute to my customers. A lot of them don't like the idea of me creating environment variables on their server. Therefore I want to be able to use something like .\filename.dtsconfig as the path. This has worked fine for me, but from one moment to another it stopt working ... and I don't know why. I just get an error when I'm loading the ssis package that the .dtsconfig file can't be found. Strange thing is that I haven't changed a thing.

Hope someone can help me out here. I really would like to use relative paths for my configuration file.

Thanks,

Matthijs

|||Nope. You must use absolute paths for reliability and consistency. Create the environment variable and be done with it. Mandate it!|||

Relative paths cannot be used in SSIS. Many people complain about that but there is a rationale for it. If the package is stored in SQL Server, what would teh path be relative to?

That's why absolute paths are used.

-Jamie

Related Tables in Model Files

I want to create a model file that relates two tables. However, these tables do not have a foreign key relationship in the database. Is there any way to do this? I'm hoping to programmatically generate the XML for the smdl file. Here's the XML that is generated when there is a foreign key:

<Role ID="G958db767-3d65-4445-9ccb-5f76c41720fb">

<Name>Linked Problem</Name>

<RelatedRoleID>Gf5496c9e-13b8-4c66-965d-c3a3c9a78cc8</RelatedRoleID>

<Cardinality>OptionalOne</Cardinality>

<Relation Name="dbo_Incident_FK_Incident_Problem" RelationEnd="Target" />

</Role>

Is there any way to change this to XML reference a table and join fields instead of a FK?

The Role in the report model must be bound to a Relation in the Data Source View (DSV), but the Relation does not need to have any corresponding FK constraint in the underlying database. The solution is to define the Relation you want in the DSV section of the file, then create the Role pair and bind them to it.

|||Hi Bob,

To form the relation, I assume you mean that I make a key/keyref pair in the schema. Is this correct?

As for the role pair, I don't understand exactly where these items go. I looked at the ones generated when there was a FK in the database. It looks like one goes at the end of the first table's attribute (field) list and the second one replaces the attribute in the second table. Is this correct?

If you have any XML samples I would really appreciate it. I tried everything I could think of today and got nothing but errors when I tried to upload the model files.

Thanks!|||Never mind. I've since discovered that you can set up a foreign key with the "NO CHECK" option. I think I can do that and save myself from having to programmatically generate SMDL. Thanks!

Reinitialize subscription thru DOS

Hey All,
Is there a way thru which I can reinitialize a subscription using a
batch/ script file. Or force the generation of a snapshot and force
apply the snapshot using a batch/ script file.
Thanks a lot for your help.
Jatin
*** Sent via Developersdex http://www.codecomments.com ***
Jatin,
you need to call the relevant sp_reinit... stored procedure (eg
sp_reinitsubscription), followed by running the snapshot and
distribution/merge agents (sp_start_job). You could have all these as a TSQL
batch file and use OSQL to run the batch file if you need to do it through
DOS (also the OSQL commands could be in a DOS batch file).
Cheers,
Paul Ibison SQL Server MVP, www.replicationanswers.com
(recommended sql server 2000 replication book:
http://www.nwsu.com/0974973602p.html)
|||Thanks Paul...that is exactly what I ended up doing.
*** Sent via Developersdex http://www.codecomments.com ***

Re-indexing required?

Hi, I'm developing a database driven application that, besides everything
else, it keeps a log file of all the actions a user has taken during his use
of the app.
This log file is stored in a database table that has a primary key of type
"bigint" that auto increments (1, 1).
If ~100 to ~500 actions (insertions, deletions) are made to this table per
day, how long before I need to re-index the table? Do I need to re-index it
at all?
Thanks in advance,
Peter
pnp,
When are your maintenance windows? Do you have ANY maintenance windows? If you get a chance it would be good to recreate your indexes using the CREATE INDEX statement and the DROP_EXISTING clause - however test this for performance against DBCC DBREINDEX.
Remember that these are OFFLINE operations and will lock tables.
If you don't have a maintenance window, then measure your defragmentation using DBCC SHOWCONTIG. Based on a value acceptable to you, you can rebuild your index with DBCC INDEXDEFRAG - this is an ONLINE operation and will not lock tables, however it is not
as thorough as the other methods.
My advice would be to run DBCC SHOWCONTIG first before doing a rebuild, and then decide when to do it based on your maintenance windows. From the activity you describe it sounds like you may need to monitor it daily with DBCC SHOWCONTIG.
Mark Allison, SQL Server MVP
http://www.markallison.co.uk
|||Hi,
Execute the below command with in the database to identify the
fragmentation,
DBCC SHOWCONTIG ('table_name') WITH FAST
DBCC SHOWCONTIG determines whether the table is heavily fragmented. Table
fragmentation occurs through the process of data modifications (INSERT,
UPDATE, and DELETE statements) made against the table. This
will cause additional page reads results in slow performance.
How to over come the Fragmentation:
1. Drop and re-create a clustered index.
2. DBCC INDEXDEFRAG (Refer books online)
Have a look into DBCC SHOWCONTIG in books online for more information.
Thanks
Hari
MCDBA
"pnp" <pnp.at.softlab.ece.ntua.gr> wrote in message
news:eoKusYJGEHA.3880@.TK2MSFTNGP10.phx.gbl...
> Hi, I'm developing a database driven application that, besides everything
> else, it keeps a log file of all the actions a user has taken during his
use
> of the app.
> This log file is stored in a database table that has a primary key of type
> "bigint" that auto increments (1, 1).
> If ~100 to ~500 actions (insertions, deletions) are made to this table per
> day, how long before I need to re-index the table? Do I need to re-index
it
> at all?
> Thanks in advance,
> Peter
>
|||On a slighly different thread.
I'd be curious to know how SQL Server indexes deal with incremental keys.
Other RDBMS implemented hash indexes as btrees can become lopsided with
these keys.
Paul Cahill
"Hari" <hari_prasad_k@.hotmail.com> wrote in message
news:eoOuuoJGEHA.1180@.TK2MSFTNGP09.phx.gbl...
> Hi,
> Execute the below command with in the database to identify the
> fragmentation,
> DBCC SHOWCONTIG ('table_name') WITH FAST
> DBCC SHOWCONTIG determines whether the table is heavily fragmented. Table
> fragmentation occurs through the process of data modifications (INSERT,
> UPDATE, and DELETE statements) made against the table. This
> will cause additional page reads results in slow performance.
> How to over come the Fragmentation:
> 1. Drop and re-create a clustered index.
> 2. DBCC INDEXDEFRAG (Refer books online)
> Have a look into DBCC SHOWCONTIG in books online for more information.
> Thanks
> Hari
> MCDBA
>
> "pnp" <pnp.at.softlab.ece.ntua.gr> wrote in message
> news:eoKusYJGEHA.3880@.TK2MSFTNGP10.phx.gbl...
everything
> use
type
per
> it
>
|||To add to all the other (sound) advice, please checkout the excellent
whitepaper at
http://www.microsoft.com/technet/pro.../ss2kidbp.mspx
It gives extensive details on how to diagnose and cope with fragmentation,
including working out which indexes to focus on and even whether you need to
bother, based on your workload.
Regards.
Paul Randal
Dev Lead, Microsoft SQL Server Storage Engine
This posting is provided "AS IS" with no warranties, and confers no rights.
"pnp" <pnp.at.softlab.ece.ntua.gr> wrote in message
news:eoKusYJGEHA.3880@.TK2MSFTNGP10.phx.gbl...
> Hi, I'm developing a database driven application that, besides everything
> else, it keeps a log file of all the actions a user has taken during his
use
> of the app.
> This log file is stored in a database table that has a primary key of type
> "bigint" that auto increments (1, 1).
> If ~100 to ~500 actions (insertions, deletions) are made to this table per
> day, how long before I need to re-index the table? Do I need to re-index
it
> at all?
> Thanks in advance,
> Peter
>

Re-indexing required?

Hi, I'm developing a database driven application that, besides everything
else, it keeps a log file of all the actions a user has taken during his use
of the app.
This log file is stored in a database table that has a primary key of type
"bigint" that auto increments (1, 1).
If ~100 to ~500 actions (insertions, deletions) are made to this table per
day, how long before I need to re-index the table? Do I need to re-index it
at all?
Thanks in advance,
Peterpnp,
When are your maintenance windows? Do you have ANY maintenance windows? If y
ou get a chance it would be good to recreate your indexes using the CREATE I
NDEX statement and the DROP_EXISTING clause - however test this for performa
nce against DBCC DBREINDEX.
Remember that these are OFFLINE operations and will lock tables.
If you don't have a maintenance window, then measure your defragmentation us
ing DBCC SHOWCONTIG. Based on a value acceptable to you, you can rebuild you
r index with DBCC INDEXDEFRAG - this is an ONLINE operation and will not loc
k tables, however it is not
as thorough as the other methods.
My advice would be to run DBCC SHOWCONTIG first before doing a rebuild, and
then decide when to do it based on your maintenance windows. From the activi
ty you describe it sounds like you may need to monitor it daily with DBCC SH
OWCONTIG.
Mark Allison, SQL Server MVP
http://www.markallison.co.uk|||Hi,
Execute the below command with in the database to identify the
fragmentation,
DBCC SHOWCONTIG ('table_name') WITH FAST
DBCC SHOWCONTIG determines whether the table is heavily fragmented. Table
fragmentation occurs through the process of data modifications (INSERT,
UPDATE, and DELETE statements) made against the table. This
will cause additional page reads results in slow performance.
How to over come the Fragmentation:
1. Drop and re-create a clustered index.
2. DBCC INDEXDEFRAG (Refer books online)
Have a look into DBCC SHOWCONTIG in books online for more information.
Thanks
Hari
MCDBA
"pnp" <pnp.at.softlab.ece.ntua.gr> wrote in message
news:eoKusYJGEHA.3880@.TK2MSFTNGP10.phx.gbl...
> Hi, I'm developing a database driven application that, besides everything
> else, it keeps a log file of all the actions a user has taken during his
use
> of the app.
> This log file is stored in a database table that has a primary key of type
> "bigint" that auto increments (1, 1).
> If ~100 to ~500 actions (insertions, deletions) are made to this table per
> day, how long before I need to re-index the table? Do I need to re-index
it
> at all?
> Thanks in advance,
> Peter
>|||On a slighly different thread.
I'd be curious to know how SQL Server indexes deal with incremental keys.
Other RDBMS implemented hash indexes as btrees can become lopsided with
these keys.
Paul Cahill
"Hari" <hari_prasad_k@.hotmail.com> wrote in message
news:eoOuuoJGEHA.1180@.TK2MSFTNGP09.phx.gbl...
> Hi,
> Execute the below command with in the database to identify the
> fragmentation,
> DBCC SHOWCONTIG ('table_name') WITH FAST
> DBCC SHOWCONTIG determines whether the table is heavily fragmented. Table
> fragmentation occurs through the process of data modifications (INSERT,
> UPDATE, and DELETE statements) made against the table. This
> will cause additional page reads results in slow performance.
> How to over come the Fragmentation:
> 1. Drop and re-create a clustered index.
> 2. DBCC INDEXDEFRAG (Refer books online)
> Have a look into DBCC SHOWCONTIG in books online for more information.
> Thanks
> Hari
> MCDBA
>
> "pnp" <pnp.at.softlab.ece.ntua.gr> wrote in message
> news:eoKusYJGEHA.3880@.TK2MSFTNGP10.phx.gbl...
everything
> use
type
per
> it
>|||To add to all the other (sound) advice, please checkout the excellent
whitepaper at
http://www.microsoft.com/technet/pr...n/ss2kidbp.mspx
It gives extensive details on how to diagnose and cope with fragmentation,
including working out which indexes to focus on and even whether you need to
bother, based on your workload.
Regards.
Paul Randal
Dev Lead, Microsoft SQL Server Storage Engine
This posting is provided "AS IS" with no warranties, and confers no rights.
"pnp" <pnp.at.softlab.ece.ntua.gr> wrote in message
news:eoKusYJGEHA.3880@.TK2MSFTNGP10.phx.gbl...
> Hi, I'm developing a database driven application that, besides everything
> else, it keeps a log file of all the actions a user has taken during his
use
> of the app.
> This log file is stored in a database table that has a primary key of type
> "bigint" that auto increments (1, 1).
> If ~100 to ~500 actions (insertions, deletions) are made to this table per
> day, how long before I need to re-index the table? Do I need to re-index
it
> at all?
> Thanks in advance,
> Peter
>