Customize where clause c# (RDL)

We have may reports that need to customize the where clause based on
parameters entered by the end user. Is there a way to modify the RDL on the
fly in order to achieve this? I am using VS2005 and SQLServer 2005.
Example:
if user selects run report by week ending date the following line needs to
be used
"and we_dt between ? and ?
if the user selects the run the report by export date then the line changes
to:
"and export_dt between ? and ?You can handle this via expressions in the command text of the dataset.
It is much easier than modifying the RDL on the fly.
For example, you can use VB expressions in the command text to
something like this:
="SELECT field1, field2 FROM tblName WHERE " &
iif(Parameter!Param1.Value = something, "do between stuff", "don't do
between stuff")
Andy Potter|||We'll look into this, but what if the entire WHERE cluase needs to be modified?
Are there any good examples of people doing this? Either through changing
the RDL or passing the entire where clause into the report?
Thanks
"Potter" wrote:
> You can handle this via expressions in the command text of the dataset.
> It is much easier than modifying the RDL on the fly.
> For example, you can use VB expressions in the command text to
> something like this:
> ="SELECT field1, field2 FROM tblName WHERE " &
> iif(Parameter!Param1.Value = something, "do between stuff", "don't do
> between stuff")
> Andy Potter
>|||Using expressions, your entire command text is available for
manipulation. Just do something like this:
="SELECT field1, field2 FROM tblName " & iif(Parameter!Param1.Value ="all", "", "WHERE field=" & Parameter!Param1.Value )
Personally, I prefer this kind of logic in a stored procedure. I find
large expressions to handle string manipulation to be a bit unwieldy.
The other option to handle large string manipulation is the custom code
section of the report, which give you a little more flexibility as far
writing your string manipulation code.
Andy Potter

Customize Report Parameter Properties

Is it possible to modify the XML code at runtime? I want to control the
report parameter properties multi-value setting of True/False during runtime
in the XML behind the RDL file. Set it to True if I want the parameters to be
multi-value or False for single-value. This is determined based on the value
selected in parameter one. Parameter one and two are City,State.
If City is selected in parameter one then I want Parameter two to be a
single-valued list, if State is chosen in Parameter One then I want the list
in Parameter two to be a multi-valued select list.
Any ideas or guidance would be appreciated.No, this is not possible.
Bruce Loehle-Conger
MVP SQL Server Reporting Services
"arulibaba" <arulibaba@.discussions.microsoft.com> wrote in message
news:939952BF-0FB7-42A8-AF1C-A9E4005BCAF5@.microsoft.com...
> Is it possible to modify the XML code at runtime? I want to control the
> report parameter properties multi-value setting of True/False during
> runtime
> in the XML behind the RDL file. Set it to True if I want the parameters to
> be
> multi-value or False for single-value. This is determined based on the
> value
> selected in parameter one. Parameter one and two are City,State.
> If City is selected in parameter one then I want Parameter two to be a
> single-valued list, if State is chosen in Parameter One then I want the
> list
> in Parameter two to be a multi-valued select list.
> Any ideas or guidance would be appreciated.
>|||Looking at my example, could you recommend an approach to tackle this issue?
"Bruce L-C [MVP]" wrote:
> No, this is not possible.
>
> --
> Bruce Loehle-Conger
> MVP SQL Server Reporting Services
> "arulibaba" <arulibaba@.discussions.microsoft.com> wrote in message
> news:939952BF-0FB7-42A8-AF1C-A9E4005BCAF5@.microsoft.com...
> > Is it possible to modify the XML code at runtime? I want to control the
> > report parameter properties multi-value setting of True/False during
> > runtime
> > in the XML behind the RDL file. Set it to True if I want the parameters to
> > be
> > multi-value or False for single-value. This is determined based on the
> > value
> > selected in parameter one. Parameter one and two are City,State.
> >
> > If City is selected in parameter one then I want Parameter two to be a
> > single-valued list, if State is chosen in Parameter One then I want the
> > list
> > in Parameter two to be a multi-valued select list.
> >
> > Any ideas or guidance would be appreciated.
> >
>
>|||It is a nice concept but this is not an area you have control over if you
are using the portal (report manager) that ships with Reporting Services. If
you want to create your own web page and then integrate with RS using either
web services or url integration this is certainly possible. RS 2005 ships
with a webform and a winform control for integrating RS reports into your
applications.
Bruce Loehle-Conger
MVP SQL Server Reporting Services
"arulibaba" <arulibaba@.discussions.microsoft.com> wrote in message
news:2E596365-10F4-45F0-A89C-AA99568E53DE@.microsoft.com...
> Looking at my example, could you recommend an approach to tackle this
> issue?
> "Bruce L-C [MVP]" wrote:
>> No, this is not possible.
>>
>> --
>> Bruce Loehle-Conger
>> MVP SQL Server Reporting Services
>> "arulibaba" <arulibaba@.discussions.microsoft.com> wrote in message
>> news:939952BF-0FB7-42A8-AF1C-A9E4005BCAF5@.microsoft.com...
>> > Is it possible to modify the XML code at runtime? I want to control the
>> > report parameter properties multi-value setting of True/False during
>> > runtime
>> > in the XML behind the RDL file. Set it to True if I want the parameters
>> > to
>> > be
>> > multi-value or False for single-value. This is determined based on the
>> > value
>> > selected in parameter one. Parameter one and two are City,State.
>> >
>> > If City is selected in parameter one then I want Parameter two to be a
>> > single-valued list, if State is chosen in Parameter One then I want the
>> > list
>> > in Parameter two to be a multi-valued select list.
>> >
>> > Any ideas or guidance would be appreciated.
>> >
>>|||Thank you for your reply. So if I create a separate web page, can I reference
this page as a link from Report Manager going out and launching this custom
page/report? Would I find the winform/webform via Visual Studio?
"Bruce L-C [MVP]" wrote:
> It is a nice concept but this is not an area you have control over if you
> are using the portal (report manager) that ships with Reporting Services. If
> you want to create your own web page and then integrate with RS using either
> web services or url integration this is certainly possible. RS 2005 ships
> with a webform and a winform control for integrating RS reports into your
> applications.
>
> --
> Bruce Loehle-Conger
> MVP SQL Server Reporting Services
> "arulibaba" <arulibaba@.discussions.microsoft.com> wrote in message
> news:2E596365-10F4-45F0-A89C-AA99568E53DE@.microsoft.com...
> > Looking at my example, could you recommend an approach to tackle this
> > issue?
> >
> > "Bruce L-C [MVP]" wrote:
> >
> >> No, this is not possible.
> >>
> >>
> >> --
> >> Bruce Loehle-Conger
> >> MVP SQL Server Reporting Services
> >>
> >> "arulibaba" <arulibaba@.discussions.microsoft.com> wrote in message
> >> news:939952BF-0FB7-42A8-AF1C-A9E4005BCAF5@.microsoft.com...
> >> > Is it possible to modify the XML code at runtime? I want to control the
> >> > report parameter properties multi-value setting of True/False during
> >> > runtime
> >> > in the XML behind the RDL file. Set it to True if I want the parameters
> >> > to
> >> > be
> >> > multi-value or False for single-value. This is determined based on the
> >> > value
> >> > selected in parameter one. Parameter one and two are City,State.
> >> >
> >> > If City is selected in parameter one then I want Parameter two to be a
> >> > single-valued list, if State is chosen in Parameter One then I want the
> >> > list
> >> > in Parameter two to be a multi-valued select list.
> >> >
> >> > Any ideas or guidance would be appreciated.
> >> >
> >>
> >>
> >>
>
>|||Well, the only way you could do this is to have a report that just has
links. You would need to have your own website. Usually people either use
Report Manager or provide their own front end via their own application.
Bruce Loehle-Conger
MVP SQL Server Reporting Services
"arulibaba" <arulibaba@.discussions.microsoft.com> wrote in message
news:EFC6D25C-E313-4398-92F6-1C5651FABFB9@.microsoft.com...
> Thank you for your reply. So if I create a separate web page, can I
> reference
> this page as a link from Report Manager going out and launching this
> custom
> page/report? Would I find the winform/webform via Visual Studio?
> "Bruce L-C [MVP]" wrote:
>> It is a nice concept but this is not an area you have control over if you
>> are using the portal (report manager) that ships with Reporting Services.
>> If
>> you want to create your own web page and then integrate with RS using
>> either
>> web services or url integration this is certainly possible. RS 2005 ships
>> with a webform and a winform control for integrating RS reports into your
>> applications.
>>
>> --
>> Bruce Loehle-Conger
>> MVP SQL Server Reporting Services
>> "arulibaba" <arulibaba@.discussions.microsoft.com> wrote in message
>> news:2E596365-10F4-45F0-A89C-AA99568E53DE@.microsoft.com...
>> > Looking at my example, could you recommend an approach to tackle this
>> > issue?
>> >
>> > "Bruce L-C [MVP]" wrote:
>> >
>> >> No, this is not possible.
>> >>
>> >>
>> >> --
>> >> Bruce Loehle-Conger
>> >> MVP SQL Server Reporting Services
>> >>
>> >> "arulibaba" <arulibaba@.discussions.microsoft.com> wrote in message
>> >> news:939952BF-0FB7-42A8-AF1C-A9E4005BCAF5@.microsoft.com...
>> >> > Is it possible to modify the XML code at runtime? I want to control
>> >> > the
>> >> > report parameter properties multi-value setting of True/False during
>> >> > runtime
>> >> > in the XML behind the RDL file. Set it to True if I want the
>> >> > parameters
>> >> > to
>> >> > be
>> >> > multi-value or False for single-value. This is determined based on
>> >> > the
>> >> > value
>> >> > selected in parameter one. Parameter one and two are City,State.
>> >> >
>> >> > If City is selected in parameter one then I want Parameter two to be
>> >> > a
>> >> > single-valued list, if State is chosen in Parameter One then I want
>> >> > the
>> >> > list
>> >> > in Parameter two to be a multi-valued select list.
>> >> >
>> >> > Any ideas or guidance would be appreciated.
>> >> >
>> >>
>> >>
>> >>
>>

Custom Task: How to access/modify the variables of a package

Hi,

I'm trying to simplify the deployment process of my project. I already had some troubles with the config files but lets say I solved that issue. I'm going to read a flat file and set the variables of my packages from this file. I was thinking to use a Script Task to do that but I will need to copy this task in every package (I have at least 30). So if I want to make some change this will be painful.

Then, I came up with the idea of creating a Custom Task called Config File Task. I'm working on this but I got stuck trying to get the variables from the package that is running my Config File Task.

This is the code I had in the Script Task:

Dim streamReader As New StreamReader(Dts.Variables("ConfigFilePath").Value.ToString)
Dim line As String
Dim lineArray As String()
Dim variableName As String
Dim variableValue As String
Dim readConfigurations As Boolean = False

While (streamReader.Peek() <> -1)
line = streamReader.ReadLine()
If line = "[CONFIGURATIONS]" Then
readConfigurations = True
ElseIf line = "[/CONFIGURATIONS]" Then
readConfigurations = False
Else
If readConfigurations And line <> "" Then
lineArray = line.Split("|".ToCharArray())
variableName = lineArray(0).Trim()
variableValue = lineArray(1).Trim()

If Dts.Variables.Contains(variableName) Then
Dts.Variables(variableName).Value = variableValue
End If
End If
End If
End While
Dts.TaskResult = Dts.Results.Success

All I want to do is set the variables that exists in each package from the config file. In my UI Class (ConfigFileTaskUI.cs) I can have access to the variables via the TaskHost which is passed as an argument of Initialize() method.

Any thoughts? I'd really appreciate some help!

P.S. I've been working on this for 2 days!

I don't have an answer to your question, but have you looked at using package configurations (SSIS > Package Configurations from the BIDS menu)? these can be stored as simple XML files that can be used for the same purpose as what I think you are trying to do here.

Note that BIDS will not save connection string passwords for you - you would have to open the XML file and edit it manually to add these if you are using it for connection strings.

You can use these XML files to store variable values as well as lots of other properties of your package objects. You could write your own code to manipulate the contents of the XML configuration files however you like.

Another option would be to store your values in a database and fetch the values into the variables using SSIS Execute SQL tasks or a similar method.

Maybe you've thought of all this already and ruled it out for some other reason - but based on your post this would seem a much simpler method?

|||Hi Slicktop,

Yes, I tried the XML config file but you cannot have configurations that don't exists in the package. About the SSIS_Configuration table, I thought of this but it's not a good idea for my deployment process. Somehow, I need to get the information from this table and put it in a flat file so I can store it in CVS. Plus, I need to fill this table every time I deploy my packages. I know this is not so difficult but my client don't want to do this.

There is a property in the Package object which disable the warning messages from the configuration file. If I set to True, I don't get an error message when I have just one XML config file with multiple configurations which they may or may not exists in the package to be executed. I don't like doing this because it doesn't seem right.

Thanks for your ideas.|||

What about just reading the flat file using SSIS? You could either load it into a work table and then query it to set variables, or maybe even use a transform to extract the values you need.

When you say "you cannot have configurations that don't exist in the package", what do you mean exactly? Your variable names aren't defined in the package?

|||That's right!. I don't have the same variables in every package. I have a log file per package so in the flat file I have:

log_package_1 = something
log_package_2 = something
log_package_3 = something
conn_db = connection string to db
file_vpn = path to the vpn file

and so on, so in package 1 I only have declared variable log_package_1 but not the rest of the variables of my flat file. Reading the flat file with SSIS could be a possible option but the thing is I have a custom flat file, I mean it's not comma separated and I have some "tags" so I don't think SSIS can read it.

Thanks for the ideas!|||

well obviously I don't know all the details of your situation but it sure seems like you are trying to do this the hard way.

Is there some reason why your custom flat file has to have a "custom" format?

If your goal is to dynamically populate package variables, and the variable names are defined in the package definition, then you can use package configurations to do this. If your goal is to have only a single flat file that contains all variable values across multiple packages, then why not just write these into a standard, machinable format (XML, delimited file, whatever) and then use SSIS to load the file into a DB table. Then from each package, query the table for the variable values needed for that particular package and use the resultset to populate the package variables.

Your table could be generic, with two varchar columns, var_name and var_value.

so, in package 1, you could write an execute SQL task that runs "select var_value from control_table where var_name = 'log_package_1', etc.

If you put a bit of thought into this you could probably make parts of this solution quite generic so that you could write it once and copy/paste the tasks into each package or nest your packages to re-use it. for example, maybe add a "package_name" column to the control table that you could use to query all variables for a package using the same SQL.

sorry, I know I haven't answered your original question (don't know the answer) but thought maybe there is a better (easier) way to do this.

|||Why are you punishing yourself with such a masochistic task?

I mean, why not just use XML Configuration files?|||

Has the original question been answered?

The Task.Execute method is where you will place the code that reads from the file and sets variables. The execute gives you access to the VariableDispenser object as on of the parameters, in much the same way as the TaskUI.Initialize method does, is this not enough?

The Dts.Variables syntax you have used in the Script Task is not applicable, you need to manually control the locking in the variable dispenser. Look at the Lock* methods as documented for the variable dispenser.

|||Hi DarrenSQLIS,

No, the original question haven't been answered yet. I know that Dts.Variables is not applicable in my case when creating a Custom Task. I checked the VariableDispenser object and there are a few methods. For example, the GetVariables(ref Variables variables) but I don't have the collections of variables to pass it as the parameter for this method.

I think I need somehow to tell SSIS which variables are for read-only access and which ones are for read/write. Even so, I would like to know first the variable name and their respective values first. The VariableDispenser object seems useless because I don't know how to get the variables within the package that is executing my Custom Task.

My goal is to know the name of all the User Variables in a package and then set these variables to their respective values that I'm reading from a flat file.

Using XML configuration files is not a solution, I'm not going to set the SuppressConfigurationWarnings property to True in each package. Probably you think I'm trying to do it the hard way but I have to follow some constraints and standards from my client.

Thank you all for your replies.|||

The methods, GetVariables, LockOnForRead or LockOneForWrite all expect a reference parameter of type Variables. This is just the variables collection that is filled with the 'locked' variables that you have asked for, e.g.

Variables variables = null;
variableDispenser.LockOneForRead(this.SnapshotName, ref variables);
snapshotName = variables[0].Value as string;
variables.Unlock();

From what you're saying though you don't know in advance what variables you want to lock, and that is a problem. There is no way to just ask for a list of all variables. I assume your pseudo config item and the variable name match, so at best you can loop through the config items and ask if a variable of that name exists, using the VariableDispenser.Contains method. If found then lock it and do what you want, but you cannot just eneumerate a collection of all variables in the package to find out what is there.

|||Hi DarrenSQLIS,

Yeah, you're right! My pseudo config item and the variable name match so I can loop through the config items and that's what I did. I wasn't understanding the purpose of the GetVariables() method of VariablesDispenser. After I played with it some time I realized it copies the variables from the package that you lock (read-only or r/w) before to the Variables collection that you pass by reference. Then you can access the variables from this collection and set them. What I don't understand completely is how the variables are return to the package or VariablesDispenser. I'm guessing is after you unlock them.

Well, thank you so much for your tips/ideas/suggestions. I finally finished building my Custom Task as I wanted. It's a shame you cannot access all the variables without knowing the name of the variables ahead. In this case I'm assuming that whatever is in the package is also in the config file but my process will fail if the package has a variable that the config file doesn't.sql

custom subscription schedule

Is it possible to modify the subscription schedules such that you can avoid
sending reports on non-production days? Holidays, for example? I've got a
few simple subscriptions, each configured to run the reports on 'Every
Weekday'. But, what of the holidays? Is there anyway to account for
holidays, and avoid sending out empty reports?
-- LynnAny thoughts at all? I have a calendar table, I use it like this:
SET DATEFIRST 7
IF DATEPART(WEEKDAY, GETDATE()) BETWEEN 2 AND 6
AND NOT EXISTS (SELECT 1 FROM db.dbo.calendar WHERE dt = CONVERT(CHAR(8),
GETDATE(), 112) AND isholiday = 1)
BEGIN
EXEC ......
END
Thus I am able to avoid running certain items on non-production days. As
you know, Reporting Services subscriptions create corresponding SQL Agent
jobs. Can I not preface the tSQL command w/the same thing, like this? :
SET DATEFIRST 7
IF DATEPART(WEEKDAY, GETDATE()) BETWEEN 2 AND 6
AND NOT EXISTS (SELECT 1 FROM db.dbo.calendar WHERE dt = CONVERT(CHAR(8),
GETDATE(), 112) AND isholiday = 1)
BEGIN
exec ReportServer.dbo.AddEvent @.EventType='TimedSubscription',
@.EventData='ace5773f-2dec-4d0e-9d89-b73b42f1db00'
END
My only concern here is that I'm somewhat new to RS, I'm just worried that
modifying the scheduling via SQL Agent may conflict with the RS subscription.
Any ideas, please?
-- Lynn
"Lynn" wrote:
> Is it possible to modify the subscription schedules such that you can avoid
> sending reports on non-production days? Holidays, for example? I've got a
> few simple subscriptions, each configured to run the reports on 'Every
> Weekday'. But, what of the holidays? Is there anyway to account for
> holidays, and avoid sending out empty reports?
> -- Lynn

Custom sort records in a stored proc

Is there any way to modify this proc so that:
If it recieves a non-negative centre_id the data is ordered by
centre_name but with the centre whose id was passed, being first in
the the list.
If -1 is passed then just order by centre_name.
thanks.
CREATE PROCEDURE [dbo].[get_centres]
@.centre_id smallint
AS
SELECT centre_id, centre_name FROM tbl_centre
ORDER BY CASE
WHEN centre_id= @.centre_id Then 0
WHEN centre_id=-1 THEN centre_name
ELSE centre_id End
GOSELECT centre_id, centre_name
FROM tbl_centre
ORDER BY
CASE WHEN centre_id <> @.centre_id THEN 1 END,
centre_name
David Portas
SQL Server MVP
--|||Try,
...
order by
case when @.centre_id > -1 and centre_id = @.centre_id then 0 else 1 end,
centre_name;
AMB
"hals_left" wrote:

> Is there any way to modify this proc so that:
> If it recieves a non-negative centre_id the data is ordered by
> centre_name but with the centre whose id was passed, being first in
> the the list.
> If -1 is passed then just order by centre_name.
> thanks.
> CREATE PROCEDURE [dbo].[get_centres]
> @.centre_id smallint
> AS
> SELECT centre_id, centre_name FROM tbl_centre
> ORDER BY CASE
> WHEN centre_id= @.centre_id Then 0
> WHEN centre_id=-1 THEN centre_name
> ELSE centre_id End
> GO
>|||Thanks.
"David Portas" <REMOVE_BEFORE_REPLYING_dportas@.acm.org> wrote in message news:<1114789890.6
70395.10780@.g14g2000cwa.googlegroups.com>...
> SELECT centre_id, centre_name
> FROM tbl_centre
> ORDER BY
> CASE WHEN centre_id <> @.centre_id THEN 1 END,
> centre_name