Monday, March 19, 2012
Get value from Report
any field from the report. I currently have a windows application with an IE
web control embedded in the windows form. How can I get the value of a
selected field in the report outside of reporting services? Is it possible to
create a web service and pass the value over to it and retrieve it that way
or is there a better way to do this? Thanks for any input.I am not sure what you want to do here. If you want the value of a
selected field from your app to be passed to a report you can pass it
as a parameter to the report.
if you want a value from the report to be passed into your app then you
can pass the value from your report into a custom assembly, which you
can use in your app.|||I would like the value passed from the report to the calling app. Can you
point me to any examples (preferably c#) re. passing values from report into
a custom assembly? Thanks.
"RN" wrote:
> I am not sure what you want to do here. If you want the value of a
> selected field from your app to be passed to a report you can pass it
> as a parameter to the report.
> if you want a value from the report to be passed into your app then you
> can pass the value from your report into a custom assembly, which you
> can use in your app.
>|||The custom assembly would be a C# project with a method in it that
accepts the value you want to pass to your app, which you can save in a
global variable or collection and use in your app. Please refer to
Custom Assemblies in books online for information about how to
reference this assembly in your report and how to call methods in it.
El Presidente wrote:
> I would like the value passed from the report to the calling app.
Can you
> point me to any examples (preferably c#) re. passing values from
report into
> a custom assembly? Thanks.
> "RN" wrote:
> > I am not sure what you want to do here. If you want the value of a
> > selected field from your app to be passed to a report you can pass
it
> > as a parameter to the report.
> > if you want a value from the report to be passed into your app then
you
> > can pass the value from your report into a custom assembly, which
you
> > can use in your app.
> >
> >
Wednesday, March 7, 2012
Get the closest date
I need help in writing a SQL statement in MS SQL Server 2000 to select
the latest date (i.e., the date closest to or equal to the current date)
for a given date.
For example, in a table I have the following records:
Date Exchange-Rate
01/Sep/03 0.55
05/Sep/03 0.59
If the given date is 02/Sep/03, then the rate 0.55 should be return.
If the given date is 03/Sep/03, then the rate 0.55 should be return.
If the given date is 04/Sep/03, then the rate 0.59 should be return.
Thanks in advanced,
Benny
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Don't just participate in USENET...get rewarded for it!Benny Chow (benny@.stg.net.nz) writes:
> I need help in writing a SQL statement in MS SQL Server 2000 to select
> the latest date (i.e., the date closest to or equal to the current date)
> for a given date.
> For example, in a table I have the following records:
> Date Exchange-Rate
> 01/Sep/03 0.55
> 05/Sep/03 0.59
> If the given date is 02/Sep/03, then the rate 0.55 should be return.
> If the given date is 03/Sep/03, then the rate 0.55 should be return.
> If the given date is 04/Sep/03, then the rate 0.59 should be return.
Next time, please include CREATE TABLE statements for the tables you
are working with and INSERT statements with sample data. This makes it
possible to post a tested solution.
Thus, this solution is untested:
SELECT exchangerage, date
FROM rates
WHERE date = (SELECT MAX(date)
FROM rates
WHERE date <= @.date)
--
Erland Sommarskog, SQL Server MVP, sommar@.algonet.se
Books Online for SQL Server SP3 at
http://www.microsoft.com/sql/techin.../2000/books.asp|||CREATE TABLE ExchangeRates (rdate DATETIME PRIMARY KEY, exchangerate
DECIMAL(10,2) NOT NULL)
INSERT INTO ExchangeRates VALUES ('20030901',0.55)
INSERT INTO ExchangeRates VALUES ('20030905',0.59)
DECLARE @.dt DATETIME
SET @.dt = '20030902'
Here's one method:
SELECT exchangerate
FROM ExchangeRates
WHERE rdate =
(SELECT MIN(rdate)
FROM ExchangeRates
WHERE ABS(DATEDIFF(DAY,@.dt,rdate))=
(SELECT MIN(ABS(DATEDIFF(DAY,@.dt,rdate)))
FROM ExchangeRates))
Or you can use TOP:
SELECT TOP 1 exchangerate
FROM ExchangeRates
ORDER BY ABS(DATEDIFF(DAY,@.dt,rdate)), rdate
Personally, I would avoid TOP because it's a MS proprietary extension to
SQL.
--
David Portas
----
Please reply only to the newsgroup
--|||Benny wants the closest, before or after the specified date according to his
example.
--
David Portas
----
Please reply only to the newsgroup
--|||Thanks David, this is exactly what I needed. :)
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Don't just participate in USENET...get rewarded for it!|||Benny,
This might be a little more efficient than other
solutions, but it's not as simple:
select top 1 exchangerate
from (
select exchangerate, pref
from (
select top 1 exchangerate, 1 as pref
from (
select top 3 rdate, exchangerate
from ExchangeRates E1
where E1.rdate >= (
select max(rdate) as lastBefore
from ExchangeRates E2
where E2.rdate < @.dt
)
order by rdate
) X
order by case when rdate < @.dt then @.dt - rdate else rdate - @.dt end
) X1
union all
select exchangerate, pref
from (
select top 1 exchangerate, 2 pref
from ExchangeRates
order by rdate
) Y
) T
order by pref
-- Steve Kass
-- Drew University
-- Ref: 250CBB08-57AE-45C7-97F2-AF26AFC368ED
Benny Chow wrote:
> Hello,
> I need help in writing a SQL statement in MS SQL Server 2000 to select
> the latest date (i.e., the date closest to or equal to the current date)
> for a given date.
> For example, in a table I have the following records:
> Date Exchange-Rate
> 01/Sep/03 0.55
> 05/Sep/03 0.59
> If the given date is 02/Sep/03, then the rate 0.55 should be return.
> If the given date is 03/Sep/03, then the rate 0.55 should be return.
> If the given date is 04/Sep/03, then the rate 0.59 should be return.
> Thanks in advanced,
> Benny
> *** Sent via Developersdex http://www.developersdex.com ***
> Don't just participate in USENET...get rewarded for it!|||David Portas (REMOVE_BEFORE_REPLYING_dportas@.acm.org) writes:
> Benny wants the closest, before or after the specified date according to
> his example.
Funny guy. :-) Some of our tables for prices and rates are sparse in a
similar manner, but we always assume that a value applies until a new
value comes in. So I assume he wanted the same.
But had Benny included CREATE TABLE and sample data in INSERT statements,
I would have seen that my solution was wrong!
--
Erland Sommarskog, SQL Server MVP, sommar@.algonet.se
Books Online for SQL Server SP3 at
http://www.microsoft.com/sql/techin.../2000/books.asp|||> Funny guy. :-) Some of our tables for prices and rates are sparse in a
> similar manner, but we always assume that a value applies until a new
> value comes in. So I assume he wanted the same.
I agree that it seems like an unusual requirement. Although I suppose if you
wanted to calculate the value of a currency deal retrospectively it might
make sense to take the closest rate as the best approximation. But IANAA.
> But had Benny included CREATE TABLE and sample data in INSERT statements,
> I would have seen that my solution was wrong!
I know that feeling! :|
--
David Portas
----
Please reply only to the newsgroup
--|||Thanks for all your guys help ^^.
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Don't just participate in USENET...get rewarded for it!