Using Datasource location

Hello,
I am trying to change the tables used in a specific report. Table "Customers" is currently being used in the report. I have made a copy of this table in my MS SQL DB and called it "Customers_2011". Using 'Set Datasource Location" I am trying to replace "Customers" with "Customers_2011", but nothing seems to happen when I press 'Update'
Do the tables have to have the exact same name?
Am I doing something wrong? or is there another way I should be doing this?
Any help is appreciated.
Thanks
Joe

Hi Joe,
If the datasource has been updated, then the best place to look for the change is to look under 'Properties' of the connection. When you open the 'Set datasource Location' window it shows the connection name and under that it shows 'Properties' and then the table names.
The table names also have their 'Properties' and when you click to open the tree, it should have the 'Table Name'. This property shows the original table name.
In your case if it shows 'Customers_2011' under the properties and 'Customers' as the Tree heading, then you can change that from the 'Database Expert'. You should be able to rename the table by right-clicking it in the Database Expert.
Hope this helps!
-Abhilash

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Hi Ken,
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Hi Try like this,
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Post Author: Jamal
CA Forum: Semantic Layer and Data Connectivity
Dear Folks,
I have crystal report 10 and MS access, I need to change my datasource location at runtime without having to type code other than crystal report like VB or C++, Do crystal report have this possibility to change datasource location at runtime without needing to code other than crystal report ???
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Post Author: matthewh
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Dear all,
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Not aware of how you can do this in code.
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Hi WK,
According to your stack trace, you are using a very old version of OC4J. I suggest updating to the latest, production version: 9.0.3
Also, I seem to recall reading somewhere (I think it was in this forum), that "DataSource" is not serializable, and therefore cannot be transferred to the client.
I use "DataSource" in my BMP entity beans to interact with the database -- this works fine. I have not tried getting a "DataSource" from a remote client, though.
And also you may need to pass some "properties" to your "InitialContext" constructor -- depending on the type of client you are using (which I could not ascertain from your post).
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Good Luck,
Avi.

CrystelReport Datasource location problem

I'v developed an application.which works very fine on my pc. I havent done any hardcode there. I Have following code on my crystel reportviewer
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Couple of suggestiond:
1) make sure the db client is exactly the same version on both computers. You may want to use [Modules|https://smpdl.sap-ag.de/~sapidp/012002523100006252802008E/modules.zip] to check that.
2) See KB [1553921 - Is there a utility that would help in writing database logon code?|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_bi/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333533353333333933323331%7D.do]
Ludek
Follow us on Twitter http://twitter.com/SAPCRNetSup
Got Enhancement ideas? Try the [SAP Idea Place|https://ideas.sap.com/community/products_and_solutions/crystalreports]

Where can I find how to use DataSource?

Hi,
I am quite new to JDBC and is writing some small database program. I find many examples use DataSource, I want to know how to use it, but cannot find the API in the docs section of java.com.
Can anyone point me to the location of javax.sql.DataSource, or even better some examples of using DataSource?
Also, I am using Oracle as my database, do I need to register the oracle driver first for DataSource first also?
Any help will be approcaited.

Hi,
You can get the more detailed documentation at
http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html and please visit http://www.datadirect-technologies.com/download/docs/jdbc/jdbcref/usejdbc.htm for information on how to connect to database using datasources.
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Set Datasource Location does nothing???

I dont get it...
I have reports that are fed by SQL Server stored procedures. Every now and then the developers will change some minor thing in one of the procedures (maybe a Group by or Order by change) and then rename the stored procedure. So for example....
USP_RPT_MYREPORT gets a minor update and gets renamed to USP_RPT_MYNEWREPORT...
(I am over-simplifying, but you get the idea...)
I go into Crystal Reports in Visual Studio and select the "Set Datasource Location" choice off the menu. There, right on the darn screen that comes up it says "highlight the new datasource and click the Update button"... I do that, and absolutely NOTHING happens, NOTHING changes, NOTHING gets updated. I've done this about 20 times and now and every time, same thing - NOTHING happens.
But if I go into the Database Expert, highlight my existing stored proc, and then hit "F2" to rename the alias, and set it to the new stored proc name - BING!!! Everything works just fine.
I looked in the Crystal documentation but of course, nothing there to illuminate whats going on with this seemingly useless "Set Datasource" selection... So...
What is this for? What is it all about? ...and why doesnt it work?
Any help would be appreciated and sorry in advance for being frustrated - I work in Crystal...

Thanks for the response and the attemp to help, but this cannot be quite correct - at least it does not seem so. How do I know this?....
Well, I have 2 stored procedures that are almost exactly alike - the only difference is the ORDER BY clause in the SQL itself (so this should have NO effect on Crystal)...
I use the Set Datasource selection and yes, you are right, it DOES NOT change the name from my old Stored Procedure to the new one. But if you are suggesting that it DID actually change where its pointing I dont believe you are correct because of this...
The report itself has 3 Groups - these group headers are "tied" to the first stored procedure and even though I change the datasource (supposedly), these groups DO NOT change and thus when I run the report I get an error stating that the "Groupings do not exist"...
In other words lets say the first stored procedure is called "SP1" and I am changing to a virtually identical stored procedure called "SP2". Sure enough, when I use Set Datasource, the name DOES NOT change - it still says SP1... But when I run the report the Grouping dies because nothing changed it to "SP2". In fact, the Groups now say "???"
What is particularly odd and frustrating about this (and also the sign of a very poorly QA'd product) is that if I go into the Database Expert and simply press "F2" and change the alias from SP1 to SP2, that seems to do the very thing that Set Datasource seems entirely unable, undesigned and unwilling to do.
Bear in mind here that I have worked with Crystal for 3 very painful years and when any fields (columns) change in the backend SQL, I understand that it takes hours to rework the entire report - its stupid, it shouldnt take that long, but I have just accepted it with this klunky product - but when NO fields change it seems to me that should be very easy to manage and yet the only way I have found to do it is to try Set Datasource, watch it fail again and again and then use the Database Expert (and the F2 key in there) to rename the alias.
In all the Crystal documentation I have (downloaded, and came with product) there is not one line I can find that talks about what Set Datasource is supposed to do, and should be doing.
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Follow us on Twitter @VZWSupport

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