Entity Framework Data First - Invalid Object Name dbo.TableName - database

sup?
I got this problem wich has been slowing down my production a lot, hope u guys can give me any tip on how to solve it....
I'm currently using EF6 and a custom ConnectionString with a connectionString builder class that reads and external xml file.
My database is all set up and running in SQL 2010 and Management Studio ok, but whenever I generate the edmx file, it generates the class mappings okay, I've compared the original ConnectionString to my ConnectionString Builder they're the same, changed the :base to receive a custom ConnectionString, all set.
But when I try to save changes it doesn't find the table object, I have deleted it, created again from the start, still same "Invalid database object Dbo.TableName" error.
Does any one have a clue on this?
Thanks in Advance!

This error is not coming from Entity Framework but directly from the database.
Use SQL Profiler and include in the trace the "DatabaseName" and "ServerName" and you will find out it's not the same as your expected.
The only other options which this issue happen is if your "tableName" is not the same as the table name in SQL, so run the SQL from the SQL Profiler directly into SSMS.

Related

Query with SQL Server 2008 R2 with FireDAC

I'm new to Firedac but not with Delphi
I can make a connection with SQL Server, and when I connect, there is no problem. I get connection OK. It works with code, with the wizard and with the FireDAC explorer.
The name of the database is :
C:\PROGRAM FILES (X86)\MICROSOFT SQL SERVER\MSSQL.1\MSSQL\DATA\3410b539-431f-4dff-ad0d-a574d1b13498.MDF
I'm stuck with a simple query.
SELECT *
FROM Account;
This query works from within the FireDac explorer but not from my program, I'm getting the following error:
[FireDAC][Phys][ODBC][Microsoft][SQL Server Native Client 11.0][SQL Server]Could not find server 'C:\PROGRAM FILES (X86)\MICROSOFT SQL SERVER\MSSQL' in sys.servers. Verify that the correct server name was specified. If necessary, execute the stored procedure sp_addlinkedserver to add the server to sys.servers.'
I'm also also getting the same error, when I try to do it from the UI within Delphi.
To try the query, I dropped onto the form a TFDQuery, the connection property was set automatically to the unique connection on the form. Then I set the query with the query editor, I get the error when I click on execute.
With code it like this :
FDConnection1.Connected := true;
FDQuery1.Close;
FDQuery1.SQL.Text := 'select * from Account;';
FDQuery1.Active := True;
When I debug the program, I get the error when setting the query active.
I see that the name of the DB is not complete in the error message. But it's complete in the component settings
Please advise,
I tried some extra test :
If I run the query from the UI editor (double-clicking on the FDConnection, Tab SQL Script), type the query, it works :-).
But when I try to do it on the FDQuery component, with the connection assigned to previous FDConnection, I get the same error. It' like some parameters are missing.
You are using the location of the SQL data file, instead of the name of the SQL Database.
If you do not know the name you can use the wizard to try and find it.
(Sorry could not add comments yet. This is also mentioned by Jens in the comments)
Update: if that is really the name, try enclosing it in [ ].
I got this response from an Embarcadero engineer:
The problem is not in FireDAC, but in SQL Server ODBC driver
SQLPrimaryKeys function. It fails to work with a catalog name
containing a dot. FireDAC uses this function to get primary key fields
for a result set, when fiMeta is included into FetchOptions.Items. So,
as a workaround / solution, please exclude fiMeta from
FetchOptions.Items.

How to change application name with Entity Framework

In the SQL Management Studio, ever connection has an Application listed along with it... for every EF connection I have it just says "EntityFramework" as the application name. How do I alter this so I can actually put the name of the app in this field?
http://blogs.msdn.com/b/dditweb/archive/2006/03/02/542151.aspx
From the article:
Here's a great trick that can be really handy if you're a fan of the
SQL Profiler. In your application connection strings add the
"Application Name" keyword/value. Example.
server=MyServer;database=MyDatabase;Integrated Security=SSPI;Application Name=My Application;
After this is done,
fire up SQL Profiler and you'll notice that the profiled events are
categorized under the name you provide rather than the default Data
Provider name.
Edit:
If you look at your current entity framework connection string near the end of the string (assuming you're using an autogenerated string) you should already see an "Application name=EntityFramework. You can just change that to your desired application name and boom!

SQL Server 2012 error: object reference not set to an instance of an object

I use SQL Server 2012 and I have some databases on it. The problem is I suddenly get an error saying,
object reference not set to an instance of an object
I get this error when:
Going to write a new query
Select previously entered data by right click the table name ->
Select top 1000 rows
What I can do without getting error message:
Log into my instance successfully using both Windows Authentication mode and SQL Authentication mode.
Edit the table data by right click the table name -> Edit top 200 rows
Create a new database
I'm using:
Microsoft SQL Server Management Studio: 11.0.3128.0
Microsoft .NET Framework: 4.0.30319.34014
Operating System: Windows 8.1
Here are some snapshots of the error.
Please give me a solution to fix this problem. Your help will be highly appreciated.
I fixed the problem by running SSMS as administrator.
I could solve the error.
Repair the SQL Server.
Go to Add/remove programs Microsoft SQL Server 2012(x64) -> Uninstall/Change -> Repair.
Select the instance that you want to repair here.
For me, after repairing the instance, the error was solved.
Thanks for all who spent their valuable time to reply my question.
I got the same error message. Problem was 0 bytes free on the C: drive.
Its may be late, but i get the same error in SQL SERVER 2016, i resolved it by assigning full access to the back up folder.
I faced the same error once in my project. This is purely due to SSMS(sql client) is corrupted. Just for cross check that server is fine and client is corrupted, try to connect to the sql-server in this machine from any other server if you have access and query the tables. If it returns data, just uninstall and reinstall the client(ssms) to solve the issue
Thanks
I got the same error for SQL 2016 and the only solution for me was to completely uninstall (in appwiz.cpl) all entries Visual Studio + SQL. Then I executed VisualStudioUninstaller and I reinstalled SQL and after Visual Studio.
I got the same message when I try to alter table to add new column . Issue is I haven't enclosed data types using '[' datatype ']' . Its Real data type. But It got fixed when I enclosed in using square braces.
My solution for this was to extract the csv file with the python library pandas rather than saving it with Excel. Further, I removed columns that I didn't need as a few columns caused formatting errors during the import.
For those who are unable to modify their SQL configuration due to administrative restrictions at work:
I was able to open a new query page by creating a SQL Server Scripts project and adding a new query through the solution explorer
I got the message after deleting a database. The database was gone, so I moved on.

SSRS Query execution failed for dataset

Have just deployed my Project on to my reporting Server.
I have multiple datasets which are referencing views which exist on the db on that server.
When I try to go into any report part I am getting this message:
An error has occurred during report processing. (rsProcessingAborted)
Query execution failed for dataset 'dataset1'. (rsErrorExecutingCommand)
For more information about this error navigate to the report server on the local server machine, or enable remote errors
Can anyone help?
I enabled remote errors to pinpoint the problem.
I identified that a column in a particular dataset (one of my views) was throwing an error.
So using a tool "SQL Delta", I compared the development version of the database with the live version on the reporting server. I noticed that one of the views had an extra column on the development server, that was not on the live version of the db.
SQL Delta generated the script I needed to run to update the view on my live db.
I ran this script, re-ran the report, everything worked.
I encountered a similar error message. I was able to fix it without enabling remote errors.
In Report Builder 3.0, when I used the Run button to run the report, an error alert appeared, saying
An error has occurred during report processing. (rsProcessingAborted)
[OK] [Details...]
Pressing the details button gave me a text box where I saw this text:
For more information about this error navigate to the report server
on the local server machine, or enable remote errors
----------------------------
Query execution failed for dataset 'DataSet1'. (rsErrorExecutingCommand)
I was confused and frustrated, because my report did not have a dataset named 'DataSet1'. I even opened the .rdl file in a text editor to be sure. After a while, I noticed that there was more text in the text box below what I could read. The full error message was:
For more information about this error navigate to the report server
on the local server machine, or enable remote errors
----------------------------
Query execution failed for dataset 'DataSet1'. (rsErrorExecutingCommand)
----------------------------
The execution failed for the shared data set 'CustomerDetailsDataSet'.
(rsDataSetExecutionError)
----------------------------
An error has occurred during report processing. (rsProcessingAborted)
I did have a shared dataset named 'CustomerDetailsDataSet'. I opened the query (which was a full SQL query entered in text mode) in SQL Server Management Studio, and ran it there. I got error messages which clearly pointed to a certain table, where a column I had been using had been renamed and changed.
From that point, it was straightforward to modify my query so that it worked with the new column, then paste that modification into the shared dataset 'CustomerDetailsDataSet', and then nudge the report in Report Builder to recognise the change to the shared dataset.
After this fix, my reports no longer triggered this error.
Like many others here, I had the same error. In my case it was because the execute permission was denied on a stored procedure it used. It was resolved when the user associated with the data source was given that permission.
I experienced the same issue, it was related to security not being granted to part of the tables. review your user has access to the databases/ tables/views/functions etc used by the report.
The solution for me came from GShenanigan:
You'll need to check out your log files on the SSRS server for more detail. They'll be somewhere like: "C:\Program Files (x86)\Microsoft SQL Server\MSRS10_50.DEV\Reporting Services\LogFiles\"
I was able to find a permissions problem on a database table referenced by the view that was not the same one as the where the view was. I had been focused on permissions on the view's database so this helped pinpoint where the error was.
I just dealt with this same issue. Make sure your query lists the full source name, using no shortcuts. Visual Studio can recognize the shortcuts, but your reporting services application may not be able to recognize which tables your data should be coming from. Hope that helps.
I had the similar issue showing the error
For more information about this error navigate to the report server on
the local server machine, or enable remote errors Query execution
failed for dataset 'PrintInvoice'.
Solution:
1) The error may be with the dataset in some cases, you can always check if the dataset is populating the exact data you are expecting by going to the dataset properties and choosing 'Query Designer' and try 'Run', If you can successfully able to pull the fields you are expecting, then you can be sure that there isn't any problem with the dataset, which takes us to next solution.
2) Even though the error message says "Query Failed Execution for the dataset", another probable chances are with the datasource connection, make sure you have connected to the correct datasource that has the tables you need and you have permissions to access that datasource.
In my situation, I created a new SSRS report and new stored procedure for the dataset. I forgot to add the stored procedure to the database role that had permission to execute it. Once I added the permissions to SQL database role with EXECUTE, all was fine!
The error message encountered by the user was "An error occurred during client rendering. An error has occurred during report processing (rsProcessingAborted). Query execution failed for dataset "DataSet1'. (rsErrorExecutingCommand) For more information..."
Very grateful I found this great post. As for my case, the user executing the stored procedure did not have EXECUTE permissions. The solution was to grant EXECUTE permissions for the user within the stored procedure by adding below code to the end of the stored procedure.
GRANT EXECUTE ON dbo.StoredProcNameHere TO UsernameRunningreports
GO
I also had a very similar issue with a very similar error message. My issue was that the database could not be connected to. In our case, we have mirrored databases and the connection string did not specify the Failover Partner. So when the database couldn't connect, it never went to the mirror and was throwing this error. Once I specified the Failover Partner in the connection string for my datasource, it resolved the issue.
BIGHAP: A SIMPLE WORK AROUND FOR THIS ISSUE.
I ran into the same problem when working with SharePoint lists as the DataSource, and read the blogs above which were very helpful. I had made changes in both the DataSource and Data object names and query fields in Visual Studio and the query worked in visual Studio. I was able to deploy the report to SharePoint but when I tried to open it I received the same error.
I guessed that the issue was that I needed to redeploy both the DataSource and the DataSet to SharePoint so that that changes in the rendering tools were all synced.
I redeployed the DataSource, DataSet and the Report to sharePoint and it worked.
As one of the blogs stated, although visual studio allowed the changes I made in the dataset and datasource, if you have not set visual studio to automatically redeploy datasource and dataset when you deploy the report(which can be dangerous, because this can affect other reports which share these objects) this error can occur.
So, of course the fix is that in this case you have to redeploy datasource, dataset and Report to resolve the issue.
I was also facing the same issue - I checked below things to fix this issue,
If you have recently changed pointing database-name in data-source
then first check that all the store procedures for that report exist
on changed database.
If there are multiple sub reports on main report then make sure each
report individually running perfectly.
Also check security panel - user must have access to the databases/
tables/views/functions for that report.
Sometimes, we also need to check dataset1 - store procedure. As if you are trying to show the report with user1 and if this user doesn't have the access(rights) of provided (dataset1 database) database then it will throw the same error as above so must check the user have access of dbreader in SQL Server.
Also, if that store procedure contains some other database (Database2) like
Select * from XYZ inner join Database2..Table1 on ... where...
Then user must have the access of this database too.
Note: you can check log files on this path for more details,
C:\Program Files\Microsoft SQL Server\MSRS11.SQLEXPRESS\Reporting Services
I got same error but this worked and solved my problem
If report is connected to Analysis server then give required permission to the user (who is accessing reporting server to view the the reports) in your model of analysis server.
To do this add user in roles of model or cube and deploy the model to your analysis server.
Using SSRS, Report Builder 3.0, MSSQL 2008 and query to an Oracle 11G database,
I found that the oracle stored procedure ran well, produced consistent results with no errors. When I tried bringing the data into SSRS, I got the error as listed in OP's query. I found that the data loaded and displayed only if I removed the parameters (not a good idea).
On Further examination, I found that under dataset properties>parameters I had set the start date to parameterName P_Start and parameter Value to #P_Start.
Adding the Parameter value as [#P_Start] cleared the problem, and the data loads well, with parameters in place.
This problem was caused by an orphaned SQL Login. I ran my favorite sp_fixusers script and the error was resolved. The suggestion above to look at the logs was a good one...and it led me to my answer.
This might be the permission issue for your view or store procedure
In addition to the above answers, it could be due to a missing SQL stored-procedure or SQL function. For example, this could be due to the function not migrating from a non-prod region to the production (prod) region.
Removing all comments from the Select Query fixed this for me. My dataset was working in the Preview but when I went to Design/Query Designer and and tried the query there I was getting ORA-01006;bind variable does not exist. After removing all comments from the select it worked.

Setting up a Entity Framework Code First Database on SQL Server 2008

I successfully created my first Entity Framework Code first project using SQL Server CE. The database tables were created automatically and all was well.
I then changed my connection string to point to a SQL Server database I'd created and expected it to autogenerate the tables. It didn't and instead complained about the tables not existing.
After some reading I found that I needed to add an initializer to my App_Start method.
I tried:
// Method 1
Database.SetInitializer(new DropCreateDatabaseIfModelChanges<EFContext>());
But this didn't work at first because it couldn't find an EdmMetaData table to discover if the model had changed.
So I tried adding:
// Method 2
Database.SetInitializer(new CreateDatabaseIfNotExists<EFContext>());
But this didn't work because I'd already created the database, and when I removed the database it still didn't work because the user I was logging in as didn't have create database privileges.
I finally tried:
// Method 3
Database.SetInitializer(new DropCreateDatabaseAlways<EFContext>());
Which worked, but I don't really want to drop the db every time. So once it ran and added the EdmMetaData table I replaced it with method 1 and that now works fine.
Although this method works, it doesn't feel as elegant as when I was using SQL Server CE and I've not found someone suggesting that you use this method.
So, am I missing something and is there an easier, more elegant way to do this?
Method 1 and 2 expects that database doesn't exist yet. They don't work if you create database manually. If you need EF to create tables in existing database you must create custom database initializer.

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