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  • Entity framework: Need a easy going, clean database migration solution.

    - by user469652
    I'm using entity framework model first development, and I need to do database migration often, The EF database generation power pack doesn't help a lot, because that data migration never worked here. The database migration here I mean, change the model, and then I can update the existing database from the model, but creating a new one. Is there any free of charge tool here invented here yet? Or would this going to be a new feature of next EF release? PS: I love django's ORM.

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  • How do I generate Entity Framework 4.0 classes from the command line that have different names than

    - by Josh Kodroff
    I want to generate Entity Framework 4.0 classes from a (legacy) database from a command line, but I have 2 transformations I want: Tables/columns are lowerCamelCase and I want my classes/members to be UpperCamelCase. I want to suffix my classes with "Dto". Any idea how this might be accomplished? I'm a total newbie to EF, but I have a decent understanding of Linq to Sql and was able to accomplish the same task by doing: sqlmetal - dbml - xml mapping file and .cs file.

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  • SQL server 2008 backup error

    - by c11ada
    can any one help me, im trying to backup a database located on localhost\SQLEXPRESS but i keep getting the following error TITLE: Microsoft SQL Server Management Studio Backup failed for Server 'localhost\SqlExpress'. (Microsoft.SqlServer.SmoExtended) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=10.0.2531.0+((Katmai_PCU_Main).090329-1045+)&EvtSrc=Microsoft.SqlServer.Management.Smo.ExceptionTemplates.FailedOperationExceptionText&EvtID=Backup+Server&LinkId=20476 ADDITIONAL INFORMATION: System.Data.SqlClient.SqlError: Cannot open backup device 'C:\backup.bak'. Operating system error 5(failed to retrieve text for this error. Reason: 15105). (Microsoft.SqlServer.Smo) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=10.0.2531.0+((Katmai_PCU_Main).090329-1045+)&LinkId=20476 can any one explain what im doin wrong here ?? thanks

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  • How to ThinApp a Database Application & SQL Server 2005

    - by dandan78
    To make it easier for potential clients to try out our software without having to go to the trouble of installing SQL Server, a test database, setting up an ODBC connection and so on, we want to package the whole thing with VMWare ThinApp. Ideally, there'd be a single executable and all the user would have to do is run it. I've been reading up on ThinApp on the VMWare website but am still unsure how to go about doing this. Is the correct approach to put SQL Server and the application in separate packages, reverting to a clean version of the virtual enviroment prior to each packaging? That seems somewhat problematic because the app needs the DBMS to run, as well as an ODBC connection. Like I said, we'd prefer to go with a single package (package = executable?), but two executables are also acceptable if an alternative can't be found. I realize that the same result can probably be achieved by way of a custom SQL Server Express installation but ThinApp looks like a better and more elegant solution.

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  • LINQ To SQL exception: Local sequence cannot be used in LINQ to SQL implementation of query operator

    - by pcampbell
    Consider this LINQ To SQL query. It's intention is to take a string[] of search terms and apply the terms to a bunch of different fields on the SQL table: string[] searchTerms = new string[] {"hello","world","foo"}; List<Cust> = db.Custs.Where(c => searchTerms.Any(st => st.Equals(c.Email)) || searchTerms.Any(st => st.Equals(c.FirstName)) || searchTerms.Any(st => st.Equals(c.LastName)) || searchTerms.Any(st => st.Equals(c.City)) || searchTerms.Any(st => st.Equals(c.Postal)) || searchTerms.Any(st => st.Equals(c.Phone)) || searchTerms.Any(st => c.AddressLine1.Contains(st)) ) .ToList(); An exception is raised: Local sequence cannot be used in LINQ to SQL implementation of query operators except the Contains() operator Question: Why is this exception raised, and how can the query be rewritten to avoid this exception?

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  • Visual Studio and SQL Server - correct installation sequence?

    - by cdonner
    I am rebuilding my development machine. This issue is not new to me, but I don't remember the solution. I started with VS 2008 Pro, then SQL 2008 Developer, then the SQL SP1, then VS SP1. The result is that I cannot open SSIS projects (see the error below). What is the correct order so that I can avoid the installation of SQL Server Express and still have all the features working? --------------------------- Microsoft Visual Studio --------------------------- Package Load Failure Package 'DataWarehouse VSIntegration layer' has failed to load properly ( GUID = {4A0C6509-BF90-43DA-ABEE-0ABA3A8527F1} ). Please contact package vendor for assistance. Application restart is recommended, due to possible environment corruption. Would you like to disable loading this package in the future? You may use 'devenv /resetskippkgs' to re-enable package loading. --------------------------- Yes No ---------------------------

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  • java.sql.SQLException: SQL logic error or missing database

    - by Sunil Kumar Sahoo
    Hi All, I ahve created database connection with SQLite using JDBC in java. My sql statements execute properly. But sometimes I get the following error while i use conn.commit() java.sql.SQLException: SQL logic error or missing database Can anyone please help me how to avoid this type of problem. Can anyone give me better approach of calling JDBC programs Class.forName("org.sqlite.JDBC"); conn = DriverManager.getConnection("jdbc:sqlite:/home/Data/database.db3"); conn.setAutoCommit(false); String query = "Update Chits set BlockedForChit = 0 where ServerChitID = '" + serverChitId + "' AND ChitGatewayID = '" + chitGatewayId + "'"; Statement stmt = null; try { stmt.execute(query); conn.commit(); stmt.close(); stmt = null; } Thanks Sunil Kumar Sahoo

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  • java.sql.SQLException: SQL logic error or missing database, SQLite, JDBC

    - by Sunil Kumar Sahoo
    Hi All, I ahve created database connection with SQLite using JDBC in java. My sql statements execute properly. But sometimes I get the following error while i use conn.commit() java.sql.SQLException: SQL logic error or missing database Can anyone please help me how to avoid this type of problem. Can anyone give me better approach of calling JDBC programs Class.forName("org.sqlite.JDBC"); conn = DriverManager.getConnection("jdbc:sqlite:/home/Data/database.db3"); conn.setAutoCommit(false); String query = "Update Chits set BlockedForChit = 0 where ServerChitID = '" + serverChitId + "' AND ChitGatewayID = '" + chitGatewayId + "'"; Statement stmt = conn.createStatement(); try { stmt.execute(query); conn.commit(); stmt.close(); stmt = null; } Thanks Sunil Kumar Sahoo

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  • Using variable from Code-behind in SQL Query, asp.net C#

    - by Carl
    I am trying to use a variable from the code-behind page in a sqlDataSource WHERE statement. I am using Membership.GetUser().ProviderUserKey to obtain the UserId of the logged in user and I would like to only show record that have this UserId as a foreign key. How can I write the SQL for this? Thanks much, Carl Here is what I have so far: SQL Query: SelectCommand="SELECT [UserID], [CarID], [Make], [Model], [Year] FROM [Vehicle]" Code-Behind String user2 = ((Guid)Membership.GetUser().ProviderUserKey).ToString(); And I want to add WHERE UserID = user2 to the SQL Query.

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  • SQL WHERE clause not returning rows when field has NULL value

    - by JohnB
    Ok, so I'm aware of this issue: When SET ANSI_NULLS is ON, all comparisons against a null value evaluate to UNKNOWN SQL And NULL Values in where clause SQL Server return Rows that are not equal < to a value and NULL However, I am trying to query a DataTable. I could add to my query: OR col_1 IS NULL OR col_2 IS NULL for every column, but my table has 47 columns, and I'm building dynamic SQL (string concatenation), and it just seems like a pain to do that. Is there another solution? I was to bring back all the rows that have NULL values in the WHERE comparison. UPDATE Example of query that gave me problems: string query = col_1 not in ('Dorothy', 'Blanche') and col_2 not in ('Zborna', 'Devereaux') grid.DataContext = dataTable.Select(query).CopyToDataTable(); (didn't retrieve rows if/when col_1 = null and/or col_2 = null)

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  • SQL: Return "true" if list of records exists?

    - by User
    An alternative title might be: Check for existence of multiple rows? Using a combination of SQL and C# I want a method to return true if all products in a list exist in a table. If it can be done in all in SQL that would be preferable. I have written a method that returns whether a single productID exists using the following SQL: SELECT productID FROM Products WHERE ProductID = @productID If this returns a row, then the c# method returns true, false otherwise. Now I'm wondering if I have a list of product IDs (not a huge list mind you, normally under 20). How can I write a query that will return a row if all the product id's exist and no row if one or more product id's does not exist? (Maybe something involving "IN" like: SELECT * FROM Products WHERE ProductID IN (1, 10, 100))

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  • Slow SQL Sync with Microsoft Sync Framework on Mobile Client

    - by Malkier
    Hello, we are developing an application which uses MS Sync Framework to sync data between Windows CE 6.0 with SQL CE 3.5 SP1 Clients and an SQL 2008 Database. Our major problem is a slow sync time up to 1 minute for 15 tables which are totally empty. Here's a break down of our components: Server: Sql Server 2008 15 tables with activated change tracking WCF Service with endpoint for the mobile sync (uses Sync Framework 2.0) Client (Mobile) Windows CE 6.0 NET Application using Sync Framework for Devices (CTP 1) which starts the sync As I mentioned above, the sync takes up to 1 minute without any changes and empty tables. The mobile device is in its dock. This is a deal breaker for a production environment. Does anybody have any experience in this field? Is there a way to improve things? Thanks for any responses.

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  • insert a BLOB via a sql script ?

    - by David Michel
    Hi, I have an H2 database (http://www.h2database.com) and I'd like to insert a file into a BLOB field via a plain simple sql script (to populate a test database for instance). I know how to do that via the code but I cannot find how to do the sql script itself. I tried to pass the path , i.e. INSERT INTO mytable (id,name,file) VALUES(1,'file.xml',/my/local/path/file.xml); but this fails. Within the code (java for instance), it's easy to create a File object and pass that in, but directly from a sql script, I'm stuck... Any idea ? David

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  • Code Alignment In SQL SERVER 2005

    - by user294488
    I am using SQL SERVER MANAGEMENT STUDIO. I want to know the shortcuts for easily aligning the T-SQL Queries and codes in a beautiful format for easy readability and understandablility. Please Let me know how to align the code without using any SQL SERVER FORMATTING / ALIGNING Tools. It is Urgent, Waiting for your kind reply at the earliest possible. Please do give your valuable tips to align the same, right now to align the code i mean to make the code right and left aligned i m using the TAB and SPACE BAR key which becomes very difficult when the length of code is increasing.

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  • Invoke or BeginInvoke cannot be called on a control until the window handle has been created.

    - by blade3
    Hi I am trying to install SQL Server 2008 Developer Edition x64 on a Windows Server 2008 VM. I run the installer for a standalone installation and this works fine for the setup support rules bit. That passes ok but then I get this error: TITLE: SQL Server Setup failure. SQL Server Setup has encountered the following error: Invoke or BeginInvoke cannot be called on a control until the window handle has been created.. BUTTONS: OK How can I resolve this? I am getting 2008 R2 CTP but this is just a CTP. My download is from DreamSpark. Thanks

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  • FluentNHibernate SQL Server 2005/2008 Setup Tutorial

    - by Abe
    Hello! Does anybody know of any good tutorials that show how to configure FluentNhibernate for SQL Server 2005/2008. The ones I have found usually just use SQLite, but I would like to see one that specifically targets SQL Server 2005/2008. I really liked the sample tutorial on the FluentNhibernate website (http://wiki.fluentnhibernate.org/Getting_started#Your_first_project), but it looks like most tutorials I have found seem to only deal with SQLite. It would be great to see a working tutorial that deals with the more common databases in real world applications like SQL Server 2005/2008, MySQL, etc Thanks!

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  • Connect rails application to SQL Server 2005 from Windows

    - by Enrico Carlesso
    Hi guys. I (sadly) have to deploy a rails application on Windows XP which has to connect to Microsoft SQL Server 2005. Surfing in the web there are a lot of hits for connect from Linux to SQL Server, but cannot find out how to do it from Windows. Basically I followed these steps: Install dbi gem Install activerecord-sql-server-adapter gem My database.yml now looks like this: development: adapter: sqlserver mode: odbc dsn: test_dj host: HOSTNAME\SQLEXPRESS database: test_dj username: guest password: guest But I'm unable to connect it. When I run rake db:migrate I get IM002 (0) [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified I'm not a Windows user, so cannot understand really well the meaning of dsn element or so. Does someone have an idea how to solve this? Thanks in advance With Alexander tips now I've modified my database.yml to: development: adapter: sqlserver mode: odbc dsn: Provider=SQLOLEDB;Data Source=SCADA\SQLEXPRESS;UID=guest;PWD=guest;Initial Catalog=test_dj;Application Name=test But now rake db:migrate returns me: S1090 (0) [Microsoft][ODBC Driver Manager] Invalid string or buffer length Am I missing something?

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  • SQL CE unspecified error

    - by Ruben Trancoso
    Hello, I did a project with MS SQL Server CE that when installed in the 'costumer' machine just raises an unspecified excpetion. Did some research and looks like I did everything mentioned. The dev env has sql compact 3.5 installed and sql tools for vs 2005. Using dotNet 3.5. But to make it run in de dev machine I need to add the sqlcese30, sqlceqp30, sqlceme and sqlcecompact30 dlls and its works fine. The setup project put dotNet 2.0 as dependecy and I also added the dlls but it raises the exception and I cannot see where or what it is. Its just a single 'unspecified error' message. please help :)

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  • Fine tune some SQL called multiple times

    - by Carl
    Hi all, I currently have an SQL query which is currently called multiple times like this (pseudo code): foreach(KeyValuePair kvp in someMapList) { select col1 from table where col2 = kvp.key and col3 = kvp.value; //do some processing on the returned value } The above could obviously call the database a large number of times if it is a big list of pairs. Can anyone think of a more efficient piece of SQL which could essentially return a list of specific values based on a list of two unique pieces of information so that the processing can be done in bulk? One obvious one would be to build up a big piece of SQL with ORs but this would probably be quite inefficient? Thanks Carl

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  • Connecting to sql server database mdf file without installing sql server on client machine ?

    - by Shantanu Gupta
    I am creating a window application that need to use sql server database. I want to install this application to client machine without installing sql server so that my application can still connect to a database i.e mdf file that i will be providing at client system. How can i connect to a database(mdf) on client machine through my window application without installing sql server. ? I dont know is it possible or not. If possible what will be the connection string in that case. Database need not be used in network. Client mahine dont need any installation. Every thing needs to be run through pen drive

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  • SQL 2008 SMO Database Status property memory leak.

    - by AKoran
    It appears there is a memory leak in the Status property of the SMO Database class. Using the code below with SQL 2005 SMO libraries works fine, but as soon as you use SQL 2008, the memory leak appears.... Any other good way of getting the database staus in SQL 2008? A quick example that magnifies the problem: private void button1_Click(object sender, RoutedEventArgs e) { for (int x = 0; x < 100; x++) { CheckStatus(); } } private void CheckStatus() { Server server = new Server("YourServer"); DatabaseCollection dbc = server.Databases; if (dbc.Contains("YourDatabase")) { DatabaseStatus dbStatus = dbc["YourDatabase"].Status; } }

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