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  • Entity Framework Many-To-Many with additional field on Joining Table

    - by Cory G
    I have an entity context that includes three tables (see diagram here). The first is a table that contain products, the second contains recipes. The joining table has fields for IDs in both the products and recipes table as well as a 'bit' field called 'featured'. I've searched and found no example on how to insert only how to select against this type of scenario.Does anyone have any suggestions on how this can be done? Thanks in advance for any help. Cory

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  • using group_concat in PHPMYADMIN will show the result as [BLOB - 3B]

    - by Itay Moav
    I have a query which uses the GROUP_CONCAT of mysql on an integer field. I am using PHPMYADMIN to develop this query. My problem that instead of showing 1,2 which is the result of the concatenated field, I get [BLOB - 3B]. Query is SELECT rec_id,GROUP_CONCAT(user_id) FROM t1 GROUP BY rec_id (both fields are unsigned int, both are not unique) What should I add to see the actual results?

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  • tsql getdate conversion

    - by Manjot
    Hi, I know that when i do the following, it converts getdate to int select cast (getdate() as int) Getdate output on my server is "2010-06-11 14:42:20.100" and the int to which the above command is converting to is 40339. What is this integer? Did this int consider minutes and seconds? i am confused. Please help. Regards Manjot

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  • how to get LIKE clause to work in asp.net and mssql

    - by anoob836
    Hi, I am doing a really simple query in asp.net but after I inserted the LIKE clause it stops working. Example: String sql = " SELECT * FROM Products WHERE ID = @MYID AND Name LIKE '%@MYNAME%' "; SqlCommand command = new SqlCommand(sql, cn); If I removed the LIKE it works. Hence I am thinking its to do with the '' quotes? Thanks

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  • JPQL (JPA) search substring

    - by JavaBeginner
    Hi, Im facing simple problem with searching entities by some (sub)string, which they might contain. E.g. I have users user1, usr2, useeeer3, user4 and I will enter to search window "use" and I expect to return user1, useeer3, user4. Im sure you know what I mean now. Is there any construction in JPA (JQPL)? It would be nice to search using WHERE somehow in named queries. Something like "SELECT u FROM User u WHERE u.nickname contains :substring"

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  • UIPopoverController. Is is appropriate to embed a tableViewController within?

    - by dugla
    I am doing an iPad imaging app and I am considering UIPopoverController as my workhorse user interface element. The user will spend most of their time immersed in fullscreen content (in both portrait and landscape). When the user wants to select a different piece of content I want to use UIPopoverController to handle that. Is it appropriate to embed a tableViewController in a UIPopoverController to allow in-place scrolling or am I abusing the intended use of UIPopoverController? Thanks, Doug

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  • problem with filtering the dropdownlist in scroll window

    - by Rahul
    Hi all, Problem with filtering Dropdown list. The scenario is : in scroll window there are two fields Document types and type id: Document type is Dropdown list: As per document type selection type id look should display the values. For ex. If I select quote type from document type and if I open type id look up it should display only quotation in the look window. It should work for all the values of document type drop down list values. Its working fine. The item in the document types are: Quote, Order, Invoice, Return, BackOrder. The problem is after saving the data when I am displaying the same record in scroll window, suppose after displaying document type is QUOTE and document id is QTOARD, and in this position I am changing the document type from dropdown QUOTE to ORDER at this time warning message should c ome this range entered is in valid. Because in database table there is no document QTOARD for ORDER type. The same should work for all the condition. The table name is SOP_ID_Setp and key is SOP Type and DocumentID. For that I have written the Stored procedure : create procedure DocTypeFilter @DocumentType as int, @DocumentID as varchar(30) as --declare --@documentype int, --@documentID varchar(30), select * from sop40200 where soptype=@DocumentType and docid=@DocumentID and I have called this SP in Dropdownlist change event. local long retcode; range clear table SOP_ID_SETP; clear field 'SOP Type' of table SOP_ID_SETP; clear field 'Document ID' of table SOP_ID_SETP; range start table SOP_ID_SETP; fill field 'SOP Type' of table SOP_ID_SETP; fill field 'Document ID' of table SOP_ID_SETP; range end table SOP_ID_SETP; if err()=OKAY then call DocTypeFilter,retcode,'Document Type' of window 'Is_Document Type Site_Scroll','Document ID' of window 'Is_Document Type Site_Scroll'; else warning "The range entered is invalid"; clear window 'Is_Document Type Site_Scroll'; fill window 'Is_Document Type Site_Scroll' table is_sop_site_line_temp; end if; Above code not giving the expected output any help pls.

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  • nslookup for C# and C++ to resolve a host using a specific Server

    - by Shahmir Javaid
    i need to resolve a hostname using a specific DNS server like you would in nslookup C:\>nslookup hotname 192.100.10.10 Server: UnKnown Address: 192.100.10.10 Name: hostname.host Address: 192.100.10.14 But ofcourse in return i dont just want the address i want all the values for Server, Address, Name and Address I have looked at the System.Net.Dns Class but that only gives me the Resolved IP Address and dosent let me select the DNS Server of my choosing If any one has done this before and you can help me with this. it would be great :D Thanks in Advanced

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  • Updating multiple tables at the same time in Linq-to-SQL

    - by kiran
    How do I update two tables at the same time using Linq-to-SQL? var z = from a in db.Products join b in db.ProductSubcategories on a.ProductSubcategoryID equals b.ProductSubcategoryID join d in db.ProductCategories on b.ProductCategoryID equals d.ProductCategoryID select new { ProductName = a.Name, ProductCategory = d.Name, ProductSubCategory = b.Name, Cost = a.StandardCost, discontinuedDate = a.DiscontinuedDate, ProductId=a.ProductID };

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  • Union with LINQ to XML

    - by Ryan Riley
    I need to union two sets of XElements into a single, unique set of elements. Using the .Union() extension method, I just get a "union all" instead of a union. Am I missing something? var elements = xDocument.Descendants(w + "sdt") .Union(otherDocument.Descendants(w + "sdt") .Select(sdt => new XElement( sdt.Element(w + "sdtPr") .Element(w + "tag") .Attribute(w + "val").Value, GetTextFromContentControl(sdt).Trim()) ) );

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  • global member creation

    - by Akash
    how the global members can be created in vc++ 6.0 mfc project. if i select globals option in WizardBar(WizardBar C++ class). then (WizardBar C++ members),it display (No members - Create New Class...). How to create the members for this globals class please give the steps to create.

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  • Invalid parameter number: number of bound variables does not match number of tokens

    - by Alex
    I have a table: 'objects' with few columns: object_id:int, object_type:int, object_status:int, object_lati:float, object_long:float My query is : $stmt = $db->query('SELECT o.object_id, o.object_type, o.object_status, o.object_lati, o.object_long FROM objects o WHERE o.object_id = 1'); $res = $stmt->fetch(); Pdo throw error: SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens When i remove column object_lati or object_long query is work fine.

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  • I'm missing something

    - by Redi
    declare @servername varchar(2000) set @EmriServerit=(select @@servername) declare @dbname varchar(2000) set @dbname ='Test1' declare @Dir varchar(2000) set @Dir='F:\dataclient.sql' exec master.dbo.xp_cmdshell 'osql -E -S ' + @servername+ ' -d ' + @dbname +' -i ' + @Dir It gives me and error: "incorrect sysntax near +" If i don't use variables it works ok. What am i missing! Thanks in advance

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  • Help writing database queries for derby?

    - by outsyncof
    I have a database containing multiple tables (Person, Parents, etc) Person table has certain attributes particularly ssn, countryofbirth and currentcountry. Parents table has ssn, and fathersbirthcountry I'm trying to output the SSNs of all people who have the same countryofbirth as their fathersbirthcountry and also have same currentcountry as fathersbirthcountry. SELECT Person.ssn FROM Person, Parents WHERE fathersbirthcountry = countryofbirth AND currentcountry = fathersbirthcountry; the above doesn't seem to be working, could anyone please help me out?

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  • How to ignore blank elements in linq query

    - by Maestro1024
    How to ignore blank elements in linq query I have a linq query var usersInDatabase = from user in licenseUserTable where user.FirstName == first_name && user.LastName == last_name select user; But if I get here and first_name or last_name is blank then I want to still evaluate the other data item.

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  • hibernate column uniqueness question

    - by Seth
    I'm still in the process of learning hibernate/hql and I have a question that's half best practices question/half sanity check. Let's say I have a class A: @Entity public class A { @Id @GeneratedValue(strategy=GenerationType.AUTO) private Long id; @Column(unique=true) private String name = ""; //getters, setters, etc. omitted for brevity } I want to enforce that every instance of A that gets saved has a unique name (hence the @Column annotation), but I also want to be able to handle the case where there's already an A instance saved that has that name. I see two ways of doing this: 1) I can catch the org.hibernate.exception.ConstraintViolationException that could be thrown during the session.saveOrUpdate() call and try to handle it. 2) I can query for existing instances of A that already have that name in the DAO before calling session.saveOrUpdate(). Right now I'm leaning towards approach 2, because in approach 1 I don't know how to programmatically figure out which constraint was violated (there are a couple of other unique members in A). Right now my DAO.save() code looks roughly like this: public void save(A a) throws DataAccessException, NonUniqueNameException { Session session = sessionFactory.getCurrentSession(); try { session.beginTransaction(); Query query = null; //if id isn't null, make sure we don't count this object as a duplicate if(obj.getId() == null) { query = session.createQuery("select count(a) from A a where a.name = :name").setParameter("name", obj.getName()); } else { query = session.createQuery("select count(a) from A a where a.name = :name " + "and a.id != :id").setParameter("name", obj.getName()).setParameter("name", obj.getName()); } Long numNameDuplicates = (Long)query.uniqueResult(); if(numNameDuplicates > 0) throw new NonUniqueNameException(); session.saveOrUpdate(a); session.getTransaction().commit(); } catch(RuntimeException e) { session.getTransaction().rollback(); throw new DataAccessException(e); //my own class } } Am I going about this in the right way? Can hibernate tell me programmatically (i.e. not as an error string) which value is violating the uniqueness constraint? By separating the query from the commit, am I inviting thread-safety errors, or am I safe? How is this usually done? Thanks!

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  • Create flow diagram programmatically

    - by Julian Lettner
    I want to visualize components and connections of a HVAC system with .NET/C#. The diagrams will just include a few different components and their connections. They do not have to comply to any formal standard and should look alike the diagrams attached. In addition the user should be able to select a single component/connection (so that I can display additional data). Which free drawing/charting library would you use and why? Thanks for your time.

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