I working on website and i have ready database from the company database. I have a table Location has only two fields : city andtate.I tried to get select the * city where state = something , but i think it is wrong,Is it a Many-to-Many realtionship
View 4 RepliesI have a database which contain job ads/ I have one table "dbo.tbl_jobadvert" which contains the ad itself and another table "dbo.tbl_jobFiles" which contains the path of the documents uploaded in relations to the job advert ( application form, job description, etc )
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i have master table and it has related record in the child record
there are about four records in the detail table containing master id
how can i get the data group by master id ?? i want a sing row record
suppose:
order 1: item1 : item :2 item 3: item 4 in this shape
I have 2 tables. Table_A has one to many relationship with Table_B.
For example. Table_A has an ApplicantKey and in Table_B I am storing (Resume_name and CoverLetter_name for the Applicant). Joined by ApplicantKey
Now when I join them and execute the query obviously it returns me two rows. But what I want is that it should return only one row with Columns like Resume_name, CoverLetter_Name
I need to know if I've done something wrong, or if the message I'm getting is nothing about which to be alarmed.I'm getting "The relationship '....' has columns that are not part of the key of the table on the primary side of the relation ship which is not supported, the relationship was excluded.
I built four tables, each with one foreign key. I'm assuming I haven't done anything wrong or unusual with my four tables (SQL statements generating the tables are shown below).However, I don't get any lines connecting tables together and all the examples I've seen today seem to have no problem with drawing the connecting lines all over the place.
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I have two tables - dt(Mods) and dt(Mods2) - I am trying to create a relationship between them. So dt(mods) has department, category and item columns dt(mods2) has parentDept, Parentcategory and parentItems Now I need add them to a dataset with a relationship key - Something like this but with three cloumns
Dim ParentCol As New DataColumn, ChildCol As New DataColumn
I have 3 tables User, role and UserInRole THe entity frame work made entities for User and Role and I have successfully made a join with the user and role entities using user.add(role); but I can't seem to get it to remove the link (I want to retain the user and role just remove their association).
using (ProviderEntities context = new ProviderEntities())
{
User u = context.User
.Where(n => n.ApplicationName == application)
.Where(n => n.Username == username).First();
Roles r = context.Roles
.Where(n => n.ApplicationName == application)
.Where(n => n.RoleName == roleName)
.First();
r.User.Remove(u);
context.SaveChanges();
}
The oposite worked when I did r.User.Add(u); but it wont let me now remove it after it been created. Driving me mad as I can't see where I have gone wrong.
I think I'm just after advice on best practice with this! I have a database which has 2 tables. The first table has ID, Name, Address and the second table has ID and JobType. Table 02 can list multiple types of JobType so we could have
Table01:
1. D Smith. Address01
2. S.Jones. Address02
Table02
1. Accounts
1. Sales Ledger
1. Chartered Accountant
2. IT
2. Web Design
2. Graphic Design
2. 1st line support
A join gets them together and all works perfectly.However, the content will be updated when some one fills in a web form. Do get the form to send results to both tables, I assume I have to open the database twice or can I open it once and open each table one at a time? I know I could practice this and not ask the question but I am interested to know what is the most efficient way. I would also need to know what ID to use. So when I populate Table02 it uses the correct ID from Table01. At the moment Table01 ID field is incremented automatically. Would you suggest I always assign the ID myself, or would I need to query the database, find out what ID number is currently in use and then increment it by 1 and assign the new number to an ID variable which then populates the Table's Field? In which case, am I opening the database again or trying to perform all 2/3 stages in one go?
I have my membership provider configured and working on my web host.
IŽd like to create a table, for example, table ARTICLES, and iŽd like that the user logged in, his ID or his NAME, was inserted into my ARTICLES database.Which one is the best table i could get for doing that ?
I was checking the table aspnet_users, but its Primary Key has a uniqueidentifer type.This wonŽt be a problem in the future ?Or is there a better way to relate my table with the membership provider ? Maybe another table OR another field.
I've just taken over looking after a website and well to be honest the way it's been put together is not the best, but I have to make do as the client does not have the money to make major changes.Anyway currently there is data stored in a MsSQL database and some in an XML file. The xml file does have a ContentID attribute which matches the ContentID in a table.Not really done much with XML as I tend to use a database and LINQ.What would be the best way to tie these two together so I could output the results in a gridview for example.
View 2 RepliesI have a table with number fields, one of which is location. What I want is a select command which put all records for the selected location first then adds all the others on the end in what ever order they occur.
View 1 RepliesI have two tables as below.
I tried to establish a relation between two tables in such a way that Table_Contracts will still accept NULL values for [PO_No], but [PO_No] on TableContract will be automatically updated when [PO_No] on Table2_PONo changed. Moreover, if you want to delete a record on Table2_PONo, it needs to be stopped if there is a related data in Table_Contracts.
I set a relation with these parameters:
Check existing data on creation or re-enabling>
No
Enforce for replication>
No
Enforce foreign key constraint>
No
Delete Rule>
No Action
Update Rule>
Cascade
I got this error
Introducing FOREIGN KEY constraint 'FK_Table_Contracts_Table2_PONo' on table 'Table_Contracts' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.
Table2_PONo
[PO_No]
(primary key)
[Project_ID]
[SupplierID]
[Description]
[TotalPrice]
[PO_Currency]
[VATpercent]
[CostCode]
[Notes]
[PO_Date]
[Reality]
[UpdatedBy]
[FromAccess]
Table_Contracts
[ContractID]
[ProjectID]
[PO_No]
(accepts null values)
[ContractNo]
[ContractDate]
[ContractValue_woVAT]
[ContractCurrency]
[SupplierID]
[ContractDescription]
[ContractType]
[LinkToTemplatefile_DOC]
[SentToSupplier]
[SignBySupplier]
[SignByMercury]
[CollectionBySupplier]
[LinkToPDFcopy]
[ArchivedByMercury]
[UpdatedBy]
[Retention]
[Note]
I have this simple project which needs to show location on a google map by pulling data from the DB.I am using asp.net, mysql DB, google map and i found out from some website that i needed to use ajax.
The process is like this
1. I have a event form where i have multiple fields to fill in and it includes a Location/Venue fields which i can enter a location by Name(Not the Co-ordination). I am located in Singapore. So all fields will be stored into the DB.
2. I have a webpage displaying a table of the data from the same DB, and it comes with a embedded Google Map. On the table, the value of the Location column will be Hyperlinked, and when i click it, it will act as a search query in the embedded google map and locate the address without reloading the page again(which i believe i gotta use iframe?)
I have a table in my database, in which a certain field holds the locations of text or doc files (the files are of a transcript for a chat session).
In the Gridview right now i able to show the link locations. But i want to have Hyperlink or Button in the links location in the Transcript Location fields.And on the click of which the txt or doc file opens up in notepad or microsoft word.
I have a code that read all data from sqldatasource and store it in exel file. my problem is,when the program run when i click on button,the message pop up to open or save, so by click on open or save we can either save it in exel file or open and look in exel file.
i want withought poping any message,it store the file directly to the specific folder without infomring the user.
here is my code
string attachment = "attachment; filename=Contacts.xls";
Response.ClearContent();
Response.AddHeader("content-disposition", attachment);
Response.ContentType = "application/ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
GridView1.RenderControl(htw);
Response.Write(sw.ToString());
Response.End();
a FormView that is linked to SqlDataSource1a Repeater control (inside the formview) that is linked to SqlDataSource2 Thus representing a simple "1 to many" or "parent/child" relationship in the database!
SqlDataSource1 is simple in that it just retrieves a straight set of records from a table and they are displayed back in the FormView (nothing special happening there).
SqlDataSource2 has parameters that filter the contents of the repeater based on the record that is shown in the Formview. This would normally be simple enough to set up by setting the parameter to the formview.selectedvalue property.
HOWEVER - THE PROBLEM ARISES...
The formview has multiple DataKeyNames because the table that the SqlDataSource1 links to has a compound key. So to filter the Repeater correctly SqlDataSource2 needs to map 3 parameters to 3 data key values in the formview.
I've tried setting the SqlDataSource2 parameters to:
<SelectParameters>
<asp:ControlParameter ControlID="FormView1" Name="Parameter1" PropertyName="DataKey(0)" />
<asp:ControlParameter ControlID="FormView1" Name="Parameter2" PropertyName="DataKey(1)" />
<asp:ControlParameter ControlID="FormView1" Name="Parameter3" PropertyName="DataKey(2)" />
</SelectParameters>
but it doesn't seem to like that approach. I'm expecting the answer is something similar .
how can i select a record from A table and insert into B table using linq?
View 2 RepliesBasically i deal with two tables.i have a table T1 of the following format:id company_name i need to read this data and create a table T2 as followsi wrote the following code. it worked fine for retrieving data and modification but fails to insert the modified data into the 2nd table.the error is, it does not recognise the value for @token
ArrayList dynarr=new ArrayList(); // global variable
protected void Button2_Click(object sender, EventArgs e)
{
int row = 1; int i;
string strcmd = null;
string Connection = "Data Source=....";
SqlConnection conn = new SqlConnection(Connection);
string str = "select company_name from T1 where ID=@ID";
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I have two tables - Student and Advert.
I want to do the following;
1. Student is logged into their account (session is authenticated)
2. StudentID is primary key for that table, it is a foreign key for table Advert
3. When student is logged in, they create advert
What I want is their student Id to be input into the advert table when this new advert is created. How is this possible?
I'm assuming I need to use a pivot table from what I've found so far. However, every one that I've seen has not had the date setup like I have.
I have a Gridview on my page which I need to be populated like so
Date NCMR
1/1/10-1/31/10 #
2/1/10-2/28/10 #
I want to do this for 10 months... bottom record being the current month (or last month). I would also like the Date to format to January 2010 I used the above date format because that is how it is in the table. Basically, I need to know how to create the pivot table to search the table for 1/*/10, 2/*/10, etc
I'm sure this has been answered many times already, but I still can't seem to find exactly how to search for this issue, so apologies in advance.
Anyway, I have a VB script for entering a row of data into a table by a web user. When this row of data is entered, I wish to take some of the values from the columns of the "primary" table, and have that data automatically create a new row of data in a "secondary" table. I think I'm part of the way there, here is my script:
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"ProductsByMfr" is the "primary" table - the table that the user adds data into when the button click event is fired.
"DealerPricing" is a "secondary" table that I wish to have some of the data from the newly-entered row in ProductsByMfr copied into. Am I even close here?
On a website such as Amazon, they usually have a prodcut description which is normally 2 - 3 paragraphs of description. Would these information be stored on a database, or would they use include files for those sections, would it be stored in an XML file? I have a website which stores everything in a database and for most of it the website works. EG, in my database, I have a table with Column Names such as ISBN Number, Book Name, Publisher Name and all of which don't go above 50 characters! In some cases, the descriptions go on and on over several paragraphs. Where should this be stored? In the table or in another location which the database references?
View 3 RepliesI'm trying to update one my my tables from a field in another table.
I have Address fields on both tables and the old table has some addresses I need to copy over (I dont want to copy/paste or type them all in obviously). I basically need to:
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how to copy from one table to another table in dataset using c#
View 2 RepliesHow i use primary key table & foreign key table data for retriving the data with each other.I had make both table i confuse how to use it.
View 1 Replies