DataSource Controls :: Unique Columns In A Northwind Database

Apr 6, 2010

im creating a database that needs a unique constraint on columns. does anyone know how to add this within the northwind database?

View 4 Replies


Similar Messages:

DataSource Controls :: Where To Find The Northwind Database And Add To Sqldatabase

Jan 12, 2010

i need the northwind databse. i dont have it in the database where i can find it and who to add it to my database in sql server so can i c it in the combo box off the database

View 1 Replies

DataSource Controls :: Attaching Northwind Database With Sql Server 2005

Mar 12, 2010

i was attaching northwind database with sql server 2005 so while attaching it gives me an error an exception occured while executing a transct -sql statemnet or batch ,unable to eon physical file "C:sql server 2000 sample database orthwnd.mdf"

View 6 Replies

DataSource Controls :: Columns Don't Currently Have Unique Values?

May 3, 2010

I am returning a dataset from a method and trying to set one of the columns as Primary Key.

CategoryList.Tables[0].PrimaryKey = new DataColumn[] { CategoryList.Tables[0].Columns["CategoryNodeId"] };

Interestingly it gives me this error at run-time, These columns don't currently have unique values.

Now I perfectly know why this error should error, but there are no duplicate keys in this data column. I broke the code in between and bound the dataset to gridview to check if this column contains any duplicates and this is not the case. Here is the result set underneath. Have a look at the first column 'CategoryNodeId'.

CategoryNodeId
CategoryId
Name
ParentCategoryNodeId [code]...

unable to find a work around for now.

View 3 Replies

DataSource Controls :: Removing Duplicates From Two Similar Columns Or Any Other Columns In A Database Schema

Apr 21, 2010

I have two columns first name and last name , that have duplicates, how can i remove the duplicates and only leave the distinct members intact?

View 6 Replies

DataSource Controls :: "These Columns Don't Currently Have Unique Values"

Apr 25, 2010

This is my C# code where i'm trying to fill my dataset from a stored procedure:

[Code]....

My stored procedure:

[Code]....

This a screen shot of my EquipmentStatus Table. The Error occurs when i add new record with the same Fk_MeetRoom, which i need to do when i add a new Equipment. How can i solve this problem? I've tried to use EquipID (alias for EquipmentStatus.ID) when creating the relation in the dataset, but i still get the error.

View 6 Replies

DataSource Controls :: Generate A Unique Ref Number And Insert Into The Database

Jul 5, 2010

I am generating a unique Ref number using this sql statement: SELECT REPLACE(STR(CAST(CAST(NEWID() AS binary(5)) AS bigint),12),0,0) as REF Subsequently, I need to insert this REF into sql database table in stored procedure. Here is what I did in my stored procedure:

USE [iBankRecords]
GO
/****** Object: StoredProcedure [dbo].[stp_addPayee] Script Date: 07/05/2010 21:57:07 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROC [dbo].[stp_addPayee]
(
@CUSTID char(10),
@PAYEEACCNUM nvarchar(20),
@PAYEEACCTYPE char(10) ,
@PAYEENAME char(20),
@PAYERINITIAL char(20),
)
AS
DECLARE
@ReturnValue int
INSERT INTO PAYEE (CUSTID, PAYEEACCNUM,PAYEEACCTYPE,PAYEENAME,PAYERINITIAL, REF)
VALUES (@CUSTID,@PAYEEACCNUM,@PAYEEACCTYPE,@PAYEENAME,@PAYERINITIAL, REF)
IF @@ERROR<>0
BEGIN
PRINT 'ERROR'
SET @ReturnValue=1
RETURN @RETURNVALUE
END
ELSE
BEGIN
SET @ReturnValue=0
RETURN @RETURNVALUE
END

May I know how do I have generating a unique ref num and inserting the REF into the above statement?

View 1 Replies

DataSource Controls :: Where To Download Northwind For SQL Server 2005

May 20, 2010

Where can you download Northwind for SQLServer 2005? I tried this but there is no Northwind after the install... [URL]

View 1 Replies

DataSource Controls :: How To Retrieve Declared Product Details From Northwind With Linqdatasource

Nov 25, 2010

I wan to retrieve spesific data from northwind and list in my compare page.

in the first page i used gridview with checkboxes. all selected values get with session and then

send to my second page. I can display this values in the page but how can i retrieve all product details from my northwind db i dont know.

here is my second page code behind.

[Code]....

and aspx page

[Code]....

View 3 Replies

DataSource Controls :: No Of Tables And Columns In Database?

Jun 15, 2010

I want to know that how many tables we can have in database and what is the maximum no. of columns.I also want to know the maximum size for each datatype.

View 3 Replies

DataSource Controls :: Access Layer - Northwind Tutorial - Unable To Find The NorthwindTableAdapters.ProductsTableAdapter Class

Mar 31, 2010

I've been attempting to walk through the "Creating a Data Access Layer" tutorial found [URL] I create the DB connection, create the typed dataset and table adapter, specify the sql, etc. When I add the code to the presentation layer (in this case a page called AllProducts.aspx) I am unable to find the NorthwindTableAdapters.ProductsTableAdapter class. I tried to import the NorthwindTableAdapters namespace, but it is not showing up. Looking in the solution explorer Class View confirms that there is a Northwind class, but not the namespace I'm l ooking for. I've tried several online tutorials that all have essentially the same steps, and I'm getting the same results.

View 1 Replies

DataSource Controls :: Dynamically Adding Columns To A Table In The Database?

Jun 29, 2010

I wanted to know if it is possible to dynamically add columns to a table in the Database?I know how to create a table dynamically in the DB the code for it is given below, howver I do not know, how do I add columns to it dynamically.

Dim NewTable As String = "CREATE TABLE Dynamic " +
" (" +
" job_id smallint" +
" IDENTITY(1,1)" +[CODE].....

View 7 Replies

DataSource Controls :: Refer To Datatable Columns With Database Column Names?

May 28, 2010

[Code]....

Refer to datatable columns with database column names?

View 3 Replies

DataSource Controls :: Search Various Database Columns Based On User's Input?

Nov 18, 2010

I have five textboxes(tb1, tb2, ... tb5) on the page, each textbox represent a column in the database table.

I need to search the database table based on the text in the textboxes. User can either enter text in all five textboxes or none.

What's the best way to do a search?

I am thinking for one textbox(tb1), depends on if tb1.text is empty or not, I need to do 2 searches

[Code]....

for two textboxes(tb1 & tb2), depends on if tb1.text and/or tb2.text are empty or not, there are 4 combinations, so I need to do 4 searches

[Code]....

for three textboxes, there are 8 combinations,

Does that mean for five textboxes, I need to do 2 to the power of 5, 32 combinations, 32 if statements?

View 1 Replies

SQL Server :: Simple Union Query / From Northwind Database

Aug 4, 2010

I am a .net developer.I am not that strong in SQL.I need a simple query.This is from Northwind Database.

select 'Select All' as CustomerID,'Select All' as City union(select CustomerID, City from Customers
order by City)

i need to get output like 1st row should be Select ALl Select All and next rows should be output of this stat..(select CustomerID, City from Customers order by City)

i am not getting this...i can do by keeping the second query result in temp table and then using union... but i am looking without temp tables or simple query.

View 2 Replies

Visual Studio :: Northwind Database Not Showing Up In VWDE2008 Add Connection Box

Mar 5, 2010

I am a complete newbie when it comes to ASP.NET and SQL database access. I'm trying to learn so that I might become gainfully employed one day soon and better my life. I'm running through the Visual Web Developer Express 2008 beginning walkthroughs right now and I'm already stuck on the third one -- Walkthrough: Basic Data Access in Web Pages. I've installed MS SQL Server 2008 and downloaded the sample Northwind and pubs databases, and even (I think) attached the pre-built files using the DOS command: sqlcmd -S .SQLEXPRESS -i instnwd.sql. (Output was: Changed database context to 'master'. Changed database context to 'Northwind'.)

But, now, when I try to Add Connection through the Database Explorer in VWDE2008, nothing comes up in the Connect to a Database field. Shouldn't it auto-populate? If I'm supposed to manually type a name in there, what should it be? I've tried "Northwind" and "SQLEXPRESS" with no luck (getting a generic Unable to Connect message). I've verified the database is running with SQL Server Configuration Manager and that all Client Protocols are enabled.

View 1 Replies

Find Unique Words In One Or More Columns?

Jan 17, 2011

I'm looking at implementing tags in my ASP.NET website. After looking at several algorithms, I'm leaning towards having a couple of database columns that contain one or more tag words. I will then use full-text search to locate rows with specified tags.

All of this seems pretty straight forward except for one thing: I need to be able to generate a list of available tags, which the user can select from.

I know I can write a C# program to build the list of available tags, and then run it once every week or so, but I was just wondering if there's any SQL-method for doing stuff like this more efficiently.

Also, I can't help but notice that the words will be extracted anyway as part of building the full-text index. I don't suppose there's any way to access that information?

View 2 Replies

DataSource Controls :: SQL Statement / Don't Have Any Unique Identifier?

Mar 11, 2010

I am just wondering how do I get the very last row of a join statement if I don't have any unique identifier... as in row_number field?Is there a way of creating a dummy column on my SQL statement to hold the record numbers of all records ..[1 to n] etc ???Id like to know how to do this and then I can get the MAX record number.Im using SQL server 2005 so the last() function doesn't work.

View 3 Replies

DataSource Controls :: Insert Row Only When A Certain Field Is Unique?

Jan 3, 2010

For example: INSERT INTO table (col1, col2, col3) VALUES ('value1','value2,'value3')But I would only like to insert the row if value3 isnt already present in col3 in some previous row. What is the best way to do that?And the insert command is run 50+ times in a loop (with different values each time for value3)

View 4 Replies

DataSource Controls :: Unique Numbers For Pulling Data?

Feb 3, 2010

I currently designed a school result portal. If the students want to view their result, they input their student school number in a text box to search out their result. But this is not secured because anybody can look up any students result if you have the number which is even written on their school uniform for identification.

I have being trying to secure this result by trying to generate or code special numbers that the students will input with their school number. The special numbers will be random numbers and may be from 10 and above, it might even contain letters. How do
I code this. I believe this is the best asp.net forum. I want the students to be inputing this special unique numbers and their student numbers so that there result will be avaliable to them.

View 2 Replies

DataSource Controls :: Return Unique Rows : T-SQL Query

Jun 11, 2010

I have an SQL database table like the following:

ID // Code // Shape

The ID is the integer identifier.

On one line the Code may be OX01 and shape Hexagon for example

Then the next line the code is still OX01 but the shape is Triangle.

What I want to do is be able to pull back data for every line that is equal to a unique Code column. in the above example OX01 Hexagon would be returned but not OX01 Triangle.

I've tried using SELECT DISTINCT but it brings back all records and doesn't filter them correctly.

I've considered having another column which could have Child/Parent data so that only the parent is returned but i'm sure there must be a better way of doing this.

View 2 Replies

DataSource Controls :: Datatable Defaultview On Unique Date?

Jun 8, 2010

I have a datatable and I want to have a view on it with unique dates. The thing is that I want the date to be unique if the year,month and day are the same, I dont care for the exact time.

I now have:

Dim dtUniqueDates As System.Data.DataTable
dtUniqueDates = dt.DefaultView.ToTable(True, "updatedate")

So in this case 12 february 2011 13:54 is different from 12 february 2011 15:54. But since year,month and day are the same I want them to be unique.

View 1 Replies

DataSource Controls :: Concatenate Field For Unique Identifier?

Feb 3, 2010

I'm using Visual Web Developer Express 2008 and SQL Management Studio Express 2005. I need to link 2 tables to either present in a Master/Detail or GridView/Form view.The goal is to allow the user to view time card information from the AS400 (read only) and then enter any corrections into a SQL table. My problem is in trying to connect the two tables.I've asked the AS400 administrator to add a unique identifier field to the table (HAPOINT), but he says he can't. I've tried to concatenate a field within Visual Web Developer's Query Builder but keep getting errors.Table 1 - exists in AS400, is non-permanent (cleared every 3 months) and can't be modifiedEmpl ID WO Date In Time In Date Out Time Out Table 2 - exists in SQL Server, newly created for this project (no data yet, so can be modified)Rev ID Empl ID Date (of revision entry) X (Revise - y/n) Revised Time In Revised Time Out I tried finding a solution through the SQL Forum, but haven't gotten a solution, so I'm posting here. There are additional details at that post:http://forums.asp.net/p/1516929/3658517.aspx#3658517Can anyone tell me how to concatenate "Empl ID /WO / Date In / Time In" from Table 1 to produce a unique identifier that I can then use in Table 2, thus providing the link between the two tables? Or, is there another way?

View 8 Replies

DataSource Controls :: How To Get The Unique Records Randomly From Data Table

Mar 22, 2010

I have a data table with 20 records i have to get the 15 unique records randomly and have to store it in Arraylist but now problem is that how i select the 15 unique records from Data table each time .

View 9 Replies

DataSource Controls :: Violation Of UNIQUE KEY Constraint Visual Basic Error Page

Apr 27, 2010

I'm new to asp.net and I'm building a project in which I send data to a database MSSQL, I've set a constraintname on some fields that I wantto be unique, now how do I catch that error when people insert a duble and handle it with a redirectionto custom error pagehere the code just in case you need it

Dim con As New System.Data.SqlClient.SqlConnection
con.ConnectionString = "Data Source=localhost;Initial Catalog=Database1;User ID=user;Password=password;TrustServerCertificate=True"
Dim myCommand As New System.Data.SqlClient.SqlCommand
myCommand.CommandText = "INSERT INTO serves(CategoryID,UserId,vote, Img, link, Description) VALUES('" & DropDownList1.SelectedValue & "','" & UId.Text & " ' ,1,'" & TextBox1.Text & "','" & "<a href=" + TextBox2.Text + ">" + TextBox4.Text + "</a>" &
"','" & TextBox3.Text & "')"
myCommand.Connection = con
con.Open()
myCommand.ExecuteNonQuery()

View 5 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved