DataSource Controls :: Derived Table And MIN Function?
Feb 27, 2010
I have the following query which returns all appointments for a given date, grouped by client and appointment date. For those clients that have multiple appointments on that date, I get multiple rows, one for each appointment time. I only want the earliest appointment for each client, which would result in only one row per client. If I add the MIN function to SchedTime, I'm forced to put all columns in a GROUP BY clause, which isn't what I want.Can I use a derived table and/or MIN(Schedule.SchedTime) to achieve this? Or is my thinking wrong to begin with?
"SELECT Schedule.ClientId, " +
"ClientData.FirstName, " +
"ClientData.LastName, " +
[code]...
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Jul 9, 2010
I would like to know which one is better, table-valued function or View, in terms of perfomance.Earlier I have created view which is performing cross join (which takes time) and 2/3 Left outer join and it's taking time. To reduce execution time I have created table-valued function with parameter to reduce cross join execution time and it returns the same result as view.Just give me an idea about table-valued function and View, in terms of perfomance. Which one is better?
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Apr 26, 2010
I spent an hour googling and trying. No success. I want to get the digits behind the dot or comma for my calulcated column:
[code]...
But it just shows me a 0 and no other digits.
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Feb 22, 2011
I want to add a class and initialize a JS funcion behind my nested masterpage which is being dervised from an other master page. But when I add the following code in the PageLoade event in the code behined of my derived page then it give the folowing error
Exception Details:
System.NullReferenceException: Object reference not set to an instance of an object.
CODE-
[Code]....
[Code]....
[Code]....
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Dec 22, 2010
I'm trying to figure out how add extra logic to this derived column expression:
LEN(TRIM(pup_date)) == 0 ? NULL(DT_DATE) : ((DT_DATE)(SUBSTRING(pup_date,5,2) + "-" + SUBSTRING(pup_date,7,2) + "-" + SUBSTRING(pup_date,1,4)))
If there's a 0 in the field the code inserts a null. Otherwise it inserts a date. How can I change this to insert a NULL if a question mark "?" appears in the column?
This is what I tied using the OR operator but it's not working:
LEN(TRIM(pup_date)) == 0 || LEN(TRIM(pup_date)) == "?" ? NULL(DT_DATE) : ((DT_DATE)(SUBSTRING(pup_date,5,2) + "-" + SUBSTRING(pup_date,7,2) + "-" + SUBSTRING(pup_date,1,4)))
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Apr 25, 2010
how can i use cursor in this function ?
ALTER FUNCTION [dbo].[GetCatIDChilds]
(
@CatID [code].....
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Jun 29, 2010
how can i select a record from A table and insert into B table using linq?
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Jun 13, 2010
Basically 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";
[code]...
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Jun 9, 2010
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?
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Feb 26, 2010
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
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Mar 1, 2010
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:
[code]...
"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?
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Mar 1, 2010
I'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:
[code]...
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Jun 18, 2010
how to copy from one table to another table in dataset using c#
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Jan 1, 2010
How 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.
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May 15, 2010
May you tell me how can I transfer data from a table to another table, the condition of non-repetition rows
as a procedure in database MS QSL server 2005 ,Works in the first day of the month I use the first table in the prodation environment it is contain the employee data and the second to update first table only
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Sep 5, 2010
I have a table in my aspnet database. I added a bottom row "Not Selected", if the user doesn't select from a databound drop down list. This row is at the bottom, because I just added it to the table data. Is there any way to move this one row to the top of the table manually? There is not "cut" and "paste" when I select the whole row.
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Feb 2, 2011
Is it possible for a derived controls to inherit his base control skin.
Say I am deriving a control from TextBox, is it possible for the derived control to inherit the skin settings for Textbox or do they need to be defined again?
I am applying the default skins to all controls through the styleSheetTheme Page property I am using the Devexpress asp.net controls if that makes any difference.
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Feb 16, 2010
I have a class that derives from System.Web.UI.Page and have set my pages to derive from this custom page class instead of Page. At runtime, the controls are never initialized and throw a NullReferenceException. I've changed some class names and namespaces in the pasted code to protect the innocent. The only thing that I currently override in my PageBase is OnPreLoad and I do call the base.OnPreLoad. I'll eventually add more functionality to this PageBase but for now all that it has is this:
[Code]....
I've tried putting this into a class library (with System.Web referenced) and I've also tried moving the class into the web application and had the same results either way. As another strange twist, I have another class with derives from PageBase called IndexPageBase and it doesn't have this problem:
[Code]....
[Code]....
[Code]....
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May 12, 2010
How can I put a SQL Function as 'WITH ENCRYPTION' like you can with a Stored Procedure?
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Jan 25, 2010
I'm on training in a company and i'm making a web application with an SQL server database..Now I created everything but i need to know how to program a search function..t's the point that when I search to a computer it'll put all the pc's with the matching word into the dropdownlist..Like when you search for "A" I get all the pc's wich has an 'A' in their name, I made everything, in the query builder I made a parameter with the textbox but i need not EXACT the value I typed but verything wich has it in it.
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Jan 18, 2010
I need to create a hash key on my tables for uniqueness and someone mentioned to me about md5. But I have read about checksum and binary sum; would this not serve the same purpose? To ensure no duplicates in a specific field.
How can implement this? do I need to write code in my vb application which populates the tables with stored procedures or can I do this from SQL server 2005 studio express?
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Jul 8, 2010
I have a stored procedure returned a row of data which are written in business layer logics in ASP .net C#. If I bind the data in grid view, I can read the specific cell values from the grid. However, I don't want the grid view visible to the users.
If possible, no data display at all. I only need to save two cell values into variables. how to complete the getProfileValues() function?
[code]....
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Apr 6, 2010
i am calling a scalar function from a stored procedure. Does using user defined scalar finction has a negative impact on performance.
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Feb 17, 2010
I have a tbale in database tow tables city and Intrest I need to calculate somethign like this
city1*intrest1 + city2*Intrest2 + city3*intreste3
final result I ned to asing in other column
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Feb 19, 2010
I want to know if there is a way to create a fuction in SQL Server for the following purpose. I have a select statement that pulls up a list of names from the database based on an ID which is the input parameter for the function. I want to be able to concactinate the values of names got from the query and return a String value.
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