ADO.NET :: Sum Of Two Columns In The Same Table
Mar 14, 2011i have atable that contains (id, name, commission) i need to have the sum of commission where name=a as'first' and the sum where name=b as 'second' in the same row
View 2 Repliesi have atable that contains (id, name, commission) i need to have the sum of commission where name=a as'first' and the sum where name=b as 'second' in the same row
View 2 RepliesI'm creating a table in an asp.net code behind dynamically, and I want to have a footer row that only has 2 cells. The first should span all the columns in the table-1. Is there some way other then keeping track of the # of columns in the table manually for me to set the colspan to be # of all the columns in the table-1? Preferably a HTML or CSS solution?
View 2 RepliesI've the following code which successfully makes an average for all the columns from a table. What I need to do though is ignore certain columns in this equation.
Dim totalNumber as Double = 0
Dim count as Integer = 0
For x = 0 To xyz123.Tables(0).Columns.Count - 1
Dim current as Double = 0
If Double.TryParse(xyz123.Tables(0).Rows(0)(x).ToString(), current) AndAlso current <> 0 Then
count += 1
totalNumber += current
End If
Next
Dim averageRating as Double = totalNumber / count
i have a table that has some columns and rows i want this table to have borders that are visible inside it i want every column an row to be closed in borders how can i do that?
View 1 RepliesI have a stored Procedure, which copies the data in one table to another table in other DB.
I have the query to copy the records to other table.
But, tomorrow, new columns are added to the source table, then, how to dynamically copy the data from those columns to the destination column..
In asp.net, I am having a data table with the column ID, Name, AGe, Rank.
I need to get the records from the Column ID, Name and have to create a new data table with this column and rows.
I can't found solution... i have set 4 columns in DataGrid view but when i am using SqlDatAdapter and DataTable it displaying all columns.
View 3 RepliesI'm trying to add these 4 co,umns to the table as bit type woth a defaut of FALSE. What am I doing wrong here? I get a syntax error near (
create PROCEDURE [dbo].[AddADIFields]
AS
ALTER TABLE dbo.tblTESTS ADD (AI1 Bit 0,AI2 Bit 0,AI3 Bit 0,AI4 Bit 0)
I am using PL/SQL Developer. I have a Table "C_PARTY_HXRF". Now I want see the Column Names and the corresponding Data types of this Table. Which Command should I Use?
View 28 RepliesI try to work with MYSql (because it's free) and I saw that the colums are different then when they are exployed in MS SQL?
Why is this? The most strange differents is that in MySQL there is no applicationId in the membership table.
This differents in tables cost me more time to do a export and import from MS SQL to MySQL.
I used jquery to fill the text box in my website. It works fine aswell. I want to display auto suggestions like this
London England
London USA
London Canada
Lontemple Greece
How can I do that? I searched google and found some code in php but not in .net. [URL]
I have a table think as table1, with 3 columns
col1 col2 col3 -- Columns
Y N 1 -- Data
but i want
colname val
col1 Y
col2 N
col3 1
I have a placeholder (in tr tags) which I fill with dynamic images. Is it possible to automaticaly begin a new row (tr) after 5 columns (td)?
[Code]....
I have tow colums
nickname, and name, and I allready filled them with information, like this
nikname = gino
name = longinos
What I want now is both to have the same information
nikname = longinos
name = longinos
I thought of somethig like this
update
Customer set name
= nikname
where custID
= custID
but it does not work, and I can't think of something good
I have 2 tables t1 and t2. In t1 I have 4 columns from that I want to insert only 2 columns to another table t2. I only want to send data which is in the form of IP address like (123.123.123.123). After eliminating nulls and other data.
View 7 RepliesI've got a sql table, that just keeps getting more and more columns added. I optimize the db as much as possible, but am curious about how many fields a table can have, and if there is a way to check if I'm getting too much data per row?
View 2 RepliesI am returning an IList to my model of data about users. I want my end users to be able to select which columns they want to see.
I know I can do this with a huge "if statement" however, I know there must be a better way. I have created an Enum with the column names. I feel if I could take the IListItem.EnumName I would be set. However, I'm not too sure on how to do this.
I am common table layout return in pure html which has 4 columns
<table>
<colgroup span="1" width="20%"/>
<colgroup span="1" width="30%"/>
<colgroup span="1" width="20%"/>
<colgroup span="1" width="30%"/>
<tr>
<td colspan="3">
question data.......
</td>
<td colspan="1">
Answer data......
</td>
</tr>
<tr>
<td colspan="2">
question data.......
</td>
<td colspan="2">
Answer data......
</td>
</tr>
</table>
This layout should work fine with first row columns should have width of 70 and 30% resp
and second row should have width of 50 and 50 resp. But the output what i see different.
what could be the problem and how to fix it. I couple of solutions for it
1. defining width at column level will work
2. defining a blank row with four columns above or below.
I have the default membership table that was added automatically, then just used server explorer to add more columns, like FirstName, LastName, etc. In my code I can access all the default columns, but not the ones I created. Any thing special I need to do?
Here is how I access the table. using user. gives me all columns, but the one I created.
string userName = User.Identity.Name;
MembershipUser user = (MembershipUser)System.Web.Security.Membership.GetUser(userName).ProviderUserKey;
I've read about primary, unique, clustered indexes etc. But I need to understand it via an example.
The image below is the auto-generated aspnet_Users table captured from SQL Server Web Admin Panel.
Taking this as a model; I will create a custom table called Companies and let's say the fields are: ID, Name, ShortName, Address, City, Country.. No values can be duplicate for ID, Name and ShortName fields.
What is your approach on creating indexes for this table? Which should be clustered or non-clustered? Are indexes below logical to you?
Index Columns Primary Unique Clustered ign.Dup.Keys Unique Key
------------------------------------------------------------------------------------------
PK_ID ID True True False False False
Comp_Index Name,ShortName False True True False False
I have an SQL table called tbl, im trying to add the columns A, B and C to it.
When i execute the command :
addcolumns = "ALTER TABLE SqlCreatedTbl ADD A char(50) ;";
cmd = new SqlCommand(addcolumns, conn);
conn.Open(); cmd.ExecuteNonQuery();
The column is added perfectly and i can see it in the table !
However, when i try to add multiple columns, it does NOT work, it gives me an error..
the command im writting for adding multiple columns is the following:
addcolumns = "ALTER TABLE SqlCreatedTbl ADD ( A char(50), B char(50), C char(50) );";
the debugger highlights the line : cmd.ExecuteNonQuery(); and throws the following exception: Exception Details: System.Data.SqlClient.SqlException: Incorrect syntax near '('.
The partial class:
[Code]....
In the controller:
[Code]....
Shouldn't ScaffoldColumn(false) hide the field in the view? I create a strongly typed CREATE view (AddSO), expecting that the soID column won't be rendered and that the Label name of the field 'name' will be 'Full Name'. But the AddSO view renders the soID column and still labels the 'Name' field as 'Name. What am I doing wrong?
Probably an odd question, but I'd like to know if it's possible to have a table with 3 columns and have a radiobuttonlist that spans these 3 columns with 1 radio button per column?Perhaps there's a more sensible way to do this, I've got 3 options that I'm going to pull from a database to populate the radiobutton list with and I want to repeat it "x" times.So imagine a questionnaire with 10 questions, and your only answers to each question are yes, no or maybe, I want something like all of the yes radio buttons in the first column, "maybe's" in the second column and "no's" in the third column (Just to make it look pretty).I know that I could manually put 3 radio buttons in a row, 1 per column, and give them their own ids etc, but that's working hard, not smart :)
View 2 RepliesOn one of our tables, a default clustered index is defined on the primary key by sql server 2005. The table also contains forign key columns and has got over 2 million rows. There are very frequent INSERT, UPDATE and DELETE functions on this table. Recently some of the SELECT queries which primary operate on the forign keys have become very slow (resulting in application timeout). To fix the problem, I defined an index on one of the primary keys which gave me very quick results. I don't know much about indexes.
1. Since I defined a new index (on the forign key) in addition to the existing default index, what kind of index (clustered or non-clustered) have I defined?
2. What performance impact does it have on the rest of the system? Is it going to break something else?
3. I read about fill factor. What is this and how does it effect the system?
4. Is the new index physically going to make any changes?
5. In case I delete this index later on, will the database return to the existing state or it will be a different state from now?
I have created a table in my SQL database that has a primary column (Title) and another column named Callsign. How can I access the table row that has a certain title and Callsign using C# in a web page event handler?
View 7 Replies