using sql server 2005.
i need to query a table which normally will return multiple records for the id and I need to loop through probably using a cursor and pull values out from each record to make a string.
what is the syntax for this? i've seen cursors using a set number (EX: loop through 5 times) but I need to create a query so that I can loop through once for each row returned from my query.
Currently I have
dlRSS.DataSource = GetRSSFeed("http://www.foodsafetynews.com/headlines.xml")
dlRSS.DataBind()
Function GetRSSFeed(ByVal strURL As String) As DataTable
'Get the XML data
Dim reader As XmlTextReader = New XmlTextReader(strURL)
'return a new DataSet
Dim ds As DataSet = New DataSet()
ds.ReadXml(reader)
Return ds.Tables(2)
End Function
<asp:DataList ID="dlRSS" runat="server" Width="100%" >
<ItemTemplate>
<strong><p><div><asp:HyperLink ID="TitleLink" runat="server" Text='<%# Eval("title") %>' Target="_blank" NavigateUrl='<%# Eval("link") %>'/></div></p></strong>
<strong><p> <div><asp:Label ID="SubtitleLabel" runat="server" Text='<%# Eval("description") %>' /></div></p></strong>
</ItemTemplate>
</asp:DataList>
But is returning all rows in RSS Feed I would only like top 5 or so
Note: You may not need to read the whole thing to know what's wrong... skip down to the part about the 3 scenarios if you'd like. Only read the begin if you'd like some background info on how I've tried implementing this and where the errors occurred.To begin with, I'm trying to retrieve a list of Clients stored in the CRM_Clients table for a given callerId.I retrieve the clients from my Controller with the SelectLiveClientsForCaller method. The message is then passed on to the DAL through the static Instance method in the DataProvider class:
public List<Client> SelectLiveClientsForCaller(int callerID)
{
List<Client> results = new List<Client>();
[code]...
I have a table "RANGES" with the following columns
LowRange as int
HighRange as int
with the data similar to below
select * from Ranges
LowRange HighRange
1 100
101 200
201 300
.
.
.
901 1000
And another table "infoDetails" with the following columns
Range as INT
amount as money
with the data similar to below
select * from infoDetails
Range Amount
23 34.00
235 44.00
345 34.00
678 100.00
555 100.00
530 100.00
510 100.00
I need one report with the following format without cursor.
LowRange HighRange Count Amount
1 100 1 34.00
101 200 0 0.00
.
.
501 600 3 300.00
601 700 1 100.00
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this is my html code
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this is my code behind
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this is my bal code
acuttally
in my javascript popup i am getting the checked values but i need it in record by record in the lblsave data
I have a SQL Server database, and I select some rows, how to know the number of records I select ?
View 6 RepliesI have 9 tables i need data out of.. 8 of those tables will always just return 1 row of fields that i need. the 9th table can contain many records.. So what i need is a few fields out of each of the 8 tables and then ALL records from the 9th table.. so i know that because there will be multiple records in the 9th table returned, that the fields i pull from the other 8 tables will contain duplicate information and thats fine since i will be displaying the individual records from table 9 on their own page..So everything could be for the same vendor, except for the date in the 9th table that contains specific dates and details about each record returned.When i review the execution plan im getting an yellow exclamation icon on a nested inner join and has this message as the warning: No Join Predicate
Here is what i have, but is returning incorrectly, way to may records, seems to be stuck in a loop.. then below that, i have one that returns the correct number of records, but everything except one column is duplicate, all the TR columns should be unique in the values stored in them.. the rest should all be duplicates, just because its the same vendor, so all the other information will be generic information about that record.
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This FROM and WHERE return the correct number of records, but the fields are all duplicated except the last column with is transaction_date, seems that the 3 TR fields are being populated with the first records data or something.. not sure.
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I am curious, if it's better to iterate through a set of records using cursor or using a WHILE (SELECT ..) ? I have read that cursors can be expensive, so may be WHILE (SELECT..) is a better approach.But I am not sure ?
EXAMPLE OF WHILE (SELECT..) is as below
DECLARE @warehouseId INT
DECLARE @warehouseIds TABLE ( WarehouseId INT )
[code]...
After connecting to a database using DataReader, how can I count the number of rows ?
View 2 RepliesI am using AutoCompleteExtender on a text box as follows
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My problem is the autocomplete returns a long list of recods ,I want to limit it to maximum 10 recods .How can I do that? I set CompletionSetCount="10" ,but it doesn't seem to work How can i do that?
I am getting out parameter of type DbType.Xml in .net code. What is the better way to loop through all the records and do some operation.
View 1 RepliesI need to loop through all my db records, append some text a specific column (for all records), and save back to the db.
View 3 RepliesI have a web page where I want to return number of returned rows by datareader as I need to get Count of rows. My code is as follow :
SqlCommand cm = new SqlCommand(); SqlDataReader dr;sqlconnection cn; public int Returndatareader( int x)
{
int s;
string sqlstr = "SELECT COUNT(*) FROM P_Events as Counter";
cm.CommandText = sqlstr;
cm.Connection = cn;
cn.Open();
dr = cm.ExecuteReader();
if (dr.Read())
{
int y = dr.RecordsAffected;
s = y;
//return y;
}
cn.Close();
return x;
}
but the rows affected count is -1 everytime i run my code.
I've got a linq to sql query that pulls data from 2 different tables and contains an or statement:
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The problem I've got is that some queries match both sides of the or statement so it returns the same record twice.
How can I eliminate these duplicates quickly and easily?
i want to create an search that uses ajax. here are the requirements
1)on initial page load return all search data
2)have textbox that when typed in filters out the none matching records
any good tutorials out there on this forgot to mention i'm using the telerik controls, using radgrid to display the results.
inside procedure, how to know a sql returned records or not?
View 7 RepliesI want to count the number of results results returned by my query and print the number to a literal on the page.How would I do that?
View 2 RepliesTrying to get the number of rows returned in a query in Visual Basic.The query returns 3 rows.Dim td As Integer = dataset1.Tables(0).Rows(0).ItemArray(0) has a value of 1.Dim tg As Integer = GridView1.DataSource.tables(0).rows.count has a value of 3.1. Why do aren't they both 3 ?2. Is there a best way of getting the number of rows ?3. Where can I find a tutorial or book that explains the notation above ?
View 3 RepliesI have executed my query in VB with:
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I now want to count the number of returned rows so that I can say:IF rows_returned = 1 then login else deny
I think you get the idea.P.S. I know this is not the most secure method of login but I do not want to use the ASP.NET configuration manager as I like to understand what is happening. I am starting off very simple and I shall work up from there.
im learning t-sql, infact i needed its while-loop to loop through records of a table, i found this code in some book:
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i understand here that setting the rowcount variable to 1 will force the select statements to return only one record, do all above select statements return one record only?
if the underlined select statement returns one record everytime it is executed, isn't it supposed to return the same first record of the table everytime? is there a better way to loop through a table's records?
SQL Select Union and total number of returned rows?
View 3 Repliesusing asp.net/vb.net 2005
In the aspx page I have the EmptyDataText property set
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However when no records are not returned I am not seeing the text "No Results Returned" I am populating the gridview using a SqlDataSource. I am not sure why this is happening but thinking about setting the value programmatically, does this make sense and if yes which gridview event should I do this? has anyone else experienced something like this before?
Using C#, how can I check the total number of rows returned from a database when using a Repeater? The reason I need to check is I need to alter the presentation of the data when there is only 1 row returned.
View 9 Repliesthis is my code
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basically, the InstellingGegevens table gest filled in by some procedure from another server.
the thing i then need to do is check if there are new records in this table, and fill in the new ones in Instellingens.
this code runs for like 4 minutes on 15k records. how do I optimize it? or is the only way a Stored Procedure?
this code runs in a timer, running every 6h. IF a stored procedure is best, how to I use that in a timer?
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I am building a small mass email application for my department. Which basically emails out a notice to a large list of email addresses. Because the company email server limits the amount of email addresses that can be contained in a single email I have to break the list apart into smaller 100 email groups.
I've create the query to pull all email addresses needed, stuffed them into a collection but I am not sure how to grab 100 emails at a time and send it off to another sub to perform the email send before grabbing the next 100.
This is what I have so far.
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