I have a SQL database with about 300 company names and corresponding phone numbers. I would like to show a list of linkbuttons titled A-Z and when pressed, rebind the sqldatasource so that my GridView will only show company names that start with that letter.
I know there are some examples on codeproject.com, but they are a bit over my head... besides, I don't mind writing a custom select statement for the OnClick of every linkbutton if that's what I have to do. Problem is I haven't a clue how to write a select statement that will return items who's first letter matches my desired letter?
I'm trying to effecinty page through many rows of data with the gridview and objectdatasource. I'm having trouble. I'm using a table adapter with predefined counting and select methods. I have tested all the methods and they all work properly. But when I configure the object datasource to use the table adapter, and set the gridviews datasrouce, the page doesn't load and I wind up getting "time out". Any help? <asp:GridView ID="GridView1" runat="server" AllowPaging="True" DataSourceID="objTopics"> <Columns> <asp:BoundField DataField="topic_title" /> </Columns> <EmptyDataTemplate> <p>NOTHING HERE</p> </EmptyDataTemplate> </asp:GridView> <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" EnablePaging="True" OldValuesParameterFormatString="original_{0}" SelectMethod="GetTopics" SelectCountMethod="GetTopicsRowCount" TypeName="TopicsTableAdapters.discussions_GetTopicsSubSetTableAdapter"> <SelectParameters> <asp:Parameter DefaultValue="1" Name="startRowIndex" Type="Int32" /> <asp:Parameter DefaultValue="10" Name="maximumRows" Type="Int32" /> <asp:Parameter DefaultValue="1" Name="board_id" Type="Int32" /> </SelectParameters> </asp:ObjectDataSource>
I have a problem with efficiently paging with gridview and objectdatasoruce. I have GetPosts1(startRowIndex, maximumRow, topic_id) and GetPostsCount(topic_id). I tested each procedure and each are working correctly. The problem is with the controls. Here is the code for the controls. <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False" DataKeyNames DataSourceID="ObjectDataSource2"> <Columns> <asp:BoundField DataField="RowNumber" HeaderText="RowNumber" SortExpression="RowNumber" /> <asp:BoundField DataField="post_id" HeaderText="post_id" SortExpression="post_id" /> <asp:BoundField DataField="post_subject" HeaderText="post_subject" SortExpression="post_subject" /> <asp:BoundField DataField="post_text" HeaderText="post_text" SortExpression="post_text" /> <asp:BoundField DataField="post_time" HeaderText="post_time" SortExpression="post_time" /> <asp:BoundField DataField="topic_id" HeaderText="topic_id" SortExpression="topic_id" /> <asp:BoundField DataField="UserName" HeaderText="UserName" SortExpression="UserName" /> <asp:BoundField DataField="UserID" HeaderText="UserID" SortExpression="UserID" /> </Columns> </asp:GridView> <asp:ObjectDataSource ID="ObjectDataSource2" runat="server" OldValuesParameterFormatString="original_{0}" EnablePaging="True" SelectMethod="GetPosts1" SelectCountMethod="GetPostsCount" TypeName="PostsTableAdapters.discussions_GetPostsTableAdapter"> <SelectParameters> <asp:QueryStringParameter DefaultValue="48" Name="topic_id" QueryStringField="t" Type="Int32" /> </SelectParameters> </asp:ObjectDataSource> When I run the page, I get "A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll" and then "The thread '<No Name>' (0xbe0) has exited with code 0 (0x0)." Could the problem be with null or empty values in the returned data?
I have a webpage that displays 4000 or more records in a GridView control powered by a SqlDataSource. It's very slow. I'm reading the following article on custom paging: http://aspnet.4guysfromrolla.com/articles/031506-1.aspx. This article uses an ObjectDataSource, and some functionality new to Sql Server 2005 to implement custom paging.There is a stored procedure called GetEmployeesSubestByDepartmentIDSorted that looks like this:ALTER PROCEDURE dbo.GetEmployeesSubsetByDepartmentIDSorted( @DepartmentID int, @sortExpression nvarchar(50), @startRowIndex int, @maximumRows int)AS IF @DepartmentID IS NULL -- If @DepartmentID is null, then we want to get all employees EXEC dbo.GetEmployeesSubsetSorted @sortExpression, @startRowIndex, @maximumRows ELSE BEGIN -- Otherwise we want to get just those employees in the specified department IF LEN(@sortExpression) = 0 SET @sortExpression = 'EmployeeID' -- Since @startRowIndex is zero-based in the data Web control, but one-based w/ROW_NUMBER(), increment SET @startRowIndex = @startRowIndex + 1 -- Issue query DECLARE @sql nvarchar(4000) SET @sql = 'SELECT EmployeeID, LastName, FirstName, DepartmentID, Salary, HireDate, DepartmentName FROM (SELECT EmployeeID, LastName, FirstName, e.DepartmentID, Salary, HireDate, d.Name as DepartmentName, ROW_NUMBER() OVER(ORDER BY ' + @sortExpression + ') as RowNum FROM Employees e INNER JOIN Departments d ON e.DepartmentID = d.DepartmentID WHERE e.DepartmentID = ' + CONVERT(nvarchar(10), @DepartmentID) + ' ) as EmpInfo WHERE RowNum BETWEEN ' + CONVERT(nvarchar(10), @startRowIndex) + ' AND (' + CONVERT(nvarchar(10), @startRowIndex) + ' + ' + CONVERT(nvarchar(10), @maximumRows) + ') - 1' -- Execute the SQL query EXEC sp_executesql @sql ENDThe part that's bold is the part I don't understand. Can someone shed some light on this for me? What is this doing and why?Diane
Hi, I am seeking a hopefully easy solution to spit back an error message when a user receives no results from a SQL server db with no results. My code looks like this What is in bold is the relevant subroutine for this problem I'm having. Partial Class collegedb_Default Inherits System.Web.UI.Page Protected Sub submit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles submit.Click SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] WHERE [name] like '%" & textbox1.Text & "%'" SqlDataSource1.DataBind() If (SqlDataSource1 = System.DBNull) Then no_match.Text = "Your search returned no results, try looking manually." End If End Sub Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] ORDER BY [name]" SqlDataSource1.DataBind() End Sub Protected Sub reset_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles reset.Click SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] ORDER BY [name]" SqlDataSource1.DataBind() End SubEnd Class I'm probably doing this completely wrong, I'm a .net newb. Any help would be appreciated. Basically I have GridView spitting out info from a db upon Page Load, but i also have a search bar above that. The search function works, but when it returns nothing, I want an error message to be displayed. I have a label setup called "no_match" but I'm getting compiler errors. Also, next to the submit button, I also have another button (Protected sub reset) that I was hoping to be able to return all results back on the page, similar to if a user is just loading the page fresh. I'd think that my logic would be OK, by just repeating the source code from page_load, but that doens't work.The button just does nothing. One final question, unrelated. After I set this default.aspx page up, sorting by number on the bottom of gridview, ie. 1,2,3,4, etc, worked fine. But now that paging feature, as long with the sorting headers, don't work! I do notice on the status bar in the browser, that I receive an error that says, "error on page...and it referers to javascript:_doPostBack('GridView1, etc etc)...I have no clue why this happened. Any help would be appreciated, thanks!
I am executing a script to add a column to few tables and drop existing constraints, create new foreign key constraints, indexes etc. After we test this on our development database we have to deliver the script to the customer. My concern here is, when I have to drop the constraint with the name, I am not able to do it because its been created with alphanumeric char in the constraint name. So I end up getting the constraint name for each table. And moreover, I wont be able to deliver the same script to the customer as the alphanumeric in the constraint names on the customer's database will be different.
Any suggestions to overcome these alphanumeric in the constraint names?
I have upsized 2 foxpro table to SQL Express. In table 2 called Orphan I have/had a field that would autonumber with the letter "U" first. Example would create a AlphaNumber Like "U00001223"
In Foxpro this is a easy function, But I have been unable to find a similiar way to do this in SQLEXPRESS. Foxpro would have you define the field as Unique Number with template defintion of "U"N8
In SQL I know you can use Numeric on a field for a unique number but cant find setting to proced number with a "U"
Is this doable is in SQL and does anybody have a reference point or example they could share ?
Any help would be great and hope my question made sense..
I'm having trouble with a query where I need to limit a resultset by comparing (using a WHERE clause) a field that is alphanumeric with one that is numeric. I've tried converting, casting, and case statements, but I either get an overflow error or a big slap on the wrist by SQL Server 2005. Does anyone have any good solutions to this? I've been racking my brain for a while now.
Hi there,The age old question of creating a unique alphanumeric value automatically like ABC0001, ABC0002 Is it possible to do this automatically? That is, without having to update it which will slow the db down horribly?
I have a column called firstname ..in that it stores value like this
john smith andrew jr jim sr andrew bar tina *^ don $%
I need to retrieve all those rows where name consists of non alphabets...for example 5 and 6 has non alphabets..
I am using PATINDEX('%[^a-z]%',Firstname) function but if it finds space between names it is considering as error..I would like to find only non alphabets in name ..space is fine..is there any function to find out?
How to auto increment an alphanumeric Primary Key in SQL? :( Because I want to add something like this in the Primary Key, for example i'll add a new data with an alphanumeric value of ABC-0001, then I'll add another 1, and it auto increments to ABC-0002 and so on.. How can I do it? And if I'll add a new alpha character in the Primary Key field, for example DEF-0001, then I'll add another and it auto increments to 002, and so on, and it will go back to 0001 if i'll use another combination of alpha characters. for example, i'll add a new alpha character AAA, will it go back to 0001 or it will continue? T___T I hope u get my point.. I want my table to look like this if i have added the dataABC-0001ABC-0002DEF-0001DEF-0002AAA-0001then if il add a new 1, for example ABCit will auto increment to 0003 in the same field, it will look like this after addingABC-0001ABC-0002ABC-0003DEF-0001DEF-0002AAA-0001Will it be possible? :(
I have seen this problem posted several times and not seen an applicable solution yet. No offense, the suggestions may have been good for those scenarios, but not this one.
Several (at least 4) Excel Spreadsheets come from a vendor that I need to import to a table. They are uploaded via web to a directory so they can be imported by a scheduled DTS package.
Darren Green's site gave me some good info on how to get this far, btw. But I cannot overcome the NULL-ifying of Column Headers for Numeric fields when the spreadsheet is imported.
Named ranges, along with any sort of spreadsheet editing is too time consuming. And since they come from a vendor, having them come to us with the required items in place is not possible.
Even though it seems easy enough, it's a toughy. Any help would be rewarded with respect and admiration. Thanks, Mike
Trying to use LIKE / NOT LIKE to identify values that contain any alphanumeric characters outside of A-Z e.g £%$^&*_-{[@ etc etc
The field should contain only values between A-G with a numberic e.g ABCD1234567... but some rows have characters such as above, some have spaces (weeps) , and some have letters outside the A-G range ....
I am new to SSC . I have a table that has NO.OF WORKING HOURS for 30 days. I am trying to convert all the values into INT as MINS to generate a SSRS report.
Note: There are some records with negative value (-4h15m)
Hi, I am using SQL Server 2000. In database i am having one column named Address which contains full address of the customer. While searching i want to ignore starting numeric or alphanumeric values. Kinly guide how I can ignore numeric or alphanumeric values while searching the data.
So my requirement is i need to add comma (,) before every number value in this text.The text is different from each other.But main one what ever the number is there need to add comma before that one (decimal,numeric etc)
Requirements •ALPHANUMERIC FORMAT – > AA00AA00………..ZZ99ZZ99 Last 8 bytes will alternate between 2 byte alpha/2 byte numeric •Generate from Alphabets – A through Z Numbers -0 to 9 •Generate Unique Sequence (No Duplicates). •Must Eliminate letters I and O Output Expected •AA00AA00………..ZZ99ZZ99 •Using 24 alphabets & 10 digits , 24*24*10*10*24*24 = 3 317 760 000 records
Below is my Sql Function -
CREATE function [dbo].[SequenceComplexNEW] ( @Id BIGINT ) Returns char(8) AS BEGIN DECLARE @OUT AS CHAR(8)--,@Id as Bigint
I have a sql table with a varchar column which contains codes like '080101000', in my SSIS dataflow I have a lookup against this table and the column whith the code is used as output column for my lookup transformation.
In the advance editor the output column datatype is DT_WSTR, but when the code contains only numbers like the code '080101000' the first '0' is removed! It's like the code is at some point transformed to numeric and then inserted in the output column as a string. This in nonsense!!
insert into example values('fd') insert into example values('fd') insert into example values('fd1') insert into example values('fd23') insert into example values('fda23') insert into example values('fd23g')
Is it possible to write a sql statement to skip aplpha numeric values? I got a field containing these values; 20, 70, 150, 140, 100, KORT, 90, 180, 160. And I'm trying to check if any value is bigger than 175 (@Limit), but I want to skip the value 'KORT'. So is it possible to check if a value is numeric or not? ISNULL( CONVERT(int, ProductVariant.Size), 0) > @Limit Regards, Sigurd
They need to be grouped by range specific to the alpha numeric part, which can vary within the same despatch. I was thinking of using a row over partition after splitting the numeric and alpha part and to check if they are consecutive and build the range. But I am thinking that this approach is an overkill and there may be a better way to achieve this in SQL 2012.
I have included the create table scripts and example data below:
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[SAMPLE_TABLE]( [DESPATCH_ID] [nvarchar](30) NOT NULL, [SAMPLE_ID] [nvarchar](30) NOT NULL
Hello all, I have an odd requirement. I have a column with a systemgenerated username that is a 6 character, alphanumeric, field. Theseusernames are randomly generated by code. I need to create a storedprocedure that will return all combinations that are not alreadybeingused. Maybe the result of still trying to wake-up from a longweekend.But, I cannot think of an easy way to do this.Any help would be greatly appreciated.Best regards,rbr
I want to search for alphanumeric values between an upper and lower bound in a sql database.For example: search for a serial number like pvf-456-3b. Upper bound is q, lower bound is g.I should then get every serial number starting with g - q.If possible the bounds should be more specific like "search for serial number between gt2 and qy"Can anybody help me out?
I am having a table which contain data in below form
id startvalue endvalue
1 12:00a 12:29a
2 12:30a 12:59a
3 1:00a 1:29a
4 1:00p 1:29p
5 2:00a 2:29a
Through SQL query I want to select the id column value for the row returned for the following query
select id from mytable where '1:24a' >= startvalue and '1:24a' <= endvalue
Idea is I will pass a literal value that lies between the startvalue (nvarchar column) and endvalue (nvarchar column) to fetch the id of the row returned, which should be 3 But when I run the query it returns me 2 rows for id 3 and 4.
I believe this is because I am trying to compare nvarchar columns with ">=" and "<=" operators.
Can anyone suggest how i can select the correct value or how to do this.
