I want to retrieve the data from the last record of a table. For eg: I have sorted the data in my table and want the value from the last record? How can I do that?
Is there a way to check that "saving" data to a table was successful and then do something after that?
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]...
I am counting from a table for that i have written code as below
protected void get_Id_Afterpoint()
{
int counter = 0;
string strSql = "select count(*) as ID from tblEnergy where ID=?";
OdbcCommand com = new OdbcCommand(strSql, con);
com.Parameters.AddWithValue("ID", DropDownList1.SelectedValue);
OdbcDataAdapter oda = new OdbcDataAdapter(com);
DataTable dt = new DataTable();
oda.Fill(dt);
if (dt.Rows.Count == 0)
{
lblID2.Text = "1";
}
else
{
counter = dt.Rows.Count;
counter = counter + 1;
lblID2.Text = Convert.ToString(counter);
}
}
there is no record related to DropDownList1.SelectedValue. but as i am counting if(dt.rows.count) and i put break point on the bolded part it shows 1 record. how it can be possible?
how can i select a record from A table and insert into B table using linq?
View 2 RepliesI am in a serious trouble right now, i wanted to know that how to write a query in LINQ to SQL to retrieve identity column's current value before inserting any value.
I need this cos i m building a windows app n i need to display this value before inserting a record. I have tried DataContext.ExecuteCommand('DBCC CHECKIDENT (Tablename)') but it returns the number of rows modified.
I have website database with a data table constently being "insert, select, count". This table has over a million record and is growing really fast.
Now I'm start worring about whether or not my sql server could handle the pressure. or maybe to have a million record is not a good practice at all.
The specs of my server is almost the best in the market. So I won't worry about the hardware.
Just wondering if ended up 3 million record in that table, will my queries and sql server itself still running smoothly?
Is there a function that will search a record in a Sql Table, I'm using VB.Net.
View 3 RepliesI'm not sure if I'm using the correct SQL for what I need. Well, I know that I am not because I'm not getting the results that I expect.
I have a table of products and it has a productID field and a setID field.
Products can be grouped together by making the groupID the same for the both of them.
I have only @productID parameter. My goal is to get a list of products minus this product and any other product that it is grouped with (ie..setID is the same).
Here is the query that I wrote because it has worked when excluding products from another table. I used the explicit GUID and still nothing.
[Code]....
I want to retrieve particular no of records from table with Condition..
my table structure is
QID Question Status
1 ssssss True
2 ssssss True
3 ssssss False
4 ssssss False
5 ssssss False
here i want to 3 questions condition is Status Filed TRUE Questions are must be getting..
I have to retreive all records from a table except 1 record. For example: I give example from default database in SQL ie "master" In "master" DB we have "spt_values" table. Now if I want to retreive all records from spt_values table except 1-1 record of type = A and type = B. To retreive all records its a simple query "Select * from spt_values where type in ('A','B')" -- this will returns 16 records. Now I want to retreive all record except 1-1 record left in each type, so it will return 14 records in result.
View 6 RepliesI would like to duplicate a table record but not all the columns.For example, Select from "TableA" Where recordid='1' AND insert into "TableA" All values except "col2" , "col3". I hope you got the idea. Could you please advise me what is the cleanest approach to get this done.
View 9 RepliesI want to get record count from below example.
I made two tables. One is club_info and another one is club_members.
And each table has data like following
[club_info]
club_id
club_name
:
[club_members]
mem_id
club_id
:
I want to get club_name and the member count for selected club_id and want to return the result as sqldatareader.
Some ids are pulled out from the XML field of a certain User Profile . Those ids have their text values stored in a SQL table.
What is the best way to map that xml list to the SQL table in order to populate a dropdown list which contains ids from the XML list and text values from the SQL table?
I have been able to successfully read a row of data from an SQL table using two column parameters. Now I would like to update this row with new information. Is this possible since the reader does not specify which row was read with the 'reader.Read();' command?
View 7 Repliesi Am using Special character while insert in the database. When i user single Quotes('), it shows an error that "Unclosed quotation mark after the character string" How can i over come this issue. But i want to insert the special characters"
View 5 RepliesI want to be able to retrieve a record from the database and change it than update the record in the database with changes.
what's I am doing
1- select the record for the data base
2- on loading the form set the content of each component woth data (eg: textbox1.text = "content")
when I edit the value and submit the form
3- I get the changed text (changed = textbox1.text )
but it get the old text not the changed one
I've got a sp as below:
The functionality I want to achieve is that when isHomePageFeatured is checked then this record is set to 1 for that column and for all the other records in the table it is set to 0.
This is fine for update as I can use the property Id to compare against, but for the newly inserted record it doesn't yet have a propertyId so I wondered if using newID() to affect all other records would have the same affect.
[Code].....
when i want insert a record i see an error like this Can't perform Create, Update, or Delete operations on 'Table(MainMenuLink)' because it has no primary key. with this codes:
MyLinqDataClassesDataContext db = new MyLinqDataClassesDataContext();
MainMenuLink li = new MainMenuLink { Link = "www.tprogrammer.com", LinkSubject = "subject" };
db.MainMenuLinks.InsertOnSubmit(li); [code]....
I am creating an album using the following stored procedure, which returns the primary key for the newly created record:
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[fpa_sp_albums_update_insert]
@album_id int,
@album_name nvarchar (50),
@album_descr nvarchar(250),
@album_img_cover_id_FK int,
@album_creation_date date
AS
If @album_id > 0
UPDATE [fpa_albums]
SET
album_name=@album_name,
album_descr= @album_descr,
album_img_cover_id_FK = @album_img_cover_id_FK,
album_creation_date = @album_creation_date
Where ((album_id = @album_id))
Else
INSERT INTO [fpa_albums] (
album_name,
album_descr,
album_img_cover_id_FK,
album_creation_date)
VALUES (
@album_name,
@album_descr,
@album_img_cover_id_FK,
@album_creation_date)
Return SCOPE_IDENTITY();
I execute the above stored procedure using the SQLHELPER. The VB.NET code for the page is as follows:
[Code]....
However, the createdAlbumID always shows -1 instead of the id for the newly created album.
How to display empty GridView to insert new record if no data retreived for some record on the result from data table?Actually i am trying to give a user an option to add recrod from Gridview. On result of some query it is perfectly displaying data and a footer row with the insertion textbox but when there is no data in the gridview it is not displaying. It should display with footer having insert textbox.
View 5 Repliesi have a website that needs to retrive some records in the database, to be specific, example is their Email Address, its more or less 10 records out of 100 records in a table but that number changes from time to time. upon retriving their Email Address, i need to Email them some messages one email at a time.
So to summarized it all:
1. Retrive data from a table (Email Address)
2. Make a Loop on each Email then send Message one email at a time.
give me a sample codes for the retriving and looping process?
how to retieve images which are stored in database one by one and put them in webpage's table.
My project is shopping cart type project in asp.net and server is sql2003
I saved the image urls in database.
I tried with no succcess doing a search here on the forum for some answers or pointers. So here goes.
I would like to Calculate total time from a records in a table.
the Table we'll call it "Time Table" may have four rows IE.
Field1 Field2
IN 08:00:00
OUT 12:30:00
IN 13:00:00
OUT 17:00:00
I am trying to display these records in a Child gridview with a total. Is there any SQL that can total time like this? or any other way I can total this?
I have a GridView and DetailsView on the same page. If the GridView has data, I can Select a row and it brings up the DetailsView from which I can edit that record or click NEW to create a new record. Without a record to Edit, the New link and the DetailsView control is not visible. What is considered best practices for Inserting the 1st record using a same page Gridview / DetailsView combination?
View 2 Repliesi want show ten record from table in the gridview at 2 column in five row.
like this:
------------gridview-------------
record1 | record2
record3 | record4
record5 | record6
record7 | record8
record9 | record10
1 2 3 ...
-----------------------
