Iam developing online test using ASP.NET,C#.NET.Now my doubt is test takers should get random questions from the database sqlserver2005.Already i ve inserted 10 question into the database.I ve used NEW ID() .But questions are repeating.I am new commer in to IT industry .Provide me with code.Given below is my code.I can retrive questions from the database now but cannot get in random order.protected void Page_Load(object sender, EventArgs e)
{Label10.Visible = false;
Label9.Visible = false;if (!IsPostBack)
{if (Session["id"] == null)
{Session["id"] = 1;
}Session["ans"] = 0;SqlConnection con = new SqlConnection(@"server=123-9181FF31362SQLEXPRESS;user id=sampleu;pwd=Sampleu2;database=n;");
con.Open();
SqlCommand cmd = new SqlCommand("select * from n3 where sno='" + Convert.ToInt16(Session["id"].ToString()) + "' ", con);SqlDataReader re;
}SqlConnection con1 = new SqlConnection(@"server=123-9181FF31362SQLEXPRESS;user id=sampleu;pwd=Sampleu2;database=n;");
con1.Open();
string ss = Session["id"].ToString();SqlCommand cmd1 = new SqlCommand("select Answer from n3 where sno='" + Convert.ToInt16(Session["id"].ToString()) + "' ", con1);
Hi, I need to select few items from sql database.I know for ORDER BY, but I need those items to be mixed in random order every time when they are returned from database. Those are the same items every time, just randomly mixed. Can i do it with SQL, or I have to find another way (e.g. to mix them after sql returns them)?
hello i have a problem and i dont know if it can fixed or not i'm using asp.net 2 and sqlserver 2005 i have a table named questions in the database and that table has 5 columns questionid,question,answer1,answer2,answer3 every questions has 3 answers 1 right and the other 2 are wrong what i want to do is select 10 random questions and their right and wrong answers show in my asp.net page as application the answers will be in radio buttons so is that can be done or it's not possible.thanks all
I need to build an SQL query, which generates the random rows priority wise. I found this on following article. http://articlesdotnet.blogspot.com/2007/09/random-rows-in-respect-to-their.html Can anyone test it? In addition, tell me. Is it good or have a bug? If anyone have the better query then please tell me.
As a part of my unpaid internship, I am creating a ASP.NET interface for a MS SQL Server 2000. The table I am having problems with has over 750,000 rows by 26 columns. There isn't a primary key. It stores a transaction dump from another primitive Database server.
Problem:
When perform a query I get one set of results. I run the same query again after a short wait and the rows returned are in a different order. The majority of the rows returned are the same ones returned in the previous query. Only, some rows may be missing and the order may change.
I really wasn't surprised by some duplicate rows. I am confused why they are showing up in a different order and the above mentioned inconsistancy in results.
I thought I was having problems with my Repeater Control; however, SQL Query Analyzer returns the same results.
I have 2 tables, Artists and Artworks. I have a query:
SELECT TOP (4) dbo.Artists.ArtistID, dbo.Artists.FirstName + ' ' + dbo.Artists.LastName AS FullName, dbo.Artworks.ArtworkName, dbo.Artworks.Image FROM dbo.Artists INNER JOIN dbo.Artworks ON dbo.Artists.ArtistID = dbo.Artworks.ArtistID ORDER BY NEWID()
This query returns random images, but the artists are sometimes repeated. I would like to have DISTINCT Random Artists returned, each with a random image. I tried various subqueries, but I just get error messages. Any help would be appreciated. Thnks,
I have a text file that come from our client that is Column deliminated by ~ and row deliminated by {CR}{LF}. There is a comment field that appearently is not cleaned up and has {CR}{LF} within the comment field.
I am new to SSIS and I'm wondering if there is a way to detect and correct the bad rows?
example file formet:
ORDERID~DATE~Comment~Address 1~2/3/2007~Some Comment~1234 oak st 2~2/3/2007~Some messed up comment~345 oak st. 3~2/3/2007~Another comment~3214 asdf blvd.
I am using Sql Server 2008 R2.I have a existing query that basically says
Select Top 50 Subscriber_ID, Member_Name, Group_ID from my_table order by rand(checksum(newid()))
However the client now wants to have at least two from each group_id. There are 17 different groups. When I run this as is I get about six of the 17 groups in the results. How can I change this to get at least two results from each group_id?
I need to import data from another server on recurring basis. Before inserting the data, I need to perform some checking e.g. check the last update date and time.
I am thinking of scheduling SQL job that run SQL Query. The SQL query will make use of cursor to check each row, to decide what to do with the imported data
Is it the right way to import the data? However I did not know how to select data from another server using T-SQL. Can help? I am using SQL 2000
Hello,I want to select the names and number of rows of all tables in thecurrent database, whose name starts with 'sys'my query is:select o.[name], sum(i.[rows]) as numbersfrom sysobjects oinner join sysindexes ion (o.[id] = i.[id])where o.[name] like 'sys%'and i.indid=1group by o.[name]the result of the query is (depending of the database) :name numberssysaltfiles 14syscharsets 114syscolumns 4934syscomments 2035sysconfigures 38sysdatabases 7sysdepends 5524sysdevices 6sysfilegroups 1sysfulltextcatalogs 0sysfulltextnotify 0sysindexes 98syslanguages 33sysmessages 3795sysobjects 1285syspermissions 806sysproperties 0sysreferences 0sysservers 1systypes 26sysusers 14sysxlogins 3But when I count the number of rows of "sysobjects", I getnumbers=1298, which is different from the result displayed above andsame goes for "syscolumns".I also tried "dbcc updateusage [0]" to update the SQL Server but Ididnt help me.Can anyone please advice me on this behaviour?
Hy, I nead to make a stored procedure in order to add a random record set. This record set is used to write in an ASP page a list which is automatically modified everytime we reload the page.
Hi, how do i do a select statement with asp.net to return a record if a field is null. I have the following code: SqlCommand cmd = new SqlCommand("SELECT * FROM Categories WHERE ParentId = @ParentId", cn);.Parameters.Add("@ParentId", SqlDbType.Int).Value = parentId != null ? (object) parentId : DBNull.Value;cn.Open(); The variable parentId is a nullable int. However when i pass in a null value it doesn't return anything even though there are records in the database that have a null value for the ParentId field. Appreciate if someone could tell me what i am doing wrong. Thanks
Hello all,I'm using SS 2000Based on the following table and data:CREATE TABLE T (F1 VARCHAR(1),F2 INT,F3 INT)/* T has no unique key *//* The data */INSERT INTO TSELECT 'A' AS F1, 1 AS F2, 10 AS F3UNION ALLSELECT 'B', 2, 12UNION ALLSELECT 'B', 3, 11UNION ALLSELECT 'A', 4, 10UNION ALLSELECT 'B', 3, 11UNION ALLSELECT 'A', 0, 0UNION ALLSELECT 'B', 2, 5UNION ALLSELECT 'D', 6, 7In the real situation, T is a subquery build from some tables and views. Icannot easily send the real problem.I want a query that will return:- One row for each different F1, no matter which it is.- Ideally, no temporary table should be created. Only subquery.- F2 and F3 must come from the same row. So the use of aggregate functionsto retreive each of them cannot be used.A possible result could be:F1 F2 F3---- --------- -----------A 1 10B 2 12D 6 7How could I do that?Thanks for your helpYannick
I need to write a select statement where I need to select the record randomely. Is there any function to do that? What's the best way to do that? Please help...
I have a table with two columns: value and weight (weight is smallint).
I want a query that will return the value of one row at random with the added requirement that rows with a higher weight have a higher probability of being chosen. Any ideas?
Consider the below code: I am trying to find a way so that my select statement (which will actually be used to insert records) can randomly place values in the Source and Type columns that it selects from a list which in this case is records in a table variable. I dont really want to perform the insert inside a loop since the production version will work with millions of records. Anyone have any suggestions of how to change the subqueries that constitute these columns so that they are randomized?
SET NOCOUNT ON
Declare @RandomRecordCount as int, @Counter as int Select @RandomRecordCount = 1000
Declare @Type table (Name nvarchar(200) NOT NULL) Declare @Source table (Name nvarchar(200) NOT NULL) Declare @Users table (Name nvarchar(200) NOT NULL) Declare @NumericBase table (Number int not null)
Set @Counter = 0
while @Counter < @RandomRecordCount begin Insert into @NumericBase(Number)Values(@Counter) set @Counter = @Counter + 1 end
Insert into @Type(Name) Select 'Type: Buick' UNION ALL Select 'Type: Cadillac' UNION ALL Select 'Type: Chevrolet' UNION ALL Select 'Type: GMC'
Insert into @Source(Name) Select 'Source: Japan' UNION ALL Select 'Source: China' UNION ALL Select 'Source: Spain' UNION ALL Select 'Source: India' UNION ALL Select 'Source: USA'
Insert into @Users(Name) Select 'keith' UNION ALL Select 'kevin' UNION ALL Select 'chris' UNION ALL Select 'chad' UNION ALL Select 'brian'
select 1 ProviderId, -- static value '' Identifier, '' ClassificationCode, (select TOP 1 Name from @Source order by newid()) Source, (select TOP 1 Name from @Type order by newid()) Type
I have these columns. TicketID, User, Date...I want to select 10 random tickets for each user for the past 30 days. I not sure whether to do this via sql or using VB in the report design.
Hi,I need to extract randomly 5 records from the table "Questions". Now I useSELECT TOP 5 FROM Questions ORDERBY NEWID()And it works. The problem is that I need an additional thing: if SQLextracts record with ID=4, then it should not extract record with ID=9,because they are similar. I mean, I'd like something to tell SQL that if itextracts some questions, then it SHOULD NOT extract other ones.How can I do it?Thanks!Luke
Stepping thru the code with the debugger shows the dataset rows being deleted.
After executing the code, and getting to the page presentation. Then I stop the debug and start the page creation process again ( Page_Load ). The database still has the original deleted dataset rows. Adding rows works, then updating works fine, but deleting rows, does not seem to work.
The dataset is configured to send the DataSet updates to the database. Use the standard wizard to create the dataSet.
cDependChildTA.Fill(cDependChildDs._ClientDependentChild, UserId); rowCountDb = cDependChildDs._ClientDependentChild.Count; for (row = 0; row < rowCountDb; row++) { dr_dependentChild = cDependChildDs._ClientDependentChild.Rows[0]; dr_dependentChild.Delete(); //cDependChildDs._ClientDependentChild.Rows.RemoveAt(0); //cDependChildDs._ClientDependentChild.Rows.Remove(0); /* update the Client Process Table Adapter*/ // cDependChildTA.Update(cDependChildDs._ClientDependentChild); // cDependChildTA.Update(cDependChildDs._ClientDependentChild); } /* zero rows in the DataSet at this point */ /* update the Child Table Adapter */ cDependChildTA.Update(cDependChildDs._ClientDependentChild);
We are running MSSQL 2000 on a reasonably powerful dedicated Win2k system Dual 2.4 Xeon Procs, 2 GB of RAM, Ultra 160 SCSI disks.. blah blah blah.
Our primary use this database server is for our Coldfusion Application servers. We host about 50 or so databases.
Of late, we have been experiencing random failed logins for certain databases. These failed logins are logged to the event log on the server. They randomly; queries executed against a datasource configured on our application servers trying to get data from the database fail with a login failure when other times they will succeed. I am confused about this issue. Could an issue where the SQL Server is overloaded cause a login failure for a database?
I'm using ASP and SQL Serv 2000. What I need to get from 2 tables (company & customers) is random 10 customers from random 20 comp. Anyone got an idea how to do this??? I've spent 2 days trying to get stored proc. or T-SQL to work, but nothing good came out of it. I can get 1 comp and 10 cust, but not a grouped list of 20 comp. w/ 10 cust. each.
Dear Gurus,I have table with following entriesTable name = CustomerName Weight------------ -----------Sanjeev 85Sanjeev 75Rajeev 80Rajeev 45Sandy 35Sandy 30Harry 15Harry 45I need a output as followName Weight------------ -----------Sanjeev 85Rajeev 80Sandy 30Harry 45ORName Weight------------ -----------Sanjeev 75Rajeev 45Sandy 35Harry 15i.e. only distinct Name should display with only one value of Weight.I tried with 'group by' on Name column but it shows me all rows.Could anyone help me for above.Thanking in Advance.RegardsSanjeevJoin Bytes!
I have a table which is returning inconsistent results when I queryit!In query analyzer:If I do "SELECT * FROM TABLE_NAME" I get no rows returned.If I do "SELECT COL1, COL2 FROM TABLE_NAME" I get 4 rows returned.In Enterprise manager:If I do "return all rows" I get 4 rows returned, and the SQL is listedas being "SELECT * FROM dbo.TABLE_NAME".I've tried adding the "dbo." before my table name in QA, but it seemsto make no difference.I'm using SQL Server 2000, which is apparently 8.00534.Can anyone help me, or give me ideas about what to check?Thanks,Rowland.
When I use SSIS for extract data from ssas, that means,I use mdx query.
then random error occured.
Hope some one can understand my poor English....
And the Error Info show below.
Code Snippet
Error: 0xC0202009 at Data Flow Task - For Individual User Tech Points, OLE DB Source 1 1 [31]: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80040E05. An OLE DB record is available. Source: "Microsoft OLE DB Provider for Analysis Services 2005" Hresult: 0x00000001 Description: "Error Code = 0x80040E05, External Code = 0x00000000:.". Error: 0xC004701A at Data Flow Task - For Individual User Tech Points, DTS.Pipeline: component "OLE DB Source 1 1" (31) failed the pre-execute phase and returned error code 0xC0202009.
