Random Select
Nov 23, 2007How Can I select a Random set of records from a database table?
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Select Random Row In Sql
Apr 11, 2007Hi,
i wanna fetch random data using sql query. is there any query that returns random row? Please help me.. i found some but they didnt work..
How To Do A Random Select
Nov 10, 2000Hy,
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.
Thanks !
SQL: Sequential Random Select
Mar 8, 2006Hello--I need to create a SQl statement (SQL SERVER 2000) which will do the following:
read table1 sequentially
select every "nth" record
write each selected record to and output table
Your help is greatly appreciated.
thanks,
MB
Select 10 Random Records
Apr 22, 2008Hello,
Is it possible to select 10 random records from a table?
Thanks,
Miguel
SELECT A Random Row For Each Different Type
Jul 20, 2005Hello 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
View 2 Replies View RelatedHow Can Select Random Rows From Database?
Jan 23, 2008Hi
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;
re = cmd.ExecuteReader();while (re.Read())
{
Label1.Text = re[0].ToString();
Label2.Text = re[1].ToString();
Label3.Text = re[2].ToString();
Label4.Text = re[3].ToString();
Label5.Text = re[4].ToString();
Label6.Text = re[5].ToString();string sss = re[6].ToString();if (sss == "nil")
{
Panel1.Visible = true;Panel2.Visible = false;
}
else
{Panel1.Visible = false;Panel2.Visible = true;
}
}
re.Close();
}
}
protected void Button1_Click(object sender, EventArgs e)
{string Answer = "";if (RadioButton1.Checked == true)
{Answer = "A";
}else if (RadioButton2.Checked == true)
{Answer = "B";
}else if (RadioButton3.Checked == true)
{Answer = "C";
}else if (RadioButton4.Checked == true)
{Answer = "D";
}else if (RadioButton5.Checked == true)
{Answer = "True";
}else if (RadioButton6.Checked == true)
{Answer = "False";
}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);
SqlDataReader re1;string result1 = "";
re1 = cmd1.ExecuteReader();if (re1.Read())
{
result1 = re1[0].ToString();
}
//Session["ans"] = 0;if (Answer == result1)
{Session["ans"] = (Convert.ToInt16(Session["ans"].ToString()) + 1);
}
con1.Close();
Session["id"] = (Convert.ToInt16(Session["id"]) + 1);
RadioButton1.Checked = false;RadioButton2.Checked = false;
RadioButton3.Checked = false;RadioButton4.Checked = false;
RadioButton5.Checked = false;RadioButton6.Checked = false;
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;
re = cmd.ExecuteReader();
while (re.Read())
{
Label1.Text = re[0].ToString();
Label2.Text = re[1].ToString();
Label3.Text = re[2].ToString();
Label4.Text = re[3].ToString();
Label5.Text = re[4].ToString();
Label6.Text = re[5].ToString();string sss = re[6].ToString();if (sss == "nil")
{
Panel1.Visible = true;Panel2.Visible = false;
}
else
{Panel1.Visible = false;Panel2.Visible = true;
}
}
re.Close();int s = Convert.ToInt16(Session["id"].ToString());if (s == 11)
{
Label10.Text = Session["ans"].ToString() + " / " + "10";Label9.Visible = true;
Label10.Visible = true;
//int x = Convert.ToInt16(Session["ans"].ToString());
//int y = (x/10) * 100;//y = Label10.Text;
}
////// SqlConnection con6 = new SqlConnection(@"server=123-9181FF31362SQLEXPRESS;user id=sampleu;pwd=Sampleu2;database=n;");
////// con6.Open();
////// SqlCommand cmd6 = new SqlCommand("SELECT CONVERT(int, 10*RAND()) from n3 where sno='" + Convert.ToInt16(Session["id"].ToString()) + "' ", con6);
////// SqlDataReader re6;
////// re6 = cmd6.ExecuteReader();
////// //select top 5 * from Employee order by NEWID()
//////// SELECT FirstName,LastName
////////FROM Person.Contact
////////TABLESAMPLE SYSTEM (10 PERCENT)
////// while (re6.Read())
////// {
////// Label1.Text = re6[0].ToString();
////// }
////// con6.Close();
}
}
Select Random Records From MS SQL Table?
Aug 26, 2005Hello,I have 1000 of records in my table. I wanna select random 100 of them? How?regards
View 3 Replies View RelatedSelect At Random Order From Database
Dec 23, 2005Hi,
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)?
How Do I Select A Random Record From The Table
Sep 18, 2000Hello,
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...
Thanks in a million.
Sarika
Select Random Row Based On Weights
Feb 9, 2007I 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?
How To Select Random Row In Table Using Sql Server...
Jun 12, 2007I Got the Sql query "Select Top 1 * from Books order by NewId()"........ for select Random row in a table .. any one can explain Above Query
Regards,
S.sajan
How To Select Random Records From Database (advanced)
Mar 12, 2006hello 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
View 17 Replies View RelatedRandom Selection From Table Variable In Subquery As A Column In Select Statement
Nov 7, 2007Consider 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
from @NumericBase
SET NOCOUNT OFF
Reporting Services :: Select 10 Random Records From Past 30 Days For Each User
May 18, 2015I 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.
View 5 Replies View RelatedReturning Random Records And NOT Similar (random Questions)
Jul 20, 2005Hi,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
View 1 Replies View RelatedURGENT - Random 10 From Random 20 (2 Tbls)
Oct 14, 2004I'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.
Help is greatly appreciated.
Random Row
Jul 20, 2005Hi there.I need to fetch ONE random row from many. How can i get it? I try toexecute "SELECT field.table FROM table ORDER by RAND()" no effect.Thank you.
View 1 Replies View RelatedRandom Records
Nov 16, 1999Hi,
I'm trying to use the following query to select two random records from my database. Do you have any ideas of why the recrand field will not change? I am using MS Sql server 7.. Please email mark@dtdesign.com ..Cheers Mark
SELECT TOP 2 mytable.id AS RECID, RAND(mytable.id) AS recrand
FROM mytable
ORDER BY recrand
DTS Bug? (or Random Feature?)
Jul 16, 1999Has anyone noticed that if you created DTS package and try to
change connection properties (i.e. change DSN or redirect
DTS to different server or Database), as soon you click OK
it does not save new password and hence does not work
anymore. In my case to move Database from Development to
Production server I would have to recreate all DTS packages.
Is there any way around it?
Any ideas greatly appreciated.
Random Numbers.
Jun 22, 2001I am trying to get random numbers to have a unique value for different processes, then I can identify each process. What happens is that I use rand() function without seed, so I got my random numbers, but after shutting down SQLServer and try to get again another random number after booting up, the same series of random numbers is given again and again. So if anyone knows how I can get unique values,even though reseting the server, and using random function or any other method which automatically provides unique values,I'll really appreciate it if you let me know it.
This is the function: select rand()
Alberto.
Random Values
Dec 24, 2001Is there a way to write an SQL statement to choose random values from a particular select statement..for example:
select * from address
I was thinking, if there was a way to use an include statement for it like:
select * from address where id IN ('generates some random values')
thanks in advance
Last Day In A Random Month
Mar 7, 2006So i've got to generate these queries that go from the first of a one month to the last day of a month. the user provides the starting and ending months.
What I was wondering was is there an easy way to set the last day of the month in sql without having to go in and hard code which months end on the 30 and which ones end on the 31.
Random Values In MS SQL,
Jan 1, 2005Hello guys , I am new here,
Well, I am moving my greetings script from MS Access to MS SQL, here is what I was using in MS Access.
See this screenshot: Click Here
Well, I've imported the data from access database, but I don't know how to do the AutoNumber in MS SQL,
Also I don't know how can I add that Random thing *See the arrow in the screenshot*
Thanks in advance
Random Varchar(10)
Jan 27, 2006How can I have display random value for field varchar(10).
View 5 Replies View RelatedUnique Random Row Id
May 4, 2006I once came across a database in which when ever a row was inserted, a unique random code was also inserted in a column. This code generated was similar to format like {8A5FE5F1-6BDA-476C-A4DB584A7710FBF91121054625}. I was told that SQL2000 has some inbuilt functionality for this.
Any idea on how to do this using SQL2000 or coding.
I feel this is much better than Identity Column as using autonumbers in quesrystring is too much risky as they easily readable.
Please help.
Thanks
Random Values
Mar 8, 2005I have a table with 3 fields SiteID (PK), SiteCode, SiteName.
For each SiteCode I have several rows with different SiteName.
For example: 1 327 a
2 327 b
3 327 c
4 328 aa
5 328 bb......
I need to retrieve each time SiteCode with random SiteName.
For example: 327 b , 327 a , 327 c
328 aa 328 bb 328 aa.
I need it very urgent, so any ideas will be very helpful. Thanks to all,
Random From List
Jan 9, 2004I have a customer that wants to be able to generate a random list...
-----------------------
The list is case numbers, and I can get those easy enough by saying
SELECT
dbo.table_case.id_number
FROM
dbo.table_case
Now, what I want to do is take that list and extract 1 out of every 1000, picking out random id_numbers to display.
Is this something I can do via a SQL query?
Thanks,
Dan
How I Get The Random Row From The Table?
Jan 26, 2004When I execute the following query several times, I get the same row if there is no new data inserted:
SELECT TOP 1 * FROM TableName
Is there a way to get a random row from the table? Thanks in advance.
Random Insertion
Jun 10, 2008Hi Experts ,
I want to insert datas randomly to all columns of a table.The columns have different datatypes like int,varchar,datetime. What to do??? It is urgent so please help.
TIA
RKNAIR
Random Insertion
Jun 10, 2008Hi Experts ,
I want to insert datas randomly to all columns of a table.The columns have different datatypes like int,varchar,datetime. How to create a procedure for the same??? please help.
TIA
RKNAIR
Random Number
Apr 15, 2002Generates a true random number from xxx to zzz. Uses a table variable so it all depends on the boundaries you specify how long it will take.
create procedure random_number
@lower int = 0,
@upper int = 256,
@number int = null output
as
set nocount on
declare @numbers table (number_id int identity(1,1), value int)
if @lower > @upper
begin
set @number = @lower
set @lower = @upper
set @upper = @number
end
set @number = rand((datepart(mm, getdate()) * 100000) + (datepart(ss, getdate()) * 1000) + datepart(ms, getdate()))
while (select count(*)
from @numbers) < (@upper - @lower + 1)
begin
insert into @numbers (value)
select (@upper - @lower + 1) * rand() + @lower
end
select @number = value
from @numbers
order by newid()
go
Random String
Apr 15, 2002I used this to generate a random password. You can change what it returns to up to an 8000 character password if you feel brave. You will need this function (http://www.sqlteam.com/Forums/topic.asp?TOPIC_ID=14924) to generate the random numbers. For some reason, occassionaly a NULL (CHAR(0)) character would get in there and mess things up so I had to remove those. You could change this to even include the non alpha numeric characters.
create procedure random_password
@length smallint,
@password nvarchar(256) = null output
as
set nocount on
declare @number int
declare @lower int
declare @upper int
declare @part tinyint
if @length > 256 set @length = 256
set @password = ''
while len(@password) < @length
begin
exec random_number 0, 3, @part output
if @part = 0
select @lower = ascii('a'),
@upper = ascii('z')
else if @part = 1
select @lower = ascii('A'),
@upper = ascii('Z')
else if @part = 2
select @lower = ascii('0'),
@upper = ascii('9')
set @part = null
set @number = null
exec random_number @lower, @upper, @number output
set @password = @password + ltrim(char(@number))
if substring(@password, len(@password), 1) = char(0) set @password = left(@password, len(@password) - 1)
end
go