I need to randomly order the selected rows from my table. Is this better to do on the Application level or in a stored procedure using "orderby NewID()"?
Which is faster? There will be about 100 rows returned with 10 columns.
Say you have a table that contains 1000 rows, you create a simple select statement with a where clause that returns 100 or so of those rows. Easy enough.
Now, let's say that you wish to modify that select so that out of the 100 rows that match the where clause criteria, you only wish to return 10 rows randomly (i.e., you could run this query multiple times and get different results). How exactly would you go about doing this, efficiently?
I've thought about creating a stored procedure that will query the initial 100 rows into a temp table with an additional column (to number the rows from 1 to 100). Then setting up a loop (10 iterations) that will then generate a random number from 1 to 100 and select that row number into another temp table. At the end of the loop I'll have my table of randomly selected records. I am sure there is probably a better way to do this...
~Mike
Hi All
by using this query
"select * from sample order by newid()" im getting a set of rows. On refreshing this query i need the same set of rows to validate.(provided sufficient data in the table).
Please provide me the query to use for this
Adv. Thanks
Hari...
Hello!
I would like randomly change the order of the rows in my table. Is there any way to do that? I also have a question about random generator. Is it possible to get a repeatable sequence of random numbers between 1 and 10 in T-SQL? (for example 2,7,6,5,8,9,3,2,....each state with the same probability). But i need the same sequence every time i run my procedure. I know this is just a pseudo generator. I tried to use function rand([seed]) and change the seed value, but I got some strange results...(floor(rand([seed])*100))
Thanx for any idea,
Z.
Is it possible to select record randomly from SQL table?
View 3 Replies View RelatedI never paid much attention to this before but I noticed this today in a new table I was creating.
For tables defined in the tabular model the table properties have something like SELECT Blah FROM TableName ORDER BY Blah Then in the tabular model the table's data is in the same order it was ordered by in the data source for the table.
I have a date table I setup and I noticed it is NOT respecting the sort order.
I have it sorted by DateID which sorts with the oldest date first and newest date as last row.However, the table that is imported and stored in the data model is not in that order.
I can of course manually sort the rows in BIDS/DataTools, but I find this discrepancy odd.
Would this have negative impacts on the EARLIER function for example if the data rows are not in the order specified?
Hi Guys!
This SQL statement, though carefully written to delete only selected rows, deletes the entire A_Shift_Times table:
DELETE FROM A_Shift_Times
WHERE EXISTS (
SELECT 1
FROM
Users
WHERE
(A_Shift_Times.time_in >= CONVERT(DATETIME, '2000-05-29 00:00:00', 102)) AND
((Users.User_Password LIKE N'mrr%') OR (Users.User_Password LIKE N'work%')))
What gives? What am I doing wrong here?
I have to write a couple scripts that will update a couple columns in two separate tables and also insert a new row with the same data except for a few calculated or provided values ...... see specs below ...
1. tGradeHist Table Script One (Needs to be run first)
a. Read tGradeHist Table and Select rows with GradeEndDate = NULL and GradeStartDate = '1/1/2007 12:00:00 A.M.'
b. Calculate New Step Amount = StepAmount * Incr% (Round To Nearest Whole Dollar)
c. Create New Row for this table using information from row read above and insert new information where indicated :
GradeCode - Same
GradeLocationCode - Same
Step - Same
GradeStartDate - '7/1/2007 12:00:00 A.M.'
GradeEndDate - NULL
GradeCurrencyCode - Same
StepAmount - Result of b (above)
GradeFrequencyCode - Same
RangeMaximumAmount - Same
RangeMidAmount - Same
RangeMinimumAmount - Same
GradeCurrentFlag - 'True'
MarketMaximumAmount - Same
MarketMidAmount - Same
MarketMinimumAmount - Same
GradeGUID - Same
TSCOL - Same
d. Update Row read in a (above) with GradeEndDate = '6/30/2007 12:00:00 A.M.' and GradeCurrentFlag = 'False'
2. tPersonBasePayHist Table Script Two (Needs to be run second)
a. Read tPersonBasePayHist Table and Select rows with PersonBasePayEndDate = NULL
b. Calculate New PersonBasePayAmount = PersonBasePayAmount * Incr% (Round To Nearest Whole Dollar)
c. Create New Row for this table using information from row read above and insert new information where indicated :
PersonGUID - Same
PersonBasePayStartDate - '7/1/2007 12:00:00 A.M.'
PersonBasePayEndDate - NULL
PersonBasePayCurrencyCode - Same
PersonBasePayAmount - Result of b (above)
PersonBasePayFrequency - Same
PersonBasePayPayrollFrequencyCode - Same
BasePayReasonCode - 'SA'
ConductedBasePayReviewDate - Same
ScheduledBasePayReviewDate - Same
PayrollCode - Same
PersonBasePayCurrentFlag - 'True'
ApprovedByPersonGUID - Same
PersonBasePayGUID - Same
TSCol - Same
d. Update Row read in a (above) with PersonBasePayEndDate = '6/30/2007 12:00:00 A.M.' and PersonBasePayCurrentFlag = 'False'
Using SSRS 2008 r2...I have a report with a single-value parameter and three multi-value parameters, Class1, Name2 and Name3. I'm hoping for an explanation to one thing that I'm seeing and information on a second thing.
Class1 and Name2 both have the (Select All) parameter selected but Class1 is displaying the concatenated parameter variable list whereas Name2 is showing Null. Why is that? If anything, how can I get Class1 to be similar to Name2 and show Null?But my desired wish is to have Class1, Name2 and Name3 display the text"All Selected" when the parameter (Select All) is chosen.
Hi!
I recently run into a senario when a procedure quiered a table without a order by clause. Luckily it retrived data in the prefered order.
The table returns the data in the same order in SQL Manager "Open Table"
So I started to wonder what deterimins the sort order when there is no order by clause ?
I researched this for a bit but found no straight answers. My table has no PK, but an identiy column.
Peace.
/P
i have the table name is "Books". its contains 10 Rows.... I want select 5,6 rows,or 7,8 not first and last..... Any tell me the Query for that...
Regards,
S.sajan
Hi,
I Have created a stored procedure to use full text search and return the results back,
When i run this procedure in the query analyzer it is working fine, but when i run this procedure from asp.net application, it is returning zero rows.
I have checked all the parameters and everything in my web application, there is nothing wrong in there.
Another stored procedure which almost do the samething with some different parameters is working fine on both ends.
I am using Sql server 2005 (express) + VS.NET 2005. and using ASPNET to connect to database.
Thanks in advance for any suggestions.
Hi,
I have a table in my database with several car types, and the order I want for that table is:
Car_typeA_1
Car_typeA_2
Car_typeA_3
Car_typeA_4
Other_Cars_typeA
Car_typeB_1
Car_typeB_2
Car_typeB_3
Other_Cars_typeB
Car_typeC_1
Car_typeC_2
Car_typeC_3
Car_typeC_4
Car_typeC_5
Other_Cars_typeC
...
This table is more or less always the same, but from time to time I want to add a new car type, for instance; Car_typeA_5, but this new type must be located under the last register, in the example under ‘Other_Cars_typeC’. So, now the order is wrong, and when I want to display these car types to a web form object, the items will appear wrong ordered.
My question is: To order the values(items) correctly, Where I have to do it? In the web page (ASP.NET) code behind, or somewhere in SQL Server (for example in the Stored Procedure that passes the value to the application)? Or maybe in the same database table..?
Thank you,
Cesar
Hi ,
i am dealing with around 14000 rows which need to be put into the sql destination.,But what i see is that the order of the rows in the desination is not the same as in the source,
However it is same for smaller number of rows.
Please help ...i want the order to be same.
Hi,
I noticed something strange today. I created a pkg that reads a flat file and writes the rows to a table.
In checking the data in the file against what's in the table, I noticed that the rows were inserted in a different order than they are in the file.
All the rows appear to be in the table correctly, but they're just not in the same order as in the file. I've never seen this before. But I checked very carefully, and this is indeed the case.
Is this normal??
Thanks
Hi Sir
In My web application i am using the ".UDL" file functionality.
<![endif]--><!--[if !vml]-->The €˜Select Provider€™ tab will be used to allow users to specify the OLE DB Provider to be used for the connection. now i am able to get all provides available in system. But i have a problem how to get the cossesponding connection tab at runtime.
please save, i am in crusial stage.
Thanks In Advance.
etlu me srinu
hiiiiiiiiii plz help me........urgent
my table is as follows
CREATE TABLE [dbo].[tbl_photo_gallery](
[image_id_int] [int] IDENTITY(1,1) NOT NULL,
[image_caption_vchr] [varchar](100) NULL,
[image_path_vchr] [varchar](200) NOT NULL,
[photo_cat_id_int] [int] NOT NULL,
[posted_by_vchr] [varchar](45) NOT NULL,
CONSTRAINT [PK_tbl_photo_gallary_1] PRIMARY KEY CLUSTERED
(
[image_id_int] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]) ON [PRIMARY]
now i wanna to get a randomly selected image_path_vchr(image path) from each photo_cat_id_int(category)
i m doing this:
select TOP (1) image_path_vchr from tbl_photo_gallery where photo_cat_id_int=1 ORDER BY NEWID()
to get random image_path_vchr from category 1....only single category.
but i wanna to use a simple query to get random image_path_vchr from each category without using any temporary table.....
plzzzzzzzz help me out......... thanks in advance
Hai friends,,
I have a table name "Student"
it contain 2 fields no ,name
no name
1 Raja
2 Larsen
3 Ravi
4 Ankit
5 Eban
my questions is I have a webform random.aspx
whenever any user open a webform random.aspx
it should display anyone of name in a random order..... CODING:-
Dim cn As New System.Data.sqlclient.SqlConnectionDim rd As sqlDataReader
cn.ConnectionString = "Persist Security Info=False;User ID=sa;Initial Catalog=master;password=david;"
cn.Open()Dim cmd1 As New SqlCommand("select no,name from Student", cn) ' how i can chage to random order....
rd = cmd1.ExecuteReader
rd.Read()
Response.Write(rd(0) & "." & rd(1))
rd.Close()
thank u..
Ambrose...
My Pocket PC application exports signature as an image. Everything is fine when choose Use SQL statements in TableAdapter Configuration Wizard.
main.ds.MailsSignature.Clear();
main.ds.MailsSignature.AcceptChanges();
string[] signFiles = Directory.GetFiles(Settings.signDirectory);
foreach (string signFile in signFiles)
{
mailsSignatureRow = main.ds.MailsSignature.NewMailsSignatureRow();
mailsSignatureRow.Singnature = GetImageBytes(signFile); //return byte[] array of the image.
main.ds.MailsSignature.Rows.Add(mailsSignatureRow);
}
mailsSignatureTableAdapter.Update(main.ds.MailsSignature);
But now I am getting error "General Network Error. Check your network documentation" after specifying Use existing stored procedure in TableAdpater Configuration Wizard.
ALTER PROCEDURE dbo.Insert_MailSignature( @Singnature image )
AS
SET NOCOUNT OFF;
INSERT INTO MailsSignature (Singnature) VALUES (@Singnature);
SELECT Id, Singnature FROM MailsSignature WHERE (Id = SCOPE_IDENTITY())
For testing I created a desktop application and found that the same Code, same(Use existing stored procedure in TableAdpater Configuration Wizard) and same stored procedure is working fine in inserting image into the table.
Is there any limitation in CF?
Regards,
Professor Corrie.
I have a web app that calculates tax filing status and then stores data about the person.
Facts
The insert is done through a stored procedure.
All the sites that this program is being used are connecting through a VPN so this is not an external site.
The duplicate records are coming from multiple sites (I am capturing there IP address).
I am getting a duplicate about 3 or 4 times a day out of maybe 300 record inserts.
Any help would be greatly appreciated.
There are many sqlcmdInsert.Parameters("@item").Value =
cnTaxInTake.Open()
sqlcmdInsert.ExecuteNonQuery()
cnTaxInTake.Close()
And that is it.
i need help to get the value of a column which is selected from a column of another table....
View 3 Replies View RelatedHello, everyone:
I have an Excel table that has columns like,
Vendoe_Name
Level
Address
Email
Phone
I use the statemen
SELECT * FROM OPENDATASOURCE('Microsoft.Jet.OLEDB.4.0',
'Data Source=C: est.xls;Extended Properties=Excel 8.0')...[Sheet1$]
and got output by column order,
Address
Email
Level
Phone
Vendoe_Name
How to make output by original column order like,
Vendoe_Name
Level
Address
Email
Phone
Any help will appreciated. Thanks
ZYT
I am attempting to sort the results of a query executed against a table variable in descending order. The data is being inserted into the table variable as expected, however when I attempt to order the results in descending order, the results are incorrect. I have included the code as well as the result set.
DECLARE @tblCustomRange AS TABLE
(
RecordID INTEGER IDENTITY(1,1),
RangeMonth INTEGER,
RangeDay INTEGER
)
DECLARE @Month INTEGER
DECLARE @Day INTEGER
-- Initialize month and day variables.
SET @Month = 8
SET @Day = 11
-- Insert records into the table variable.
INSERT INTO @tblCustomRange
(RangeMonth, RangeDay) VALUES (1,2)
INSERT INTO @tblCustomRange
(RangeMonth, RangeDay) VALUES (1,27)
INSERT INTO @tblCustomRange
(RangeMonth, RangeDay) VALUES (6,10)
INSERT INTO @tblCustomRange
(RangeMonth, RangeDay) VALUES (9,22)
INSERT INTO @tblCustomRange
(RangeMonth, RangeDay) VALUES (12,16)
-- Select everything from the table variable ordering the results by month, day in
-- descending order
SELECT * FROM @tblCustomRange
WHERE (RangeMonth < @Month) OR
(RangeMonth = @Month AND RangeDay <= @Day)
ORDER BY RangeMonth, RangeDay DESC
I am getting the following resultset:
RecordID RangeMonth RangeDay
----------- ----------- -----------
2 1 27
1 1 2
3 6 10
I am expecting the following resultset:
RecordID RangeMonth RangeDay
----------- ----------- -----------
3 6 10
2 1 27
1 1 2
I have to dts rows by timestamp. For example if my dts downloaded at 10 am then in the next run i want to grab rows updated in the AS400 after 10am. what is the best way to go in ssis?
thanks...
kushpaw
lets say that this select statement will give me 100 records..
"Select UserID from Users where location = 'FL'"
from these 100 records, I want to randomly get 5 records. whats the best way to go about doing this
I have the following data
MASTER
id
name
DETAIL
id
master_id
name
I want a perform a query where i can get all the rows of the master table which have no relationed rows in detail table.
How can I do that???
can i pass the name of the table and the "order by" column name to stored procedure?
i tried the simple way
(@tablename varchar and then "select * from @tablename)
but i get error massesges. the same for order by...
what is the right syntex for this task?
Hi there I need to fill database table randomly with 5 ordered numbers such as 43566 , 78578 , 92565 , .. to gain approximately 100000 row of a table . Is there a query ?
View 7 Replies View RelatedThis is my SQL :
Select p.patientid,p.patientname,p.patientIc,pvi.DateOfAdmission,pvi.visitid,pvi.ward,pvi.bedno,pf.status,pvi.SurgeonName,(f.Title + ' ( Ver ' + (CAST(f.Version as Char(10))) + ')') as Title FROM patient p, patientvarianceinfo pvi,patientForm pf,Form f where (p.PatientName LIKE '%" & Name & "%' or p.PatientIc LIKE '%" & ic & "%' or pvi.Ward LIKE '%" & ward & "%' or pvi.Bedno LIKE '%" & bed & "%') and (p.patientid = pvi.patientid) and (p.patientid = pf.patientid) and (pvi.patientid = pf.patientid) and (pf.FormID = f.FormID)and p.patientid in (select patientid from patientform pf)how do i get the number of rows?
I want to show a row number for each row returned by a SELECT starting at 1 and incrementing by 1 for each row.
Anyone got any ideas?
Hi!I'm a new T-SQL developer and just hit a roadblock.I have a scenario that goes like this: I have 2 stored procedures,spInner and spOuter. spInner has a SELECT statement which wouldnormally be used by a class using MS Enterprise Library and that outputgoes into a DataSet. However, I need to get the output of the SELECTstatement to go into spOuter and that's what I can't seem to figureout.I know I may be asked to use functions that return tables in replies tothis post, but I can't do that as some parts of my application have anEXEC(string) for dynamic SQL, instead of spInner.Any help appreciated.Cheers,N.I.T.I.N.
View 2 Replies View RelatedHello,
I start with this table,
Tagname
Timestamp
Value
A
12/12/2007 12:00:01
1
A
12/12/2007 12:00:02
1,1
A
12/12/2007 12:00:03
30
B
12/12/2007 12:00:01
12
B
12/12/2007 12:00:02
12
B
12/12/2007 12:00:03
12
C
12/12/2007 12:00:01
13,4
C
12/12/2007 12:00:02
14
C
12/12/2007 12:00:03
14,5
I would like the table to be as following
Timestamp
A
B
C
12/12/2007 12:00:01
1
12
13,4
12/12/2007 12:00:02
1,1
12
14
12/12/2007 12:00:03
30
12
14,5
Does anyone knows how to do this within a query?
Thx,
Nic
I had created a trigger which sees that whether a database is updated if it is its copy the values of the updated row into another control table now I want to read the content of control_table into BIzTalk and after reading I want to delete it.Can any one suggest the suitable ay to do this?
View 3 Replies View Related