MS SQL Server :: SQL Query - Delete All Rows Bar The Last 10? Help Please!

How To Run Delete Query / Delete Several Rows Just By One Click ?

Feb 16, 2008

I'm using SqlDataSource and an Access database. Let's say I got two tables:user: userID, usernamemessage: userID, messagetextLet's say a user can register on my website, and leave several messages there. I have an admin page where I can select a user and delete all of his messages just by clicking one button.What would be the best (and easiest) way to make this?Here's my suggestion:I have made a "delete query" (with userID as parameter) in MS Access. It deletes all messages of a user when I type in the userID and click ok.Would it be possible to do this on my ASP.net page? If yes, what would the script look like?(yes, it is a newbie question)

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Delete Doesn't Delete Rows, But @@ROWCOUNT Says It Did

Aug 20, 2007

I ran the following query in Query Analyzer on a machine running SQL Server 2000. I'm attempting to delete from a linked server running SQL Server 2005:

DELETE FROM sql2005.production.dbo.products
WHERE vendor='Foo'
AND productId NOT IN
(
SELECT productId FROM sql2000.staging.dbo.fooProductList
)

The status message (and @@ROWCOUNT) told me 8 rows were affected, but nothing was actually deleted; when I ran a SELECT with the same criteria as the DELETE, all 8 rows are still there. So, once more I tried the DELETE command. This time it told me 7 rows were affected; when I ran the SELECT again, 5 of the rows were still there. Finally, after running this exact same DELETE query 5 times, I was able to remove all 8 rows. Each time it would tell me that a different number of rows had been deleted, and in no case was that number accurate.

I've never seen anything like this before. Neither of the tables involved were undergoing any other changes. There's no replication going on, or anything else that should introduce any delays. And I run queries like this all day, involving every thinkable combination of 2000 and 2005 servers, that don't give me any trouble.

Does anyone have suggestions on what might cause this sort of behavior?

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How To Create A Trigger Such That It Can Delete The Rows Whenever Any Other Application Such As Biztalk Had Read The Rows ?

Mar 12, 2007

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?

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Transact SQL :: Table Trigger To Delete All Rows Before Inserting Rows

Jul 24, 2015

I have a SQL script to insert data into a table as below:

INSERT into [SRV1INS2].BB.dbo.Agents2
select * from [SRV2INS14].DD.dbo.Agents

I just want to set a Trigger on Agents2 Table, which could delete all rows in the table , before carry out any Insert operation using above statement.I had below Table Trigger on [SRV1INS2].BB.dbo.Agents2 Table as below: But it did not perform what I intend to do.

USE [BB]
GO
/****** Object: Trigger Script Date: 24/07/2015 3:41:38 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON

[code]....

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DataSet Rows Being Deleted, But After The Update , The Sql Database Is Not Updated. The Delete Rows Still In The Database.

Jun 4, 2007

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);

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I Use SQL 2000, Can You Use One Delete Query To Delete 2 Tables?

Nov 26, 2007

this is my Delete Query NO 1
alter table ZT_Master disable trigger All
Delete ZT_Master WHERE TDateTime> = DATEADD(month,DATEDIFF(month,0,getdate())-(select Keepmonths from ZT_KeepMonths where id =1),0) AND TDateTime< DATEADD(month,DATEDIFF(month,0,getdate()),0)
alter table ZT_Master enable trigger All

I have troble in Delete Query No 2
here is a select statemnt , I need to delete them
select d.* from ZT_Master m, ZT_Detail d where (m.Prikey=d.MasterKey) And m.TDateTime> = DATEADD(month,DATEDIFF(month,0,getdate())-(select Keepmonths from ZT_KeepMonths where id =1),0) AND m.TDateTime< DATEADD(month,DATEDIFF(month,0,getdate()),0)
I tried modified it as below
delete d.* from ZT_Master m, ZT_Detail d where (m.Prikey=d.MasterKey) And m.TDateTime> = DATEADD(month,DATEDIFF(month,0,getdate())-(select Keepmonths from ZT_KeepMonths where id =1),0) AND m.TDateTime< DATEADD(month,DATEDIFF(month,0,getdate()),0)
but this doesn't works..

can you please help?
and can I combine these 2 SQL Query into one Sql Query? thank you

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Delete Many Rows

Mar 17, 2006

Hi All,I am designing a purge process for a db that has grown to almost 200GB.My purge process will remove about 1/3 of the 500 million rows spreadover seven tables. Currently there are about 35 indexes defined onthose seven tables. My question is will there be a performance gain bydropping those indexes, doing my purge, and re-creating the indexes. Iam afraid that leaving those indexes in place will create a lot ofextra overhead in my delete statements by having to maintain theindexes. I know that it could take many hours to rebuild the indexesafterward, but I am planning on doing that anyway. The reason that Iwant to know whether I should drop the indexes ahead of time, is I maynot be able to do the entire purge at once and the tables may need tobe accessed between purges. If this occurs, I will need to have thoseindexes in place.So do I drop the indexes before the purge and re-create them later ordo I leave them in place and re-index them afterward?Thanks In Advancep.h.

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Delete Rows

Oct 19, 2006

Hi

I am trying to delete rows in temp1 which are exist in temp2

delete from dbo.temp1 as a

inner join temp2 as b

on a.regionname=b.regionname

and a.servicecode=b.servicecode

and a.directioncode=b.directioncode

and a.destorigflag=b.destorigflag

I am getting error :

Incorrect syntax near the keyword 'as'.

thanks in advance

subash

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Delete Rows Where...

Oct 17, 2007

Hi there,

I have two tables a,b, with the same columns.
How do I delete all the data from a that has the same entry as b?

Thanks for all the answers

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How Can I Keep Only The Top Ten Rows And Delete The Rest

Dec 17, 2007

I have a table that I would like to only keep the top 10 rows for each username. How can I kep the top 10 and delete the rest?

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DELETE Rows In MSDE

Sep 6, 2004

Hi..

DELETE FROM table1 WHERE projektID=5

there are 500000 rows that has projektID=5.. and when i run the query the hardrive is working for a couple of minutes and then stops. and NOTHING has happened. not a single row has been deleted?.. cant the DELETE statement handle that many rows or?. or is there another way i can delete these rows?.

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Delete A Row And All Other Rows Thats Linked To It

Apr 6, 2006

Hii want to delete a row in my database but the problem is, i cant delete it as other table rows is linked to it. I have to delete all the rows thats linked to the row i wanna delete first.Is there a easier way to delete the row and all the rows thats linked to it? i wanna code it to do it.an suggestions?

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Delete Duplicate Rows

Jun 25, 2000

I have a table which looks as follow:

field1 field2 field3 field4 field5 ......
A B C A X ......
A B C B Y ......
A B C C Z ......
A B C A Y ......
. . . . . ......

I want to delete all the rows except one row. Anybody can help?

Thank you very much.

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Delete Duplicate Rows Using T-SQL

Jan 20, 2000

How do you delete duplicate rows in a table so only one row is left in the table, using T-SQL.

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DELETE DUPLICATE ROWS

Mar 30, 1999

CAN ANYBODY REPLY FOLLOWING QUESTIONS. I WANT TO DELETE DUPLICATE ROWS
IN MY TABLE WITHOUT USING TRANSACTION TABLE. AND ONE MORE QUESTION HOW
TO GET YESTERDAY DATE BY USING ISQL WINDOW.

THANKS
JK

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Delete Only 2 Out Of 4 Identical Rows

Jun 19, 2004

I am a beginner in Ms-Sql,so kindly help me with this query:-
Following is the table:-

Name Phone email
John 4564 john@abc.com
John 4564 john@abc.com
John 4564 john@abc.com
John 4564 john@abc.com

How can i manage to delete only 2 rows out of these 4 rows

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Delete Duplicate Rows

Jan 13, 2005

Suppose that we have the following rows in a MSSQL table :

1administrateur1NULLNULL
2administrateur2NULLNULL
1administrateur1NULLNULL
2administrateur2NULLNULL

How to remove duplicates (leave only the 2 first rows) ?

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Delete Duplicate Rows

Oct 17, 2005

Hi,
I have the following query to select duplicate rows from the table. How can i delete them with out using temp table.

select UserName, Title, Name, ColWidth, Sequence
from table1 (nolock))
Group by UserName, Title, Name, ColWidth, Sequence
Having count(*) >1

Any help would be greately appreciated.
Thanks

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Rows Affected By Delete

May 28, 2004

Hello all,

Is there someway to tell how many rows were affected by a delete statement? A variable perhaps?

Any help would be appreciated!

Brian

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Delete Duplicate ROWS

Jun 18, 2008

How to delete duplicate records from table ? Is there any query for that ?
I am using SQL 2005.

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Delete Rows From A Table

Jun 20, 2008

Hi,

This is an easy one.

How do delete rows from a table?

I want to delete all the rows from the last month of a table so i have to be able to pass the month parameter to the delete statement.

Help.. plz.. i think this is an easy one

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Delete Rows From Table

May 16, 2012

In my table I have following current data. I want to delete duplicate records from table.I am trying following SQL statement, So I am getting desired output which is orange color in current data. I want to keep the desired output records and other all should be deleted. But complection is that in current data values in C5 and C6 are different.

select C1,C2,C3,C4,COUNT(*) from table_Delete
group by C1,C2,C3,C4
having COUNT(*) >= 1
ORDER BY COUNT(*) DESC

Current Data:

C1 C2 C3 C4 C5 C6
201 203224 325E 00000999
201 203224 325E 00009999
201 203224 325E 10001999
201 203224 325E 30003999

[code]....

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Delete Duplicate Rows

Jan 27, 2014

declare @a1 table
(id int not null identity(1,1),
phone decimal(18,0),
adress nvarchar(100))
insert @a1
(phone,adress)

[Code] ....

id phone address
----------- --------------------------------------- ----------------------------------------------------------------------------------------------------
1 111 new york
2 111 new york
3 111 new york
4 222 maxico
5 222 mexico

select phone,count(phone) as say from @a1 group by phone having count(phone)>1

phone say
--------------------------------------- -----------
111 3
222 2

How can I remove duplicate phone. For example

after delete
select*from @a1
select*from @a1

id phone address
----------- --------------------------------------- ----------------------------------------------------------------------------------------------------
1 111 new york
4 222 maxico

I wrote this to show for example in my real table have 50000 rows and 1751 duplicate rows.

[URL] .....

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How Do You Delete Duplicate Rows......

Jan 18, 2006

How do you delete duplicate rows when there are constraints or like in professional terms as we say "Referential Integrity".

Mr.Madhivanan i hope you remember me. Because it is after all purpose that binds us all together...purpose...it is inevitable Mr.Madhivanan.

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Scripted Delete Rows

Jul 23, 2005

Hi,I need to delete rows from my user tables dependant upon there nonexistence from another table:delete studentwhere student_id not in (select student_id from tblStudent)The reasons is convoluted, simplest explanation is that our operationalsystem allows the change of business keys. This wreaks havoc in thedata warehouse.So, I'm look for help on how I can delete rows from tables that have acolumn STUDENT_ID. I'd like the script to search for the tables, thenperform the delete.I don't know where information about user tables are stored, nor how toloop through the results to do the delete.Any Ideas are appreciated.

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Delete Of Mirrored Rows

Oct 6, 2005

hi.I've seen ways to delete duplicate rows.Can someone give me some sql to do this?I have a table with varchar table_name_start, varchar column_name,varchar table_name_end;it has rows like this:table1 col1 table2table1 col2 table 3table2 col1 table1I'd lke to delete the rows if they exist with the names swappedaround, i.e. like above since the first and third share a column nameand the table_name_start/end matches the others table_name_end/start,I'd like to delete one and leave the other.I'm scratching my head trying to figure this out.thanks

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Delete Particular Rows In A Table

Jul 25, 2006

hi alli hava eetable that is ,eename sal_______ ________suresh 100000ramsesh 100000raja 100000susjssj 100000dkddkd 100000jfdjfdjfd 100000so i want to delete from second to Fourth row by using Rownumber..Rownumber is not a column of eetable give some example

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Delete Rows From Table

Jul 20, 2005

I need a script that will delete the first 100000 rows of a table. Is this possible?

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To Delete Rows Of Within The ADO RecordSet

Jun 21, 2007

Hi!

I have a Foreach loop container where I populate a Ado recordset with some ids. Then I use another Foreach loop container to shred the Recordset and perform some task. Once Second Foreach Loop container is completed, my Recordset is getting populated again by the parent Foreach loop, except it is not discarding the data from before. Is there a way I can reset or delete rows from recordset after my second Foreach Loop container so that I don't duplicate rows in the Recordset.

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DELETE Rows In Excel

Jan 31, 2008

How to delete rows in an excel worksheet?

I have the following code in the exeutesqltask but i keep getting a syntx error.

'DELETE FROM 4DialMeters'

Remeber that this is an Excel source and I need to find out what the correct syntax is for the DELETE Statement in Excel.

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Delete Rows In Oracle From Sql Dts

Nov 18, 2007

hi everyone ,How are you all?
i'm working on sql DTS to transfer data from oracle to MS SQL2000 i did the transfer but i need to delete transfered data from oracle in DTS How i could do that?

regards,
Firas azzi

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To Delete Last N Inserted Rows

Jan 24, 2008

I have a table in which i have to delete last n inserted rows, how should i approach this , Sql server does not provide any ROWGUID BASED ON TIMESATAMP
i dnt think Rank() wil work either
Any suggestions?

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