Delete Rows Where...
Oct 17, 2007Hi 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 To Run Delete Query / Delete Several Rows Just By One Click ?
Feb 16, 2008I'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)
View 2 Replies View RelatedDelete Doesn't Delete Rows, But @@ROWCOUNT Says It Did
Aug 20, 2007I 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?
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, 2007I 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 RelatedTransact SQL :: Table Trigger To Delete All Rows Before Inserting Rows
Jul 24, 2015I 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]....
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);
Delete Many Rows
Mar 17, 2006Hi 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.
View 12 Replies View RelatedDelete Rows
Oct 19, 2006Hi
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
How Can I Keep Only The Top Ten Rows And Delete The Rest
Dec 17, 2007I 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?
View 17 Replies View RelatedSQL Query - Delete All Rows Bar The Last 10? Help Please!
Jan 6, 2008Hi,
I'm really not very good at SQL sadly, so would really appreciate any help.
I'm basically working on a website that has a chatroom. I want it so the chatroom table only holds, say 15 lines of chat, then once a new line of chat is entered the last line in the table is deleted, so the table always has a maximum of just 15 rows.
The fields are:
MessageID
Poster
Message
DateTime
I've tried my best, but just don't know how to do it.
I suppose it's something like:
SELECT TOP 15 * FROM Chatroom ORDER BY MessageID DESC - this gives me the last 15 rows.
Then I need a delete statement to delete the rest?! Sorry, I am very bad at SQL, so any help would be great. This is written in a stored procedure.
Can the stored procedure pick up whether there are 15 or more rows in the table, and if so then delete all bar the newest 15 rows of chat?
To summarise: I want a stored procedure that checks if 15 or more rows exist, if they do then delete all bar the newest 15 rows.
Thanks,
Ricky
DELETE Rows In MSDE
Sep 6, 2004Hi..
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?.
Delete A Row And All Other Rows Thats Linked To It
Apr 6, 2006Hii 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?
View 1 Replies View RelatedDelete Duplicate Rows
Jun 25, 2000I 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.
Delete Duplicate Rows Using T-SQL
Jan 20, 2000How do you delete duplicate rows in a table so only one row is left in the table, using T-SQL.
View 1 Replies View RelatedDELETE DUPLICATE ROWS
Mar 30, 1999CAN 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
Delete Only 2 Out Of 4 Identical Rows
Jun 19, 2004I 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
Delete Duplicate Rows
Jan 13, 2005Suppose that we have the following rows in a MSSQL table :
1administrateur1NULLNULL
2administrateur2NULLNULL
1administrateur1NULLNULL
2administrateur2NULLNULL
How to remove duplicates (leave only the 2 first rows) ?
Delete Duplicate Rows
Oct 17, 2005Hi,
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
Rows Affected By Delete
May 28, 2004Hello all,
Is there someway to tell how many rows were affected by a delete statement? A variable perhaps?
Any help would be appreciated!
Brian
Delete Duplicate ROWS
Jun 18, 2008How to delete duplicate records from table ? Is there any query for that ?
I am using SQL 2005.
Delete Rows From A Table
Jun 20, 2008Hi,
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
Delete Rows From Table
May 16, 2012In 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]....
Delete Duplicate Rows
Jan 27, 2014declare @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] .....
How Do You Delete Duplicate Rows......
Jan 18, 2006How 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.
Scripted Delete Rows
Jul 23, 2005Hi,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.
View 2 Replies View RelatedDelete Of Mirrored Rows
Oct 6, 2005hi.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
View 6 Replies View RelatedDelete Particular Rows In A Table
Jul 25, 2006hi 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
View 8 Replies View RelatedDelete Rows From Table
Jul 20, 2005I need a script that will delete the first 100000 rows of a table. Is this possible?
View 3 Replies View RelatedTo Delete Rows Of Within The ADO RecordSet
Jun 21, 2007Hi!
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.
DELETE Rows In Excel
Jan 31, 2008How 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.
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
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?
How To Delete Rows In Tables...
Jan 25, 2007I need to delete some rows in some of my tables after tranfering data from my OLTP to SQL database.
Im using SQL 2000
I have tried with the following:
Delete from fsalesinvoiceline
Join dsalesinvoiceheader on
Fsalesinvoiceline.salesid= dsalesinvoiceheader.salesid and
Fsalesinvoiceline.company= dsalesinvoiceheader.company
Where dsalesinvoiceheader.billtocustomerno=€™INDTAST DEBITORNUMMER€™
Go
Delete from dsalesinvoiceheader
Where dsalesinvoiceheader.billtocustomerno=€™INDTAST DEBITORNUMMER€™
I get the following error message:
[Microsoft][ODBC SQL Server Driver][SQL Server]Incorrect syntax near the keyword 'JOIN'
What am I doing wrong?
/Søren D. Jensen