How To Repeat Delete Records And Sleep Awhile In T-SQL
Feb 14, 2008
Hi:
I have one table in which there are almost 800,000 records, and I tried to delete them by SQL stored-procedure in which executing SQL like this: "delete from tablename where date='YYYYMMDD'", once I started this procedure, I noticed SQL server will take most of CPU resources in a short period, but that's not acceptable. and there are some other useful records in this table, we can't use Drop Table.
So my question is "can we delete 1000 records and then sleep awhile, and repeat until all these records are deleted !"
Any refernece will be appreciated, thanks!
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Feb 25, 2013
When I run a report for a purchase order, the report duplicates records for product codes.For example the purchase order is: P000976, the report display the product code twice when it should only appear once. 45-5540 appears twice.
P000976 09-17-2012 15,040.00 15,040.00 0.00
45-5540 "Lordotic Cervical Spacer 10mm
Lordotic Cervical Spacer 10mm" 20 20 0
45-5540 "Lordotic Cervical Spacer 10mm
Lordotic Cervical Spacer 10mm" 20 20 0
When I put the report's SQL in SQL server and run the sql by seeing where the code cause the additional product code it is this line within the SQL:
join all_product_codes_VW p on q.distpartno = p.distpartno
select q.specialrequirement
, q.distpartno
, q.toproduce
, q.prodbegindate
, q.distributor
[code]....
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May 19, 2012
I am using Master Data Service for couple of months now. I can load, update, merge and soft delete data in MDS. Occasionally we even have to hard delete data from MDS. If we keep on soft deleting records in a MDS table eventually there will be huge number of soft deleted records. Is there an easy way to hard delete all the soft deleted records from all MDS tables in a specific Model.
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Dec 15, 2004
Hi,
I have this query:
Code:
SELECT LB.WBS2, LB.WBS3, LedgerAR.WBS2 AS Expr1, LedgerAR.WBS3 AS Expr2, LB.AmtBud AS amtbud, SUM(LedgerAR.Amount * - 1) AS amt
FROM LB LEFT OUTER JOIN
LedgerAR ON LedgerAR.WBS1 = LB.WBS1 AND LedgerAR.WBS2 = LB.WBS2 AND LedgerAR.WBS3 = LB.WBS3
WHERE (LB.WBS1 = '001-298')
GROUP BY LB.WBS2, LB.WBS3, LedgerAR.WBS2, LedgerAR.WBS3, LB.AmtBud
it produces the following output:
Code:
WBS2WBS3Expr1Expr2amtbudamt
014101014101300095
1217010121701080007290
12170804000
121709012170903200065960
121711012171101800034450
121712012171204400038010
12171402000
1217170121717013500935
12171804500
1217220500
12172601000
12175001217500800622.5
12221604000
I want to sum the amtbud column like I did for the amt column. and group everything based on WBS2. However, I keep getting an outrageous amount for the amtbud. This is what is seems to be summing up:
Code:
01410101410130000
014101014101300047.5
12170901217090320000
12170901217090320000
12170901217090320000
12170901217090320000
12170901217090320000
12170901217090320000
12170901217090320000
12170901217090320000
12170901217090320000
etc....
Any help will be appreciated I am just stumped.
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Aug 6, 2007
HI,
I have been trying to solve the locking problem from past couple of days. Please help mee!!
Scenario:
--------------
I have a SSIS package in which 2 data flow tasks. 1st data flow task deletes records from a 5 tables and the 2nd data flow task should insert records into 1 of the five tables after the success of 1st data flow task. This scenario runs in Transacation.
The above scenrio in the 2nd data flow task hangs in runtime. It does not complete. with sp_who2 command i could see that there is an intent share lock(LK_M_IS) on the table and the status is SUSPENDED.
I dont know how to come out of this locking. Please help.
Thanks ,
Sunil
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Jan 31, 2007
Hello, its hard to explain, i have a table like this: --userpage_visitors-- id bigint owner nvarchar(20) visitor nvarchar(20) created datetime
Then i have some code like this: (@Visitor is send to the stored proc)DECLARE @lastuser nvarchar(20)SELECT TOP 1 @lastuser = visitor FROM userpage_visitors WHERE (owner = @UserName) ORDER BY created DESCIF (@lastuser <> @Visitor)BEGININSERT INTO userpage_visitors (owner, visitor, created) VALUES (@UserName, @Visitor, @Created)-- delete hereEND
Now after i have inserted the new visitor into the table, i need to clean the table... so each user should have maximum of 30 visitors, so if the user i inserted above is the 31st user then i need to delete the first user, so i always have 30 fresch visitors,, if they have less then 30 visitors then nothing should happen. The question is, how can i get the 31th post? in mysql you can say that you want post 30, 31, but in mssql you only have the TOP to select limited posts, any ideas?
Patrick
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Mar 21, 2007
Hello, I have 3 tables with their columns as follows: + LabelsInDocs [LabelId] PK FK , [DocsId] PK FK + Labels [LabelId] PK , [LabelName] + Docs [DocId] PK , [DocUrl] I set Cascade Delete On so when I delete a Doc all records in LabelsInDocs will be deleted. However, when a Doc is deleted I want also to delete all records in Labels for the labels which do not have any Doc associated to it in LabelsInDocs. How can I do this? Thanks, Miguel
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Jun 3, 2008
hello friends.
i have table1 in aspnetdb.mdf and i have picturefile of columname.. datatype of picturefile is vchar(50)
i want to delete my record automatically from my table1 after two weeks from inserting my record date..
i want to delete my picture file that located /pictures/tree.jpg (example).. pictures/tree.jpg was uploaded as picturefile on table1 by user before
how can i do this ?
cheers
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Nov 29, 2003
Currently i writing a program to delete Records in the SQL database using VB.net language...
BUT i not sure whether i am right???
Pls provide me with the coding using a command object to delete records in SQL database...thank...however i tried the codes below but not working ...Pls help
Dim StrConnection As String = "workstation id=""ET-T15404-PC1"";integrated security=SSPI; etc
Dim objConnection As New SqlConnection(strConnection)
Dim strSQL As String = "Delete Seller.Admin FROMSeller WHERE Seller.no=tb.no"
Dim dbComm As New SqlCommand(strSQL, objConnection)
objConnection.Open()
dbComm.ExecuteNonQuery
objConnecion.Close()
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Jun 29, 2005
Hi.
there are 300 records on the table.
the table has a field of "ID (autonumber)"
How can I delete records without latest 20 records?
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Oct 9, 2006
There are 30 tables in my database and I need to delete all records within a date range. Could anyone help me?
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Sep 20, 2005
Hello,I have a database called articlesI want to delete all articles from a subgroup e.g. DVDIf I am in the enterprisemanager what steps do I have to take to do thisthanks in advancePaul
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Jul 20, 2005
I have some records that will not delete, whenever I run a deletestatement in the Query analyzer, it never completes the statement, andI am only deleting one record at a time. Can anyone tell me why arecord wouldn't delete?
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Nov 8, 2006
Hi!
New on this
Is there a way on a sql sever where i can
delete som records one time every day
like if a field in my table is < getdate()
Alvin
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Aug 30, 2007
Is there a way to delete all records in a SQL Server 2005 database? A function or a script?
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Sep 8, 2007
I have a table, gdbdoc, that contains record-key pairs, linking records in another table. There is no significance in the order of the link: if records A and B are linked, then I don't care whether the link is A -> B or B -> A, and my normal query logic is SELECT ... Where DCIindiid = A ... union SELECT ... Where DCILinkid = A(DCIindiid = key1, DCILinkid = Key2)
The link-creation process normally checks whether there is already a link in either direction. Thus before creating a link A->B the logic checks to see whether either the A->B or B->A link record exists, and a new link is not created if the link already exists in either direction. However recently one of my processes bypassed the reverse-link check, and I've ended up with a few hundred cases where there is both an A->B link and a B->A link.
If I run a query: - select gd1.* from gdbdoc as gd1 join gdbdoc as gd2 on gd1.dciindiid = gd2.dcilinkid and gd1.dcilinkid = gd2.dciindiid
this displays all the records where one record links A -> B and there is also another record that links B -> A.
How do I write a query to delete ONE of the pair of duplicate records? I have two problems: -
Problem 1: Table gdbdoc is keyed on (DCIindiid, DCILinkid). Both guids are needed to create a unique key, and the table does not have a single key field. You can't write DELETE gdbdoc where DCIIndiid, DCILinkid IN select gd1.dciindiid, gd1.linkid from gdbdoc as gd1 join gdbdoc as gd2 on gd1.dciindiid = gd2.dcilinkid and gd1.dcilinkid = gd2.dciindiid
as the DELETE ... SELECT ... syntax only seems to support a single returned value.
Problem 2. If we solved problem 1, we would (I think) delete BOTH the A->B link and the B->A link , whereas I only want to delete one of these links.
Afterthought: Problem 2 seems easily solvable: add "Where gd1.DCIindiid < gd1.DCILinkid" to the DELETE ... statement. Although the concept of "<" doesn't really mean anything with a guid, this is accepted by SQL, and halves the number of records returned by the select. Obviously I don't care which of the two links (A->B or B->A) is deleted.
Regards, Robert Barnes
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Jul 30, 2004
I use a tabel for storin log data from a mail server. I noticed that I'm getting duplicate records, is there a way to delete the socond and/or third entry so I dont have any duplicates?
I need this done in SP.
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Jun 1, 2000
Hello,
I would like to create a job that runs ones a day to delete records in a table that are older than one day. Any ideas?
Thanks,
Nina Melhem
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Oct 19, 2000
Sorry for the new thread.
I have a userprofile table. There are a lot of duplicate records in this table. e.g.
USERID-----LASTNAME---EMAILADDRESS----CREATEDATE
----------------------------------------------------------------------
1----------A-----------A@yahoo.com---------2000-09-05 16:07:00.000
2----------A-----------A@yahoo.com---------2000-09-10 16:07:00.000
3----------A-----------A@yahoo.com---------2000-09-15 16:07:00.000
Userid is auto number, lastname and emailaddress are PK.
I want to delete duplicate records. If lastname and emailaddress are the same, only keep a record which createdate is the most newest date. See above example I only want to the record which userid is 3. I have alreday created a code which I attached below. This code onle keep a record which userid is 1.
Anybody can help me to solve this problem? Thanks.
============== My current code ====================
delete from userprofile where userprofile.userid in
--list all rows that have duplicates
(select p.userid
from userprofile as p
where exists
(select lastname, emailaddress
from userprofile
where lastname = p.lastname and emailaddress = p.emailaddress
group by lastname, emailaddress
having count (userid)>1))
and userprofile.userid not in
--list on row from each set of duplicate
(select min(p.userid)
from userprofile as p
where exists
(select lastname, emailaddress
from userprofile
where lastname = p.lastname and emailaddress = p.emailaddress
group by lastname, emailaddress
having count (userid)>1)
group by lastname, emailaddress)
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Jul 20, 2005
:confused: Urgent!!
Hi there. I use MS SQL server. I would like to separate the data from one table to two tables refer to two reference tables and the following conditions:
Let say these two reference tables are called:
Table A & Table B
Group A:
1. Same date in Table A & Table B
2. Same ID in Table A & Table B (ID is not unique)
3. Same name in Table A & Table B (Name is not unique)
Combine all of these three conditions for unique identifier.
I used the following SQL code to separate the required data that match the above conditions to the new table.
(Code)
select a.Project, a.Site, a.S_number, a.Field_ID, a.Method, a.Analyte, a.Result, a.Units,
a.Qualifier, a.Dilution_Factor, a.Reporting_limit, a.Recovery_, a.Matrix, a.CAS_Number, a.Sample_Date,
a.Received_Date, a.Prep_Date, a.Analysis_Date, a.Batch_ID, a.Data_Package_num_SDG, a.Lab_Sample_ID,
a.Lab into APPL_union_exist from APPL_union_update a, Before_01012004_report b
where a.Field_ID = b.[Field Sample] and a.Sample_Date = b.Collected and a.Analyte = b.Analyte
However, I don't know how to delete the data that copied to the new table in original table, or separate that to the new table. Wish someone can help me. Thanks a lot
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Mar 29, 2007
Hi,
i don't know if this is the right forum to post to, but here i go:
I'm having a problem...
I need to delete several records having as criteria their pk.
The deletion is made using SqlParameter in the code and a stored procedure on server.
as far as i know, i can do this, either using a IN list:
- build and pass the list of id's from code to the sp:
delete from tbl where attachment.id in (1,2,3)
OR
- execute a simple delete several times.
So far i tried first option, but i get errors in converting the list to ints; that is what the sql engine says.
I prefer this option because i think is faster and requires less roundtrips to the sql server.
My questions are:
1. how do i build a sane IN list?
2. is it worth to use a delete in a loop? the records that must be deleted are 5 at most, per job.
1 job can have [0..5] attachments.
Thank you,
Daniel
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Nov 1, 2004
I want to modify a current DTS job I have. It simply copies records from one table to another after a given date. The catch is I only have read priviliges on the source table. I currently delete all the records from the destination table but have to use Query Analyzer to do it and then run the current package that is just a simple select statement. The statement in the DTS job is something like:
SELECT *
FROM tablename
WHERE date_field > '2004-09-30'
I have been running this multiple times per month since every week or so I want to get more recent data to run a couple of reports. The source table is not ours, it is in a different department, so I can only read off of it. The destination server is ours so I have full priviliges there. I assume the fact that the source server allows me limited access that I cannot run a "delete from tablename" first even though it is on our table? Is there another way to set this up? Thanks again. You guys are the best.
ddave
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Nov 1, 2006
I have a database in Simple mode from which I wish to delete several million rows of one table (not all rows so 'TRUNCATE TABLE' is no good), without making the transaction log file grow to several GB in size. Any ideas??? I'm almost at the point where I might create a new table and copy the records I want to keep instead...
Thanks, Simon.
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May 7, 2008
Hello everyone,
I have a little dilemma. I have a table ALLTABLE that has duplicate records and I want to delete them. ALLTABLE has these columns with these values for example:
Policy Premium Class State Entity Number
ADC-WC-0010005-0 25476 63 31 1
ADC-WC-0010005-0 25476 63 31 2
ADC-WC-0010005-0 25476 63 31 3
ADC-WC-0010005-0 1457 63 29 4
ADC-WC-0010092-1 2322 63 37 1
ADC-WC-0010344-0 515 63 01 1
ADC-WC-0010344-0 515 63 01 2
As you can see there is some duplicates in the first 3 rows and the final 2 (the entity number is the only difference). I want the table to look like this:
Policy Premium Class State Entity Number
ADC-WC-0010005-0 25476 63 31 1
ADC-WC-0010005-0 1457 63 29 4
ADC-WC-0010092-1 2322 63 37 1
ADC-WC-0010344-0 515 63 01 1
Thank you so much for the help. It is really appreciated.
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Jun 5, 2008
Hi Guys,
I have the following table
customerid customername
------------------------
1 AAA
1 AAA
2 BBB
2 BBB
2 BBB
3 CCC
3 CCC
Here, I need to delete duplicate records from the above table.
After deleting the duplicate records the table should be
like this:
customerid customername
------------------------
1 AAA
2 BBB
3 CCC
Can any one help me!!!!!!
Regards
js.reddy
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Jun 24, 2008
Hi,
Please help me in constructing a query that will delete duplicate records in a table;
Please see my table structure below:
CREATE TABLE LATEST_DATA (
[ID] int NOT NULL,
[IPage] varchar(100) NULL,
[IDevice] varchar(255) NULL,
[IGroup] varchar(255) NULL,
[IField] varchar(255) NULL,
[IValue] varchar(255) NULL,
[IIcon] int NULL,
[IID] int NULL,
[ReportID] int NOT NULL,
[RVersion] varchar(255) NULL,
[RHost] varchar(255) NULL,
[RUser] varchar(255) NULL,
[RLocation] varchar(255) NULL,
[RDateTime] varchar(16) NULL,
[RComplete] bit NOT NULL
);
-- Insert Latest data
INSERT
INTO LATEST_DATA
SELECT
[Item].[ID],
[Item].[IPage],
[Item].[IDevice],
[Item].[IGroup],
[Item].[IField],
[Item].[IValue],
[Item].[IIcon],
[Item].[IID],
[Item].[ReportID] ,
[Report].[RVersion],
[Report].[RHost],
[Report].[RUser],
[Report].[RLocation],
[Report].[RDateTime],
[Report].[RComplete]
FROM
[dbo].[Item],
[dbo].[Report]
WHERE
[Report].[ID] = [ITEM].[ReportID] AND
[Report].[ID] = ( SELECT
MAX([Report].[ID])
FROM
[dbo].[Report]
);
thanks
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Feb 9, 2007
Hi,
I have two tables one called students and location.
I want to delete the location and all records in student corrosponding to that location, can any help or point me in the right direction.
Many Thanks
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Apr 13, 2007
Hi,
I was wondering if any one could help me. I have two tables from which I need to delete information from. I have an excel spreadsheet which has the reecords in need to delete.
Is there any way I can delete them all in one go instead of going through each delete query manually?
Many thanks
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Nov 28, 2007
In SQL Server 2005 is there a way to delete records from a table when the user logs out of the software? Other db products allow you to create a trigger on the logout event. Does SQL Server have an equivalent?
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Jan 8, 2008
Hello,
I have the following problem:
2 tables: both have the same pk values.
one table must be deleted based on a filter (I mean the table is not delete completely but only some records), I would like to delete same records in the second table.
for ex:
table 1: pk: 1,2,3,4,5
table 2: pk: 1,2,3,4,5
table 1: deleting 1,2, 3 thus also in table 2 pk: 1,2,3 must be deleted.
At the and of process Table1 and Table2 must have the same records (always also in the case of failure, errors and so on ).
The target is avoid using triggers.
OUTPUT is not useful because it writes what is deleted (or may be useful but how to use it?).
How can I do?
Thank
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Apr 1, 2004
Dear all:
Does sql server has BIF like vb sleep()?
I want to use this kind of function to balance the sql server loading,
or do you have better way to implement this task?
thanks for your kindly assistance
regards,
Stanley Huang
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Apr 28, 2004
im writing a DTS package and i have am using vbscript to check if a file exists on an ftp server.
I can't figure out how to make my process sleep b/t checks on if the file exists.
in vb u can just
Declare Sub Sleep Lib "kernel32.dll" (ByVal dwMilliseconds As Long)
but i cant seem to find a counterpart in vbscript.
thanks in advance,
pete
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Jul 20, 2005
HiI am trying to use the WAITFOR function to make each loop in a cursoroccur every 4 seconds until the curdb is emptythe prtocedure is as follows---------------- startcreate procedure q_additionalrabatt@additionalrabatt float,@ordernr intASdeclare @ordradnr intdeclare curdb cursor for select ordernr, ordradnr from orp whereordernr = @ordernrfor read onlyopen curdbfetch curdb into @ordernr, @ordradnrwhile @@fetch_status = 0beginupdateorpsetorp.rabatt1 = (orp.rabatt1 + @additionalrabatt)whereorp.ordernr = @ordernr andorp.ordradnr = @ordradnrfetch curdb into @ordernr, @ordradnrendclose curdbdeallocate curdb------------------- endI need to make sure, that before it fetches the next row it waits 4seconds before executing the next loop.Matt
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