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.
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.
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.
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
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
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
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)
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
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?
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
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?
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)
: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
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.
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.
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:
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.
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
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?
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?
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?).
I've got an application I've written that should be able to (using a table) insert, update or delete records in SQL Server 2005. It can insert and update fine but it cannot delete any records. I'm totally stumped for how to figure out what's going on. I can remote on to the Windows 2003 Enterprise Server without any trouble so I should be able to read any log files or open the SQL Managemenent tools. How do I figure out what the issue is? It's a very strange thing and I'm stumped.
Hi, All records of a table must be deleted if a field (field1) contains NULL or is made empty by a previous update command. I did this but it only works when the field is made empty, not when it contains NULL: dim field1 as string = ""...sql = "delete from mytable WHERE (field1=@field1)" comd = New SqlCommand(sql, oConnection) comd.Parameters.AddWithValue("@field1", field1) comd.ExecuteNonQuery() How can i do that? Thanks Tartuffe
I have inherited a database with no primary keys in it. :(
There are, of course, duplicate records by the "logical key", i.e., the list of columns that should have been used in a primary key, if they only had one. I can easily identify when I have duplicate records using group by and having clauses. That's the easy part.I can identify duplicate records by "key columns" and the subset of those records that are "identical duplicates on all columns". I need to delete the "extra copies"
I can't do it by hand using sql server manager, it won't let me, because it recognizes that more than one row matches that row. In Oracle, I would use the pseudo-column "rowid", which would expose the internal identifier for the row.SqlServer doesn't appear to have this concept. is there another way other than creating an empty shadow table, copying all the distinct duplicate records into the shadow table, deleting all the duplicates in the old table, then copying the distinct duplicates back into the old table.
I want to delete my record after ten days of the Posted date(field)..how do I do it? I'm able to insert date(short date , long time) to the database. I'm using sql server and C#. this is what I have so far.I would appreciate your help..
I am little confused in writing the exact query i.e filling the correct details in the query . To simplify let me explain....
I am using the query as
delete MYTABLE where datediff(dd,loaddate,getdate())>5
I have a table now with loadate column which gets the default date and time . The loadate shows correct date and time when the data was imported in the table .
Now suppose if i want to delete previous 5 days records from today ( for e.g today is 20/08/2002 3:40:00 PM ) ideally it should delete all records which are 5 days older from today . i.e from 20/08/2002 3:40:00 PM to 15/08/2002 3:40:00 PM ) But when i execute the datediff command , it deletes the records previous than 15/08/2002 till 15/08/2002. The records from 15/08/2002 to 20/08/2002 remain intact .
I am getting some different results .
Am i missing something in the query or i am confused about the calculation of the dates the datediff command performs .
Is the logic correct or i am missing someting important ?
i have go master records as well child records how do i delete all the master records so that all my corresponding child records get deleted ,as we do in oracle using undeleted cascade
