Delete Records When You Have A Primary Key Of Two Columns
Jun 12, 2006
Hi everyone.
I have two tables: the catalog table and the detail table.
The two tables are joined by a two-columns key.
I want to make a Delete sentence for delete all the rows in the Catalog table that aren't in the detail table, in SQL Server.
The only problem is that the key is composed by two colums.
If the Key was maded of one column, that would be easy, like this:
DELETE FROM CATALOG
WHERE CATALOGKEY NOT IN (SELECT CATALOGKEY FROM DETAIL)
But it is possible to make a delete sentence if the key has two columns ?
Thanks
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Feb 5, 2012
I want to delete the duplicate record from a table keeping 1 record aside.
My base table is-info
idnameclass
2abc6a
3abc6a
4abc6a
1abc6a
2abc6a
4abc6a
4abc6a
3abc6a
3abc6a
1abc6a
2abc6a
5abc6a
id-int
name-text
class-varchar
(there is no primary key in this table)
Now I want the result in following way:
idnameclass
2abc6a
3abc6a
4abc6a
1abc6a
I have tried the following query and its running fine but its not a dynamic stuff.
DELETE top (SELECT COUNT(*)-1 FROM aaa WHERE id ='3') --or put some number
FROM aaa
WHERE id ='3'-- or put some number
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Jul 7, 2006
I frequently have the problem where I have a list of items to delete ina temp table, such asProjectId Description------------- ----------------1 test12 test43 test34 test2And I want to delete all those items from another table.. What is thebest way to do that? If I use two IN clauses it will do it where itmatches anything in both, not the exact combination of the two. I can'tdo joins in a delete clause like an update, so how is this typicallyhandled?The only way I can see so far to get around it is to concatenate thecolumns like CAST(ProjectId as varchar) + '-' + Description and do anIN clause on that which is pretty nasty.Any better way?
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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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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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Jul 20, 2005
Does anyone know how to delete a primary key with T-SQL?triocchu
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Sep 13, 2006
Ok, I'm really new at this, but I am looking for a way to automatically insert new records into tables. I have one primary table with a primary key id that is automatically generated on insert and 3 other tables that have foreign keys pointing to the primary key. Is there a way to automatically create new records in the foreign tables that will have the new id? Would this be a job for a trigger, stored procedure? I admit I haven't studied up on those yet--I am learning things as I need them. Thanks.
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May 26, 2008
Hi,
How do I delete data which is a Foreign Key in another table?
For example;
string query = "DELETE * from user_details WHERE user_ID = '" +userID.Text+ "';
The user_ID is the Primary Key in the user_details table and also a Foreign Key in other tables.
Thank you. (:
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Jul 23, 2005
Hello,I want to delete duplicate rows in a table when no primary key isdefined.For eg: If we have table1 with data as below,Suma 23 100Suma 23 100I want to delete a row from this table and retain only one row.I tried deleting self joins and exists operator. But it is deletingboth the rows. I want to retain one row.Can anybody help me out.Thanks in advance,Suma--Posted using the http://www.dbforumz.com interface, at author's requestArticles individually checked for conformance to usenet standardsTopic URL: http://www.dbforumz.com/General-Dis...pict221110.htmlVisit Topic URL to contact author (reg. req'd). Report abuse: http://www.dbforumz.com/eform.php?p=760520
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Dec 7, 2001
Hi Guys,
When I create a table with a composit primary key with 18columns. I get this error
"Cannot specify more than 16 column names for index key list. 17 specified."
I really have to have these columns as primary key.
Is there any workaround to create this table;
Thanks
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Apr 15, 2007
How can I create a primary key on two columns? I could not find any sensible code sample or description how it should be done. It is clear from MSDN that it is possible but there are no examples.
There is a textbox "Included Columns" in one of the tools for setting primary keys for one column but it does not allow me to enter anything.
Thanks.
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Feb 16, 2006
I'm getting a foreign key error as well as Indentity Insert error when I'm trying to run a stored proc that inserts values from another table..help!!
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Jan 12, 2007
Hello all. I need to extract the column names that form the primary key group on a table in SQL Server. I have a table called Account and it contains ten columns. The primary key consists of two columns - MasterAccountID, AccountID. This primary key is a unique constraint and is clustered (it acts as an index as well as a primary key group). I have tried the following to no avail:exec sp_pkeys Account -> returns no rowsexec sp_helpindex Account -> throws an error stating that the object 'Account' does not existIf I run the following SQL statement, I can see all of the PK_* constraints in the database, so I know they are there:select * from information_schema.table_constraintswhere constraInt_type IN ('PRIMARY KEY','FOREIGN KEY') Again, I need to be able to specify a table name and have it return the columns (don't care if it returns extra fields) that make up the primary key fields for that table. Thanks!
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Jan 5, 2006
I want to get the Primary Key Columns in Arrays by sending a tablename. I am using SQL Server 2000 and I want to make a find utility in VB.net whichwill work for all the forms; I have tables with one Primary key and some tables with composite Primary keys. I used to do this in VB 6 by making a function which fills the Primary Keys inList Box (I require to fill in list box), now I need to get in array. Can some one tell me the migration of the following VB 6 Code? This was written for the MS Access, I need same for SQL Server, I cannot find Table Def and Index Object in VB.net 2003. Public Sub GetFieldsFromDatabase (ldbDatabase As Database, lsTableName AsString) Dim lttabDef As TableDef Dim liCounter As Integer Dim liLoop As Integer Dim idxLoop As Index Dim fldLoop As Field
With ldbDatabase For Each lttabDef In .TableDefs If lttabDef.Name = lsTableName Then liCounter = lttabDef.Fields.Count For liLoop = 0 To liCounter - 1 cboFieldLists.List(liLoop) = lttabDef.Fields(liLoop).Name Next liLoop For Each idxLoop In lttabDef.Indexes With idxLoop lblIndexName = .Name If .Primary Then liCounter = 0 For Each fldLoop In .Fields cboPrimaryKeys.List(liCounter) = fldLoop.Name liCounter = liCounter + 1 Next fldLoop End If End With Next cboFieldLists.ListIndex = 0 If cboPrimaryKeys.ListCount > 0 Then cboPrimaryKeys.ListIndex = 0 End If Exit For End If Next End WithEnd Sub
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Oct 17, 2005
I am currently undertaking a review of the primary keys in a SQL Server2000 database with a view to improving performance of queries.I have heard that, in the case of compound primary keys, it isimportant to select the correct order for the columns within the key.For instance, imagine a table called OrderLine which has primary keycolumns as follows-LedgerOrderNumberOrderLineNumberThe theory I have heard is that columns with the most distinct valuesshould come first. In this case, Ledger is likely to have a maximum of6 distinct values, OrderNumber a maximum of 10 million and OrderLine upto 99. Based on this supposition I believe the best order would be-OrderNumberOrderLineNumberLedgerI have performed a few rudimentary tests that appear to bear this out.I was wondering if anyone else has tried something similar and if sowhat was the result?Thanks,Ross
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Feb 23, 2006
Hi to all,
I'm a new member here and i would like to ask for some help regarding my problem. first i ahve an incremental primary key with format to something like this: 001-01-001, 001-01-002, 001-01-003, etc. My problem is that i want to insert (supply) the 'missing' or 'gaps' in my primary key field like for example: ..., 001-01-067, 001-01-068, 001-01-070. i want to insert the value 001-01-069 after the record 001-01-068. I have several gaps some ranging from several numbers like 005-04-007,005-04-020 which has a 13 records gap. Is there a way for stored procedure to solve this one?Thanks in advance.
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Sep 21, 2005
I am new to SQL administration.[color=blue]>From a list of IDs that are the primary key in one table (i.e. Customer[/color]Table), I want to make changes in tables that use those IDs as aforeign key.Basically I want to say:If fk_ID is in list [1,2,3,4,5] thendo these statements to that recordEnd ifWhere do I begin?Thanks for help with this low-level view of SQL programming.-tom
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Sep 4, 2007
Hello all
quick question-- Im looking for the most effiecient way to extract data daily from a table with some 9.5 mill records and growing. These are transaction records and ideally I would like to bring over the last days transactions and add them to my existing table. I cannot use the transaction date as sometime we have to operate in an "Offline" mode where the records are brought over sometime later. This could be days are unfortunetaly a week or more. there are some 30 fields in the transaction table so is there a more efficient way to do this simply creating a concatenated key?? Would it be more effiecient to drop and recreate the table daily? that sounds extreme so wanted to get a few ideas.
Thanks in Advance
km
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Feb 23, 2006
my table :
CREATE TABLE [dbo].[users] (
[ID] [int] NOT NULL ,
[A1] [nvarchar] (100) NULL ,
[A2] [nvarchar] (100) NULL ,
[A3] [nvarchar] (100) NULL
) ON [PRIMARY]
i must keep ID columns as primary key
ALTER TABLE [dbo].[users] WITH NOCHECK ADD
CONSTRAINT [PK_users] PRIMARY KEY CLUSTERED
(
[ID]
) ON [PRIMARY]
but now A1+A2 must be unique
how can i do it ?
thank you
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May 29, 2007
Hi ,
Plz help me.
The scenario is as follows
I have a db on sql server 2005.I have replicated the db on sql server 2000.All the data counts seems to be correct.But the online websites are not able to execute queries generating error(Microsoft OLE DB Provider for sql server error '80040e21'.Multiple step OLE DB operation generated errors.Check each OLE DB status value,if available.No work was done.)Same web aspcode is working for other db (which were replicated from sql server 2000).
Also one more thing that was observed is as follows:
1)Prmary key was replicated for some of the tables.When primary keys were removed manually report executed fine.
Thanks in advance
Satish
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May 23, 2015
Can a Primary Key column also be a Identity column? The reason I am asking this question is because I have created a table and each time I insert data into the Address Table I am also inserting the AddressID, how do I get the Primary Key (AddressID column) to self generate ID values.
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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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Jun 27, 2007
Hi all,
I’m trying to export 120 tables from SQL server 2000 to SQL server 2005 with their Primary and corresponding records.
Is there way to do this?
Thanks for any help.
Abrahim
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Jun 11, 2007
I upsized an access database with a key / index on ordernumber and linenumber.
However if I open the table in the Management Studio the records aren't ordered this way (same goes for select * from table) I get:
Ordernumber
Linenumber
200724001
37
200724004
3
200724006
33
200724001
3
200724011
19
200724014
5
200724006
37
200724011
19
200724006
28
Same goes for my crystal reports files, since the records aren't ordered by ordernumber / linenumber all my formulas go bezerk..
Am I wrong thinking the records should be ordered according to the prim. index?
Please help because I don't want to have to change all my 40+ reports to include an "ORDER BY"
Best regards,
Mike
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Sep 24, 2014
I've two tables A, B. In A table, I need to define the primary key with combination of 2 columns and this Primary Key will be a foreign key in table B. Based on these PK and FK I'll be writing a join to get the second column in table B.
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