Delete Row Only If Exist

Apr 25, 2014

ACADEMIC_YEAR COURSE_REFERENCE TERM
------------- ---------------- --------
2014 -1465586182 TERM4
2014 -772484485 TERM4

With the above data, user must check and delete the row only if exist

I have query some thing like this:

DELETE FROM epas_publish_course where COURSE_REFERENCE IN ( SELECT * FROM (SELECT COURSE_REFERENCE FROM epas_publish_course WHERE COURSE_REFERENCE) AS X) ;

which deleting the complete table but i need to delete one particular row...

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Can Seem To Get Delete And Exist To Work Right

Sep 18, 2007

Hi all,
I am writing a test result database in SQL 2K5 and one of the features I want to implement is a stored procedure that deletes the oldrecords while preserving a set number of records, the following is what my SP looks like


Procedure [dbo].[CleanResults]

@RecsToKeep bigInt,

@Output Int output

as

Declare @Date Datetime

Declare @Count bigint

set @Date = getdate()

Select @Count = Count(UniqueID) from [Main]

Print 'THE COUNT IS'

print @Count

if ( @Count > @RecsToKeep) begin



set @Count= @Count - @RecsToKeep

Print 'THE Number to delete is'

print @Count

select TOP(@Count) UniqueID from Main order By [Main].[TestDateTime] desc



Delete from [Main] where exists (select TOP(@Count) * from Main order By [Main].[TestDateTime] desc);



set @Output = @Count
end

else begin

set @Output = -1

end


whats odd is that the select staement will evaluate correctly and return the oldest record @Count record, however the delete stament removes all the records. An advice would be appriciated.

Thanks Christopher

PS Any advice for using TOP with variables in MSDE 2k (as opposed to 2k5) would be appreciated

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Aug 26, 2005

Hello,

I need to delete rows from one table that appear in another table.
For example:
newnames has fname, lname, age
oldnames has fname, lname, age

So, I want to be able to remove the rows from newname where there are rows in oldnames. This should be simple enough.

This is what I'm trying to use but it is deleting everything from oldnames.

delete from oldname
select * from newnames

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Nov 23, 2006

Hi all,

I am developing an ETL wherein the requirement is to do an incremental load and at the same time, if there is a record that got deleted in the Source delete it from the destination too, makes sense.

The approach am doing is, pick data from the SRC and Destination, pass it onto a Merge join component, do a Full Outer join, then pass the rows to a conditional split. Newly Added records and updated records I can handle, how do I handle the Deleted records?

Am I correct in the way I am doing or there is something better to handle this?

Thanks in advance

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Sep 28, 2007

Hi! Is there a way to delete a record from multiple tables at the same time? Thanks for the help!

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Oct 3, 2000

Dear friends,

I am thinkking there has to be away to do this in a SQL
statement.

can't you do some kind of...

Create Procedure sp_update_users
@User_Id Int,
@Title_Id Int

AS
UPDATE USERS
DELETE WHERE @User_ID = User_Id and @Title_Id = @Title_Id
ELSE
INSERT INTO USERS VALUES (@User_ID,@Title_Id;)

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Apr 30, 2008

help on CREATE stored procedure delete and after insert where not exist
in one stored procedure
in table_B



Code Snippet
CREATE PROCEDURE [dbo].[delete_from_table_B]
@empID varchar(500)
as
DELETE FROM table_B
WHERE charindex(','+CONVERT(varchar,[empID])+',',','+@empID+',') > 0

---HELP from this ponit how to insert ? after where not exist


IF @@ROWCOUNT > 0

BEGIN


insert into
table_B
set (empID,ShiftDate,shiftType)
where not exist

select
empID,ShiftDate,shiftType
from
table_A





table_A

empID fname ShiftDate shiftType
----------------------------------------------------

111 aaaa 15/03/2008 1
111 aaaa 16/03/2008 2
111 aaaa 18/03/2008 3
111 aaaa 19/03/2008 4
111 aaaa 20/03/2008 5
111 aaaa 21/03/2008 6
999 qqq 21/03/2008 9
222 bbb 02/05/2008 7
222 bbb 03/05/2008 8
222 bbb 04/05/2008 9
222 bbb 05/05/2008 7
222 bbb 06/05/2008 9
222 bbb 07/05/2008 3
222 bbb 08/05/2008 4
222 bbb 09/05/2008 5
333 ccc 03/04/2008 9
333 ccc 04/04/2008 2


TABLE B

empID fname ShiftDate shiftType
----------------------------------------------------

111 aaaa 15/03/2008 1
111 aaaa 16/03/2008 2
111 aaaa 18/03/2008 3
111 aaaa 19/03/2008 4
111 aaaa 20/03/2008 5
111 aaaa 21/03/2008 6


TNX for the help

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Mar 17, 2008

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Primary Table: TBL_PCL_LENS_DATA
PK: Serial Number
PK: ProcessedDateTime

Child Table: TBL_VERIFICATION
PK: Serial Number

Thanks,
Sean

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May 29, 2008

'****************************************************************************

Cmd.CommandText = "Drop Table Raj"



Cmd.ExecuteNonQuery()


Cmd.CommandText = "Select * Into Raj From XXX"



Cmd.ExecuteNonQuery()

'**************************************************************************



This generates error that Table already exist.

If Wait 1 sec then execute statement then it works fine.



Thanks in Advance

Piyush Verma

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Dec 3, 2013

I have data as below: select ID,code,go,back from tableA

ID code go back
2 C US UK
2 A UK US
1 A US UK
1 Z UK US
1 C UK US
1 A US UK

I only want to pull out whole ID group which code Z exist. I tried as below:

select ID,code,go,back from tableA A
where exists
( select ID,go,back
from tableA B with (nolock)
where A.ID = B.ID
and A.code='Z')

But it only appear:

ID code go back
1 Z UK US

How can I appear with the group as well?

ID code go back
1 A US UK
1 Z UK US
1 C UK US
1 A US UK

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Nov 24, 2005

Hello all,

I have a branch a data, now i need to search through a database to check whther it is exist in that database or not, any syggestion?
Example:

Now i have data 123, 234, 345. Let say data 123 and 234 is exist in that database, but data 345 is not exist in that database.

What SQL am i suitable to use to get those result exist(123, 234) and those result not exist (345)?

The database structure is someting like this:
ID NAME O_NAME
-- ----- --------
1 120 123
2 234 234
3 345 345

1) The data consider 'exist' if it exist in column NAME or column O_NAME (either one).

2) The data consider 'not exist' if it not exist in neither NAME column nor O_NAME column

After the SQL query, someting is expected:

Exist:

ID NAME O_NAME
-- ----- --------
1 120 123
2 234 234

Not Exist:

ID NAME O_NAME
-- ----- --------
3 345 345

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Oct 23, 2004

Hello:
Need some serious help with this one...

Background:
Am working on completing an ORM that can not only handles CRUD actions -- but that can also updates the structure of a table transparently when the class defs change. Reason for this is that I can't get the SQL scripts that would work for updating a software on SqlServer to be portable to other DBMS systems. Doing it by code, rather than SQL batch has a chance of making cross-platform, updateable, software...

Anyway, because it needs to be cross-DBMS capable, the constraints are that the system used must work for the lowest common denominator....ie, a 'recipe' of steps that will work on all DBMS's.

The Problem:
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This appears possible in SqlServer too --...as long as there are no CASCADE operations.
Truncate table doesn't seem to be the solution, nor drop, as they all seem to trigger a Cascade delete in the Foreign Table.

So -- please correct me if I am wrong here -- it appears that the operations would be
along the lines of:
a) Remove the Foreign Key references
b) Copy the table structure, and make a new temp table, adding the column
c) Copy the data over
d) Add the FK relations, that used to be in the first table, to the new table
e) Delete the original
f) Done?

The questions are:
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b) Anyone know of a good clean way to get, and save these constraints to reapply them to the new table. Hopefully with some cross platform ADO.NET solution? GetSchema etc appears to me to be very dbms dependant?
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Nov 13, 2006

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The database is in First Normal Form.

I have some tables that are child tables with two foreign keyes to two different parent tables, for example:

Table A
/
Table B Table C
/
Table D

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SQL sees this as cyclical, because if I delete a row in table A, both table B and table C would try to delete their child rows in table D.

Ok, so I thought, no biggie, I'll just use delete triggers. So I created delete triggers that will delete child rows in table B and table C when deleting a row in table A. Then I created triggers in both Table B and Table C that would delete child rows in Table D.

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This is an example of my delete trigger:

CREATE TRIGGER [DeleteA] ON A
FOR DELETE
AS
Delete from B where MeetingID = ID;
Delete from C where MeetingID = ID;

And then Table B and C both have delete triggers to delete child rows in table D. But it never gets to that point, none of the triggers execute because the above error happens first.

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So the question is, how do I maintain referential integrity and also have the database delete child rows, keeping in mind that the cascading deletes will not work because of the multiple cascade paths (which are certainly required).

Hope this makes sense...
Thanks,
Josh


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Tables are:

Brokers and it's PK is BID

The 2nd table is Broker_Rates which also has a BID table.

I'm trying to figure out a t-sql statement that will parse through all the recrods in the Broker_Rates table and delete the record if there isn't a match for the BID record in the brokers table.

I know this isn't correct syntax but should hopefully clear up what I'm asking

DELETE FROM Broker_Rates

WHERE (Broker_Rates.BID <> Broker.BID)

Thanks

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Nov 26, 2007

this is my Delete Query NO 1
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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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Sep 16, 2013

The requirement is: I should allow single row delete from a table but not bulk delete. An audit table should get updated if there is any single delete or single update. So I wrote the triggers as follows: for single and bulk delete

ALTER TRIGGER [dbo].[TRG_Delete_Bulk_tbl_attendance]
ON [dbo].[tbl_attendance]
AFTER DELETE
AS

[code]...

When I try to run the website, the database error I am getting is:Transaction count after EXECUTE indicates that a COMMIT or ROLLBACK TRANSACTION statement is missing. Previous count = 0, current count = 1.

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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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Cannot Amend Or Delete Subscription And Cannot Delete Report.

Nov 20, 2007



Hi,

I have a problem with one report on my server. A user has requested that I exclude him from receiving a timed email subscription to several reports. I was able to amend all the subscriptions except one. When I try to remove his email address from the subscription I receive this error:

An internal error occurred on the report server. See the error log for more details. (rsInternalError) Get Online Help







For more information about this error navigate to the report server on the local server machine, or enable remote errors


Online no help couldn't offer any advice at all, so I thought I'd just delete the subscription and recreate it again, but I receive the same message. "Okay, no problem, I'll just delete the report and redeploy it and set up the subscription so all the other users aren't affected", says I. "Oh, no!", says the report server, and then it give me this message:





System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Data.SqlClient.SqlException: Only members of sysadmin role are allowed to update or delete jobs owned by a different login. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at Microsoft.ReportingServices.Library.InstrumentedSqlCommand.ExecuteNonQuery() at Microsoft.ReportingServices.Library.DBInterface.DeleteObject(String objectName) at Microsoft.ReportingServices.Library.RSService._DeleteItem(String item) at Microsoft.ReportingServices.Library.RSService.ExecuteBatch(Guid batchId) at Microsoft.ReportingServices.WebServer.ReportingService2005.ExecuteBatch() --- End of inner exception stack trace ---



What's even weirder is that I'm the owner and creator of the report and I'm a system admin and content manager on the report server and I set up the subscription when the report was initially deployed. Surely I should have sufficient rights to fart around with this subscription/report as I see fit?

I have rebooted the server, redeployed the report, checked credentials on the data source and tried amending and deleting from both the report manager and management studio but still I am prevented from doing so.

Any help would be much appreciated.

Thanks in advance,

Paul

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Delete From Vs Delete With Subquery In Transaction

Feb 23, 2006

First, this is not my code.

This one is weird and I am missing something fundamental on this one. A developer was getting a timeout with this...


CREATE PROCEDURE p_CM_DeleteBatch
(
@SubmitterTranID VARCHAR(50)
)
AS
DECLARE
@COUNT INT,
@COMMIT INT

SET @COUNT = 0
SET @COMMIT = 1 --DO NOT CHANGE THIS. The Operation will be commited only when this value is 1

select @COUNT = COUNT(*) from claimsreceived
where (claimstatus NOT IN ('Keyed', 'Imported')) AND
SubmitterTranID = @SubmitterTranID

IF (@COUNT = 0) --This means that that Claims under this Batch have not been adjudicated & it is safe to delete
BEGIN
BEGIN TRANSACTION
DELETE FROM INVOICECLAIMMAPPING WHERE CLMRECDID IN (SELECT DISTINCT CLMRECDID FROM CLAIMSRECEIVED WHERE SUBMITTERTRANID = @SUBMITTERTRANID)
IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE FROM ClaimsPayment WHERE SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE FROM ClaimsPaymentServices WHERE SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE FROM ClaimsreceivedPayorServices where ClmRecdPyID in (SELECT ClmRecdPyID
FROM ClaimsReceivedPayors
WHERE SubmitterTranID = @SubmitterTranID)

IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE FROM ClaimsReceivedPayors WHERE ClmRecdid in (SELECT ClmRecdID
FROM ClaimsReceived
WHERE SubmitterTranID = @SubmitterTranID)
IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE FROM ClaimsReceivedServices WHERE SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0
DELETE FROM ClaimsReceived WHERE SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0
DELETE FROM BATCHLOGCLAIMS WHERE SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0

IF (@COMMIT = 1)
BEGIN
--ROLLBACK TRANSACTION --For Testing Purpose ONLY
COMMIT TRANSACTION
RETURN (0)
END
ELSE
BEGIN
ROLLBACK TRANSACTION
RETURN (-1)
END
END
ELSE
BEGIN
RaisError ('This Batch cannot be deleted. It has claim(s) which has been Adjudicated', 16, 1)
END
GO


I applied a couple of indices and got ride of the uncorrelated subqueries


CREATE PROCEDURE p_CM_DeleteBatch
(
@SubmitterTranID VARCHAR(50)
)
AS
DECLARE
@COUNT INT,
@COMMIT INT

SET @COUNT = 0
SET @COMMIT = 1 --DO NOT CHANGE THIS. The Operation will be commited only when this value is 1

select @COUNT = COUNT(*) from claimsreceived
where (claimstatus NOT IN ('Keyed', 'Imported')) AND
SubmitterTranID = @SubmitterTranID

IF (@COUNT = 0) --This means that that Claims under this Batch have not been adjudicated & it is safe to delete
BEGIN
BEGIN TRANSACTION

DELETE INVOICECLAIMMAPPING
FROM INVOICECLAIMMAPPING
JOIN CLAIMSRECEIVED
ON INVOICECLAIMMAPPING.CLMRECDID = CLAIMSRECEIVED.CLMRECDID
WHERE CLAIMSRECEIVED.SUBMITTERTRANID = @SUBMITTERTRANID

IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE FROM ClaimsPayment
WHERE SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE FROM ClaimsPaymentServices WHERE SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE ClaimsreceivedPayorServices
FROM ClaimsreceivedPayorServices
JOIN ClaimsReceivedPayors
ON ClaimsreceivedPayorServices.ClmRecdPyID = ClaimsReceivedPayors.ClmRecPyID
WHERE ClaimsReceivedPayors.SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE ClaimsReceivedPayors
FROM ClaimsReceivedPayors
JOIN ClaimsReceived
ON ClaimsReceivedPayors.ClmRecdid = ClaimsReceived.ClmRecdid
WHERE ClaimsReceived.SubmitterTranID = @SubmitterTranID

IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE FROM ClaimsReceivedServices WHERE SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE FROM ClaimsReceived WHERE SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0

DELETE FROM BATCHLOGCLAIMS WHERE SubmitterTranID = @SubmitterTranID
IF (@@ERROR <> 0)
SET @COMMIT = 0

IF (@COMMIT = 1)
BEGIN
--ROLLBACK TRANSACTION --For Testing Purpose ONLY
COMMIT TRANSACTION
RETURN (0)
END
ELSE
BEGIN
ROLLBACK TRANSACTION
RETURN (-1)
END
END
ELSE
BEGIN
RaisError ('This Batch cannot be deleted. It has claim(s) which has been Adjudicated', 16, 1)
END
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON

GO


Suddenly this constraint was being violated with the change


ALTER TABLE [dbo].[ClaimsReceivedPayorServices] ADD CONSTRAINT [FK_ClaimsReceivedPayorServices_CLAIMSRECEIVEDPAYOR S] FOREIGN KEY
(
[ClmRecdPyID]
) REFERENCES [CLAIMSRECEIVEDPAYORS] (
[CLMRECPYID]
)


Is the delete on ClaimsReceivedPayors starting before the delete on ClaimsreceivedPayorServices finishes? If so why would it matter between the join and subquery? This one is making me depressed because I can not explain it.

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Apr 3, 2008

Hi all

Need some advice solving a little problem I have with my database!

Current setup:

I have a person table that is made up of 39 columns. I also allow for person records to be deleted but I do this by having another table I call LogicallyDeletedrecords. This table is made up of the PersonId, Reason for deletion/suppression and a date time stamp. To access Live records I created a view based on my Person table which contains a WHERE clause to exclude records that exist in the LogicallyDeletedrecords. Similarly, I have another view DeadPersonData which contains Person records that have been removed. Hope it all makes sense so far! Now on to my worries!

The problem:

My Person table contains 9+ million records. The LogicallyDeletedrecords table has 500k+ but I anticipate further growth over the coming weeks/months. My worry is that my LivePersonData view will be too slow to access as my LogicallyDeletedrecords table grows. What’s more, as part of my Load routine, I have to make sure that Person data loaded on to the system is excluded if that same person exists as a deleted member. Both of these actions could slow down my system as the deleted table grows.

My thoughts:

I’ve been thinking of physically deleting dead Person records from my person table (possibly creating an archive table to hold them). But then if I delete them how do I cross check the details when new Person details get loaded?! As I said, my current LogicallyDeletedrecords table holds the PersonId, ReasonDeleted and CreationStamp. The only way is to add further columns which I use to match Person Details?

Any design suggestions would be welcome!

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Feb 1, 2007

Hi seniors

there are two tables involve in replication let say table1 and replicated table is also rep.table1.

we are not deleting records physically in table1 so only a bit in table1 has true when u want to delete a record but the strange thing is that replication agaent report that this is hard delete operation on table1 so download and report hard delete operation and delete the record in replicated table which is very crucial.

plz let me know where am i wrong and how i put it into right way.

there is no triggers on published tables and noother trigger is created on published table.

regards

Ahmad Drshen

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ppl,
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Hi Guys

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This question is related to my post: how to copy a table from one database to another

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=292125&SiteID=1

I decided to start a new thread for this issue because it is so frustrating. I am hoping someone knows the answer to this specific question.

Why would sql server insist that a database does not exist even though it obviously does exist?

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