Possible To Avoid The FILLING Of GAP (created By Deleting A Record) In The Identity Column ?
Jun 18, 2007
Hi all,
(I am using SQL Server 2005)
I have created a new 'CUSTOMERS' table and created a colum 'CustomerID' as an Identity column.
Now, a problem I find is that when I delete a particular record, its Identity value is used automatically for the New record I insert later!
I do not want to re-use the already used Identity value.
I just want to have the last CustomerID to be higher that all the previous ones.
Is there any way to do this?
Thanking you in advance,
Tomy
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Jul 25, 2015
I have a four tables called plandescription, plandetail and analysisdetail. The table plandescription has the columns DetailQuestionID which is the primary and identity column and a QuestionDescription column.
The table plandetail consists of the column PlanDetailID which the primary and identity column, DetailQuestionID which is the foreign key attribute of plandescription table and a planID column.
The third table analysisdetail consists of a analysisID which the primary and identity column, PlanDetailID which is the foreign key attribute of plandetail table and a scenario.
Below is the schema of the three tables
I have a two web form that will insert, update and delete data into these three tables in a two transaction. One web form will perform CRUD operations in plandescription and plandetail table. When the user inserts QuestionDescription and planid in this web form, I will insert the QuestionDescription Value in the plandescription table and will generate a DetailQuestionID value and this value is fed to the plandetail table with the planid. Here I will generate a PlanDetailID.
Once this transaction is done, I will show the second web form in which the user enters the scenario and this will be mapped with the plandescription using the PlanDetailID.
This schema cannot be changes as this is the client requirement. When I insert values I don’t have any problem. However when I update existing data, I need to delete existing PlanDetailID in the plandetail table and recreate PlanDetailID data for that DetailQuestionID and planID. This is because, the user will be adding or deleting a planID associated with the QuestionDescription.
Once I recreate PlanDetailID for that DetailQuestionID and planID, I need to update the old PlanDetailID with the new PlanDetailID in the third table analysisdetail for the associated analysisID.
I created a #Temp table called #DetailTable to insert the values analysisID, planid and old PlanDetailID and new PlanDetailID so that I can have them in update statement once I delete the data from plandetail table for that PlanDetailID.
Then I deleted the plandetailid from the plandetail table and recreate PlanDetailID for that DetailQuestionID. During my recreation I fetched the new PlanDetailID’s created into another temp table called #InsertedRows
After this I am running a while loop to update the temp table #DetailTable with the newly created PlanDetailID for the appropriate planID’s. The problem is here. When I have the same number of planID’s for example 2 planID’s 1,2 I will have only two old PlanDetailID and new PlanDetailID for that planID and analysisID.But When I add a new PlanID or remove a existing planID I am getting null value for that newly added or deleted planID. This is affecting my update statement of analysisdetail table as PlanDetailID cannot be null.
I tried to remove the Null value from the #DetailTable by running the update statement of analysis detail in a while loop however its not working.
DECLARE @categoryid INT = 8
DECLARE @DetailQuestionID INT = 1380
/*------- I need the query to run for the below three data.
Here i'm updating my planids that already exists in my database*/
DECLARE @planids VARCHAR(MAX) = '2,4,5'
[code].....
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Oct 8, 2007
Hello,
In my application I am using Identity columns. When some rows are deleted from table, This identity values are not filling the gap. I mean My current identity is 5. That means 1 to 5 rows sequentially i inserted. If I am deleting 3rd and 4th rows, next identity will still continue with 6. So is there any method to fill the gap between rows
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Jan 16, 2006
Hi, All:Please help. I use sql server as back end and Access 2003 as front end(everything is DAO).A table on SQL server has an identity column as the key.We have trouble on adding records to this table using the following SQL.strSQL = "INSERT INTO myTableOnSQLServer (A, B, C, D, E) SELECT A, B, C, D,E FROM myTableonAccessLocal"db.execute strSQLThe schema of the table "myTableOnSQLServer" and the schema of the table"myTableonAccessLocal" are all the same except that the "myTableOnSQLServer"has an identity column (ID). The key of the "myTableOnSQLServer" is "ID" andthe table "myTableonAccessLocal" does not have a key.When we try to run the query, it gives errors indicating the key is violatedor missing.Should I figure out the autonumber for it first and then add to the SQLserver table?Many thanks,HS
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Oct 7, 2015
I have table contains more columns and first column have ID int not null primary key and auto increment by 1 seed by 1 the ID 165000 record and instant Jump to 166000 and increment by 1 ...
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Jun 23, 2006
Hello
Using Visual Studio 2005 Prof and SQL Server everywhere.
How do get the identity column value after insert record.
With SQL Server 2005, its quite easy to get by creating and insert statement on the tabledapter ( Insert statement followed by a select statement where identitycolumn = scope_identity())
How do this is sql everywhere??
regards
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May 26, 2008
I have not yet succeeded in getting an aswer to this in a previous post, so I'll try again and rephrase the question
I have 2 fields, 1 called 'Created' the other 'Updated'
I would like to create a function, user procedure ,whatever in SQL something along the lines of...
FUNCTION myUID()
RETURN Date(Today)+Time(Now)+USERNAME
END FUNCTION
so that the value returned by the above pseudo code is something like '20080526T21:01:05.620SamL' where the date part is in yyyy0m0d format
I have got this working fine for the default 'Created' field but the calculated (and persisted) field comes up with something about being non-deterministic and refuses to play
Clearly something along these lines is a very straightforward requirement (I have it working fine in my 20+ year old database) , but have spent a week trying to get an answer (even from this forum) without success, so would be grateful for any help that you can provide me with to get round this barrier
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Jun 19, 2008
Hi,
I am having problem in bulk update of a sql server table haning identity column from a datatable( has no identity column) using sqlbulkcopy. I tried several approaches, but it does not show any error nor is the table getting updated. But the identity value seems to getting increased every time.
thanks.
varun
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May 9, 2008
Hi,
I've just recently learned that being an identity seed-column doesn't guarantee that you will always get unique values. It can double up and cause a violation of PK. If so, is there a work around this that doesn't involve a REINDEX? Cause if im home and my client suddenly experiences this in the middle of a busy day, that would be a total disaster. Any ideas on how i can avoid this or a workaround maybe? Thanks!
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Jan 6, 2004
I'm buildng an application using the ADO.NET OleDB providor in order to maintain back end compatabiity with both SQL Server and Access Jet4.0. I need to get the Identity key of the new row created as a result of the following insert statement.
OLEDB COMMANT TEXT:
"insert into tblPerson (LastName,FirstName,SSN,BirthDate,Family) values( ?, ?,?,?,?)";
I assume I need to add a select statement immediately following the insert. Can anyone help?
PS - not using stored procedures due to Access jet4.0 limitation
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Mar 7, 2004
hi Friends...
I have got a ordermaster table in which the orderid field is autoincremental.Now I also have an Ordercode field which is a combination of [current (orderid)-LICON)]
eg 1-LICON ..
I achieve this using the following query ...
insert into ordermaster(ordercode,orderamt,orderdate) select cast(max(orderid)+1 as varchar)+'-LICON' as ordercode,1000,'3/6/2004' from ordermaster
But I think the above query could lead to an inconsistent state ....If say following occurs :
1) USER1 reads max orderid as 1
2) User2 also reads max orderid as 1
3)USER 1 inserts record with ordercode as 2-LICON.
4)USER 2 will also insert record for ordercode as 2-LICON since max orderid read by USER2 is also the same as USER1.
How do I avoid this....I know I there are LOcktypes. But aren't locktypes used when we are updating same records....
Please help me out .I really need help in ths context
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Oct 9, 2007
I have three tables
1. membership table(aspnet_membership table)
2. User Contacts table
3. Address table
These three table have relation ship with one another through a UserId field.
How will you set up cascaded delete on these tables, Like if I delete a user in the membership table I want the related records in the other tables to be deleted as well. Cascaded delete is it something done through code, or is it definde when the tables are created.
Please advice.
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Jun 23, 2005
Hey Guys,I have Performance Monitor running and storing the network usage to my MsSQL database, and this is done a few times a minute. I have a page that then shows show much of my bandwidth is being used. As you can gather, the database quickly starts filling up with hundrreds of records so I could do with a script that delete these records. I cant simply delete all records because that would cause my webpage to fail so I need a way to delete all records apart from the latest one. Wondering if anyone would know how I could do this?
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Apr 6, 2006
First of all, I'm new to the forums, and I'm still getting started with VBEE and SQL.
I'm building a simple Windows Application that has a SQL Database with three tables, related to each other. In all of them I need to set one column as a simple index for the rows (1, 2, 3... etc), to work as a PK and relate to the other tables' FKs.
I've set the property Identity Specification of the column to Yes, and added some rows of data for testing. If you just keep adding rows, the PK columns work fine, but if you start deleting rows, the numbering gets fragmented, and the relations between the tables lose integrity.
I've tried the MSDN Online Help topics, but they just tell you this:
If an identity column exists for a table with frequent deletions, gaps can occur between identity values. If you want to avoid such gaps, do not use the identity property.
So, my questions are: is there another way around this problem? How to number rows automatically and re-number them when a row is deleted, and keep the table relations working? It has anything to do with constraints?
Sorry if my question was already answered, I really couldn't find anything like my problem searching the forums. Thanks in advance.
(and also, sorry for the bad english... )
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Mar 19, 2008
I have a table with several datetime fields but they all list just the correct date. The time is always 12:00:00 AM. I don't have a field that records the actual time a record was created. I have a timestamp column, but it appears to get updated everytime the DB backs up. Is there a way using the date fields I have or otherwise, to determine the time a record was created?
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Nov 19, 2004
hi to all,
How to delete duplicate record in the recordset?
Thanks...
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Feb 27, 2006
Hi SQL gurus,
I have a form that depending on the outcome, will either add, update or delete a record.
1) If there IS NO record of "this" and "that" and Request("x") <> "" it will add a new record.
2) If there IS a record for "this" and "that" and Request("x") <> "" it will update column 1,2,3 or 4.
3) If there is a record for "this" and "that" and Request("x") = "" it will delete the record.
My problem is if there is a value in request("1") it works fine, but if there is no value in ("1") and there is a value in 2, 3, or 4 it will delete the record.
If request("1") <> "" OR request("2") <> "" OR request("3") <> "" OR request("4") <> "" Then
sSQL = "SELECT * FROM some_column WHERE this = '" & request("this) & "' and that = '" & request("that) & "'"
oRS.Open sSQL,oConn,adOpenKeySet,adLockOptimistic
If oRS.EOF Then
oRS.Addnew
oRS.Fields("this") = request("this")
ors.Fields("that") = request("that")
Else
ors.Movefirst
End If
oRS.fields("1") = request("1")
oRS.fields("2") = request("2")
oRS.fields("3") = request("3")
oRS.fields("4") = request("4")
oRS.Update
oRS.Close
Else
sSQL = "Delete from some_table Where this = '" & '" & request("this) & "' & "' AND that = '" & '" & request("that) & "' & "'"
objCmd.ActiveConnection = oConn
objCmd.CommandType = adCmdText
objCmd.CommandText = sSQL
objCmd.Execute
End if
Hope I explained that okay.
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Jul 20, 2005
Hi All,I am using Microsoft SQL Enterprise Manager version 8.0 and havecreated a view from a combination of 4 different tables. I would liketo be able to go into sql and open the view and select a row anddelete that row however this seem impossible right now. I am not sureif it's possible to delete a row from a view?? Or could it be thatthese tables are all interconnected and in order to delete a recordthat is joined to one or more of the tables it has to be deleted atthe top level of the join heirarchy etc etc. (do you understand what imean?) Can this be done??Thanks in advance,Erin
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Nov 25, 2006
hai dears i want to delete a row from the table on the basis of key sent in beusers obj
"connection myConn = new connection();" this is ma own class that establishes the connetion which works fine in other caseseg insert
'' it shows no error or exception ' but do not delete record
so plz tell me how to do this...
or whats wrong in this
public void delete(BEusers obj)
{
connection myConn = new connection();
oCommand = new SqlCommand("sp_delete_tbl_users_by_userid",myConn.sqlCon);
oCommand.CommandType = CommandType.StoredProcedure;
try {
myConn.OpenConnection();
sp = oCommand.Parameters.Add("@User_Id", SqlDbType.VarChar);
sp.Size = 20;
sp.Value = obj.user_id;
oCommand.ExecuteNonQuery();
}
catch (Exception oException)
{ throw oException; }
finally { myConn.CloseConnection(); }
}
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Aug 26, 2005
Hey Guys,I have been trying to work out how I would delete a record that was created more then 10 minutes ago.I can use this to delete records older then a day.DELETE FROM DownloadQueue WHERE Downloading = '0' AND QueuePos = '0' AND DateTime < GETDATE() - 1Just need something now that will do it for just 10 minutes.Cheers.
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Mar 26, 2008
Hi ,
i am using sql server 2005.
i have one table where i need to find records that have same citycode and hospitalcode and doctorcode then delete the record keeping only one record of them
my problem is table structure have idendtity column which is unique.
that is m table structure is something like
recid citycode hospcode doctorcode otherdesp
1 0001 hp001 d0001 ...
2 0002 hp002 d0002 ...
3 0001 hp001 d0001 ...
4 0002 hp002 d0002 ...
please suggest
thank you
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Oct 4, 2006
Hi,
I've noticed that after the first record from a ResultSet is deleted, HasRows property throws an exception like "The current row was deleted." Method ReadFirst() throws similar exception as well.
More details:
1. Create a ResultSet: ExecuteResultSet(ResultSetOptions.Updatable | ResultSetOptions.Scrollable | ResultSetOptions.Sensitive)
2. Let's say, there is no records in the resultset. Insert two new ones. Then call: ReadAbsolute(0); Delete(); HasRows; and the exception is thrown.
3. Then you can call ReadFirst() or Read with the same result.
4. Now call ReadAbsolute(0). It returns true. Call HasRows, ReadFirst() or Read() and you will get the exception each time.
I tried to explain this with the fact that Delete() doesn't change the current position of the ResultSet. But I don't see why that would mess the HasRows property or why after ReadAbsolute(0) retuns true, HasRows or ReadFirst() doesn't work.
Could anybody tell me what the problem is?
Thank you.
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Oct 3, 2006
Hi,
I've noticed that after the first record from a ResultSet is deleted, HasRows property throws an exception like "The current row was deleted." Method ReadFirst() throws similar exception as well.
More details:
1. Create a ResultSet: ExecuteResultSet(ResultSetOptions.Updatable | ResultSetOptions.Scrollable | ResultSetOptions.Sensitive)
2. Let's say, there is no records in the resultset. Insert two new ones. Then call: ReadAbsolute(0); Delete(); HasRows; and the exception is thrown.
3. Then you can call ReadFirst() or Read with the same result.
4. Now call ReadAbsolute(0). It returns true. Call HasRows, ReadFirst() or Read() and you will get the exception each time.
I tried to explain this with the fact that Delete() doesn't change the current position of the ResultSet. But I don't see why that would mess the HasRows property or why after ReadAbsolute(0) retuns true, HasRows or ReadFirst() doesn't work.
Could anybody tell me what the problem is?
Thank you.
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Aug 12, 2009
when i alter non identity column to identity column using this Query alter table testid alter column test int identity(1,1) then i got this error message Msg 156, Level 15, State 1, Line 3 Incorrect syntax near the keyword 'identity'.
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Jun 12, 2008
I am using the tables created by the aspnet_regsql.exe tool for security. Basically, I need to ensure that an account named Administrator is never deleted. I also have a role named administrator, and I need to make sure that Administrator is never removed from the administrator role.Can I create a trigger to ensure that the Administrator is never deleted and that the Administrator is never removed from the Administrator role? I know it will probably be two separate triggers: one on the aspnet_users table and one on the aspnet_usersinroles table.Thanks a lot for the help!
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Oct 9, 2007
I can not get this stored procedure to delete my records...
I have a
contact table
RecordID
FirstName
LastName
etc
and a Address table
RecordID
Street
Zip
Town
Country
And a Relation table
RecordID
ContactID
AddressID
CreateDate
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[bc_Contact_Delete]
@ContactID int
AS
--SET NOCOUNT ON
BEGIN TRY
BEGIN TRANSACTION -- Start the transaction
-- Delete all Adresses
DELETE FROM [Address]
WHERE
RecordId in (SELECT ca.AdressId from [ContactAddress] ca
where
ca.ContactID = @ContactID)
-- Delete all Relations
DELETE FROM [ContactAdress]
WHERE ContactID = @ContactID
--- Delete Kontakt
DELETE FROM [Contact] WHERE (([RecordId] = @ContactID))
COMMIT TRANSACTION
END TRY
BEGIN CATCH
-- Whoops, there was an error
ROLLBACK TRANSACTION
-- Raise an error with the
-- details of the exception
DECLARE @ErrMsg nvarchar(4000),
@ErrSeverity int
SELECT @ErrMsg = ERROR_MESSAGE(),
@ErrSeverity = ERROR_SEVERITY()
RAISERROR(@ErrMsg, @ErrSeverity, 1)
END CATCH
RETURN
My Errormessage is
The DELETE statement conflicted with the REFERENCE constraint "FK_bc_ContactAdress_bc_Address". The conflict occurred in database "bContacts", table "dbo.ContactAddress", column 'AdressID'.
Can someone please post me an advice?
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Mar 11, 1999
I can't delete records for a SQL Server table when I attached the table to Microsoft Access 97. I time out when I try to delete the record. However I can query the table.
I use the standard ODBC setup, do I need to do anything else beside using the standard Access link.
Thanks in advance
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Jan 25, 2015
I have table of three column first column is an ID column. However at creation of the table i have not set this column to auto increment. Then i have copied 50 rows in another table to this table then set the ID column values to zero.
Now I have changed the ID column to auto increment seed=1 increment=1 but the problem is i couldn't figure out how to update this ID column with zero value set to each row with this auto increment values so the ID column would have values from 1-50. Is there a away to do this?
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Sep 19, 2005
Ok,I just need to know how to get the last record inserted by the highestIDENTITY number. Even if the computer was rebooted and it was twoweeks ago. (Does not have to do with the session).Any help is appreciated.Thanks,Trint
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Jun 20, 2014
I am trying to add a column to query based on the value of another column in the query.
I first tried creating a calculated field in SSRS 2008 with this statement:
=IIF(Fields!ChargeableFlag.Value=1,Fields!Negamt.Value,0)
The report runs but I get a "#ERROR" when I place the field on the report.
I next tried creating a new column with the SQL statement:
SELECT Project.ProjectCode AS PC, Project.StatusCode AS SC, Time.StandardHours AS Hours,
Time.StandardChargeAmt AS StdAmt, Time.TaskUID as UID,
Time.StandardChargeRate as Rate, ChargeableFlag, 'Bill' =
Case
When TaskRule.ChargeableFlag = 0 Then 'Non-Bill'
When TaskRule.ChargeableFlag = 1 Then 'Billable'
[Code] .....
This query, less the case statement for BLAmt creates the dataset for the SSRS. Adding the Case statement for the BLAmt produces the error: "Invalid column name 'Negamt'."
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Mar 30, 2006
Dear all
I would like to ask one sql question , it's that possible to use statement delete my columns ?
select * from tablename where columna = '--delete from tablename '
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Sep 1, 2006
Hi
I have a table with a user column and other columns. User column id the primary key.
I want to create a copy of the record where the user="user1" and insert that copy in the same table in a new created record. But I want the new record to have a value of "user2" in the user column instead of "user1" since it's a primary key
Thanks.
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Jul 17, 2007
Hi there, newbie here.
I'm building a web application that allows for tagging of items, using ASP.NET 2.0, C# and SQL Server.
I have my USERS, ITEMS and TAGS separated out into three tables, with an intersection table to connect them.
Imagine a user has found an item they are interested in and is about to tag it. They type their tag into a textbox and hit Enter.
Here's what I want to do:
I want to search the TagText column in my TAGS table, to see if the chosen tag is already in the table. If it is, the existing entry will be used in the new relationship the user is creating. Thus I avoid inserting a duplicate value in this column and save space. If the value is not already in the column, a new entry will be created.
Here's where I'm up to:
I can type a tag into a textbox and then feed it to a query, which returns any matches to a GridView control.
Now I'm stuck... I imagine I have to use "if else" scenario, but I'm unsure of the code I'll have to use. I also think that maybe ADO.NET could help me here, but I have not yet delved into this. Can anyone give me a few pointers to help me along?
Cheers!
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