Identity / Auto Incrementing Column
Feb 16, 2006
Hi,
I have an auto incrementing int column setup which serves as my unique primary key. Just wondering what happens when the auto increment reaches the limit? Will it recycle numbers from the begining (who's rows have obviously been deleted by this stage)?
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Feb 19, 2008
My Identity value column is not autoincrementing, its seed is set to 1, and increment set to 1.
yet when i click the auto generated 'Add New Record' button in the BindingNavigator control set (in a form where it is populated with databound text boxes), this Identity column is not auto incremented?
And if i try to write a value to this column, i get the error telling me this column cannot be written to. Yet if i do not write to it, then i get "This column does not allow nulls"
To load my data i am using:
Code Snippet
'clear dataset
Me.DsQuote.Clear()
'fill the datagrid with data from tblQuoteID
Me.TblQuoteIDTableAdapter.Fill(Me.DsQuote.tblQuoteID)
and to save data im using:
Code Snippet
Me.Validate()
'end data edit
Me.TblQuoteIDBindingSource.EndEdit()
'update the dataset with table data
Me.TblQuoteIDTableAdapter.Update(DsQuote.tblQuoteID)
anything im doing wrong? this data is being viewed in a datagrid btw.
cheers
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Jun 17, 2007
I need some help for designing the IDs / Primary keys for some master tables in my database. Following are master tables. Client_Master, Buyer_Master & Seller_Master; I want to set Client_Id, Buyer_Id & Seller_Id as their respective primary keys and they should have following properties
Client_Id :- a) should be auto-incrementing value, b) unique & c)should be of the format – CLXXXXXX, where “CL” {Constant start characters} & “X” {any number 0-9}
Similarly::
Buyer_Id :- BYXXXXXX
Seller_Id :- SLXXXXXX
We are implementing the database in MS-SQL 2005 & MySQL
Can anyone help me find a solution to this, especially in MS-SQL.
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Apr 1, 2013
Along with the data that I am pulling back from query, I also need to provide an ImportID column with the following requirements:
YYMMDDGP0001, YYMMDDGP0002, YYMMDDGP0003, and so on. The 0001, 0002, and 0003 part could get big into the hundreds of thousands.
I have the YYMMDDGP part down with the following expression:
SELECT CONVERT(VARCHAR(6), GETDATE(), 12) + 'GP' AS [ImportID]
Now I need to get the Auto Incrementing number part of this. I have been researching this trying SELECT INTO a temp table using the Identity Function and declaring different variables all with no luck.
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Mar 11, 2008
My SQL table has the
following columns:
ID – Auto IncrementingNumber_of_Records – IntAccount_Number – Varchar
(Format 1234)Account_Number_Instance – Varchar
(Format e.g. 1234-01)Other_Field1Other_Field2…etc.
When the Account_Number was
initially inserted into the table, a Stored procedure (not written be me) was used to concatenate the Account_Number
and Number_of_Records. As a result
the Account_Number_Instance became,
e.g. 1234-01, etc.
From the ASPX form we
retrieve each of the fields above, and based on the Number_of_Records an
appropriate number of records were inserted for the Account_Number.
For Example:
Account_Number = 12345Number_of_Records = 4
The result inserted into the
table were as follows:
ID # of Records Acct_Number
New_Num Acct_Number_Instance …
1 4 12345 12345-01
2 4 12345 12345-02
3 4 12345 12345-03
4 4 12345 12345-04
Now, I would like to UPDATE
this table, and based on the original Number_of_ Records (4) I want to ADD, for
Account_Number (1234) add an appropriate Number_of_Instances, beginning with
the next incremental number and adding what the New Number of Records input is…
For Example:
Account_Number = 12345 New_Num(ber_Of Records) = 3
ID # of Records Acct_Number New_Num Acct_Number_Instance …
1 4 12345 12345-01
2 4 12345 12345-02
3 4 12345 12345-03
4 4 12345 12345-04
5 12345 3 12345-05
6 12345 3 12345-06
7 12345 3 12345-07
I
do realize that the next time I have to update this Account_Number I am also
going to have to somehow ADD only one of the #_of_Records and New_Num for the
Acct_Number instances to obtain the next starting number, which in the example
above would be (8)…
Any
and all suggestions on how to accomplish this would be greatly appreciated!
Thanks
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Oct 8, 2007
Hi,
I have the following two tables:
Code:
create table RECORD
(
ID int not null,
Issue_descr varchar(256) not null,
Priority varchar(5) not null,
Status varchar(12) not null,
Date_add varchar(10) not null,
Date_due varchar(10) not null,
Date_complete varchar(10),
PName varchar(32),
primary key(ID),
foreign key(PName) references PROJECT(PName)
);
and
Code:
create table STEPS
(
ID int not null,
Num int not null,
Descr varchar(256),
Date_due varchar(10) not null,
Date_complete varchar(10),
Status varchar(12),
primary key(ID, Num),
foreign key(ID) references RECORD(ID)
);
I have set PK "ID" in table RECORD to auto identity(1,1). I have done the same for PK "num" in table STEPS.
However I am seeking this behavior in STEPS:
ID num
-- ----
19 1
19 2
19 3
20 1
20 2
21 1
but what I'm getting is PK num doesn't "reseed" or reset to 1 as "ID" changes. PK num just auto-increments regardless of ID. Is there a workaround?
Thanks.
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Jul 23, 2005
I'm a bit new to SQL Server, but here is the problem I am trying to getaround:1. I have lets say an Employee table where the emp_id is an identitycolumn that is auto assigned by the db.2. I wish to insert values into the tables, but sometimes I may wish touse the value of the emp_id that i supply while inserting (andsometimes not).Is there any way in MS SQL to do this? For e.g. is it setup like aconstraint that I can temporarily drop. I do not want to alter thetable, so that option is ruled out.Any other ways to do this (I know bcp is one of them that allows me todo this, but looking for ways in the db itself using SQL if possible)Thanks,Bharat
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Jul 20, 2005
I am migrating a web application I wrote from ASP to ASP.Net, and fromAccess to MS SQL server.In the Access version, I did not use the auto number for creatinginvoices and other documents, because I heard somewhere (perhapsincorrectly) that if the db was ever compacted or otherwise changed,it could change the values of the auto-numbers. Not a good thing.So I wrote a routine that, just before creating a new record, wouldlook for the highest value in the table and create the new record withthe next number.So my question is, am I safe in assuming that in MS SQL that I can seta starting number for the next, let's say, invoice and that newnumbers will be issued in sequence, and that these numbers will neverchange? What happens if an invoice is deleted? is the number goneforever? Just wondering how others deal with these issues...thanks.Larry- - - - - - - - - - - - - - - - - -"Forget it, Jake. It's Chinatown."
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Jan 24, 2005
Hi ,,
How to write the Sql Query to return the next generated Identity from the Sql server database.
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Oct 27, 2006
trying to change a column that is just a INT NOT NULL column, to have an auto-increment.
Code:
ALTER TABLE [ImpExpTables].[dbo].[ImpExp_eBayLocalNeedsDeleted]
ALTER COLUMN ID int IDENTITY(1,1) NOT NULL
just gives error at IDENTITY
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Nov 14, 2007
Hi
I'm using a insert into fuction kind of like below
INSERT INTO table1(
col1
col2
col3
col4
)
SELECT
col2
col3
col4
FROM ...............
I'd like to auto-increment col1 so it counts how many rows are being added
any help is very appreciated
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Aug 10, 2006
I have a database table. I need to set a particular data field to allow for Auto Incrementing. Basically I need to set up the initial integer value to start at. Then to specify the amount to increment by.
What I have done so far is to right click on the field name in SQL Server 2005. Then, on the pop-up menu I select the menu option for properties.
When the properties are displayed I see some fields listed in dark grey but I am not able to edit these fields. In other words, if I try to type text in this field, nothing happens. The fields I am talking about are:
Identity Increment
Identity Seed
Is Identity
Does anyone know what the problem is? What do I have to do to edit these fields.
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Aug 17, 2006
Here is a simplified version of my problem:
I am inserting data into a table using a stored procedure. The table has an identity column that increments with each insert. When I use erroneous data in the other fields the insert fails….no surprises there! But when the next insert occurs with valid data I find that my identity field has increased even with those inserts that failed, so my sequence has jumped a few numbers. How do I get the identity inserts to roll back if the rest of the data in a row doesn’t insert successfully?
Marcha x
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Nov 9, 2006
I am porting a database from Informix to SQL Server 2000. Several fields in the informix database are specified as SERIAL, which means that they auto-increment auto-magically if you insert a 0 into them. Well...I was looking for an equivalent in SQL Server 2000, and thought I had found it in the IDENTITY column concept.
With further investigation into IDENTITY columns, however, I discovered that only one column per table can be given the IDENTITY property. Why is this? Is there a way around that? If not, is there another way to achieve this feature in SQL Server 2000? If not, any suggestions on how I can do it?
Thanks!
Lisa
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Sep 22, 2004
Hi everyone,
I am having a table with which i generate a report. Now how to using a SQL query i can generate a auto incrementing no.
Say i am executing this query
SELECT NAME,AGE,ADDRESS FROM MEMBER which gives
NAME AGE ADDRESS
HOLYMAC 13 MALACCA
HOLYCOW 25 USA
HOLYGOD 55 LONDON
Now how can i make it come out like this
SNO NAME AGE ADDRESS
1HOLYMAC 13 MALACCA
2HOLYCOW 25 USA
3HOLYGOD 55 LONDON
See the first column is a auto incrementing number 1,2,3.
How can I write a SQL QUERY that outputs a auto incrementing number.
Thank you
Have nice day
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Jul 13, 2001
Hi
Everyone
I have a problem my table structure is like this
book_id varchar2(30)
book_name varchar2(30)
Now i want to enter the data into the fields like this
B001 Java Unleashed
B002 ASp Unleashed
and so on
So my Problemis how i will auto increment the book_id field though that is an alphanumeric field.
PLease help me that how i will insert and select from this table
Waiting for your help
Manish
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Aug 10, 2006
Hi All,
I need to set up a kind of identity insert that gives an output in the format: 00001, 00002, 00003 etc. Is there a formatting option for this sort of output using normal identity insert features or do I need to write a function to insert these values (perhaps as text) each time a new record is created?
Sorry if this is really simple but it's only my 4th day in this job!
Marcha
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Jul 13, 2012
We have upgraded our SQL 2008 server to 2012 last month. i've noted since then that many tables that have auto increment primary key bigint field increases by 1 like it should, then for some reason it jumps up by 1000 or even 10000? i have seed adn auto increment set to 1 but doesnt effect it. Is there anything that could be causing the next value to jump that much?
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Aug 31, 2007
Hi,
If i were to replicate a database with another where in both the databases have an auto incrementing field. What could be the problems that's goin to arise out of it. How to deal with such a scenario...?????
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Nov 11, 2005
hi there,
i am new to sql server database.i am doing small projects right
now using asp.net and sql to create webpages (very basic webpages)
My problem is:
Problem :
i have two tables .....table 1 and table 2.
Table 1 has following fields: studentid,student name,student address.
Table 2 has following fields:studentid and course .
table1 student id is the primary key refrencing table 2 student id.
Now i delete a record in table 1 which will in turn also get deleted in
table 2 . so for eg if i have three records 1 ,2 and 3 ....then i
delete 2 in table 1 ...i will have 1 and 3 in both table 1 and table
2....now i want 3 to become 2 in both table 1 and table 2...so that i
dont have empty space between two student id's 1 and 3. so this is my
problem....if any one can help me out with suggestions please
do.
thank you all........
ahmed_ind
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Oct 1, 2014
I need to auto increment an alphanumeric field in a table.
The process is as follows:
1. First position is static letter C for contact or static letter A for account - field contact_id
2. The following 6 positions are numeric - example of the string would be C004658
3. When new contact is entered, it should look up the highest numeric value (in this case 004658) and increment it by one - resulting in C004659
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Jan 23, 2004
I have an MS SQL Server table with a Job Number field I need this field to start at a certain number then auto increment from there. Is there a way to do this programatically or within MSDE?
Thanks, Justin.
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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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Feb 28, 2008
Hi,
Im not sure if this can/should be done through sql...but i have a sql statement and i need the first column returned to start at 1 - and then increment for each row.
I am then using the returned values in another app.
I tried using count(columnname) but this just stays at 1 for each row.
Thanks for an feedback...
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Apr 2, 2008
I have a temp tbl and in col1 row1 i would like to have 1, col1 row2 value 2, col1 row3 value 3 and so on. how can i do this?
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Mar 19, 2013
I'm using SQL Server 2000 sp2...I have created a view that gives me customer info from which I need to create a view and or table that gives me a 24 monthly columns of the sum of each account_number monthly revenues (going back 24 months from this month)..The columns I'm pulling from are these:
Customer_Name
Account_number
First_insert_date
Order_net_price
Here's what I have so far:
----------------------------
SELECT TOP 100 PERCENT Account_number, Customer_Name, SUM(Order_net_price) AS 'CM - 24'
FROM dbo.Customer_Feed
WHERE (First_insert_date >= DATEADD(mm, DATEDIFF(mm, 0, GETDATE()) - 24, 0)) AND (First_insert_date < DATEADD(mm, DATEDIFF(mm, 0, GETDATE()) - 23,
0))
GROUP BY Account_number, Customer_Name
ORDER BY Account_number
I've basically hacked out a way to get the monthly totals for each account. What I would like to do is so be able to repeat the query but increment the date range 1 month until reaching the present or last FULL month and display these sums in individual columns named CM - n (where CM means current month and 'n' is the # of months back from current.how to make this query run over again the 23 other times I need it to and display those months sum totals in individual columns.
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Jul 23, 2005
Sorry to bother you guys with what I though would be an easy task. Ihave a table in my database were I would like one of the rows toincrement a number for each row. I want the first row to start at 1000and keep on incrementing by 1 'till the end of the rows (about 2.7million rows). I though this would be a piece of cake, but I just can'tseem to find anything like it on the internet...weird.Anyways, I'm just a rookie in sql, any help would be appreciatedThanksJMT
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Jan 9, 2007
Hello,
I am working on an accounting system using VB.NET and sql server 2005 as a database. the application should be used by multiple users.
i have a the following structure:
Voucher: ID (primary), Date,TypeID, ReferenceCode, .....
Type: ID, Code, Name. (the user can add new type anytime!)
(Ex: PV- payment voucher, JV - Journal Voucher ,....)
When adding a voucher the user will choose a type, according to this type (for each year) a counter will be increminted.
for example: PV1, PV2....PV233,... the other type will have its separate counter JV1, JV2 ,...JV4569,..
I am using the sqlTransaction cause i am doing other operations that should be transactional with the insertion of the Voucher.
The question is :
What is the best solution to generate a counter for each type?(With code sample)
Thanks.
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Jul 15, 2015
I have four columns in my table, the first one is the identity column
col1 Col1 col2 col3
1 12 1 This is Test1
2 12 2 This is Test1
3 12 3 This is Test3
4 12 4 This is Test4
5 12 5 @@@@@
When, I see, @@@ sign in my col4, I need to restart the col3 from 1 again so it will look like this
col1 Col2 col3 col4
1 12 1 This is Test1
2 12 2 This is Test1
3 12 3 This is Test3
4 12 4 This is Test4
5 12 5 @@@@@
6 12 1 This is another test1
7 12 2 This is another Test2
Is it possible to do that?
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Nov 16, 2015
I have a table ComponentPeriod. In it we have the combination of a component (e.g. A,B,C ) and a period (2014 Q1, 2014 Q2, 2014 January etc)I want the periods to be in descending order (2015 Q4, 2015 Dec, 2015 Nov, 2015 Oct, 2015 Q3 ... etc) and so I need to create a sequential number series to allow this to happen (as we can only order in the client tools by a single column - and so I guess the technique I'm looking for is used a lot to produce these types of "order by" columns)
I have done this in the past using
Period_Sequence =
calculate
(countrows(Period)
,filter
(Period
, Period[Start_Date] <= earlier(Period[Start_Date])
&& Period[Duration_String] = earlier(Period[Duration_String])
)
)
Which was fine when I was referring to a table where Periods where distinct directly but now I have denormalised this for ComponentPeriod so I need something a little more sophisticated Whats the best way to get a sequence with perhaps some partitions in across a subset of distinct columns (I guess from SUMMARIZE or similar)
E.g. I want
Period_Name, Type, Sequence
2015 Q4, Quarter, 1
2015 Dec, Month, 2
2015 Nov, Month, 3
2015 Oct, Month, 4
2015 Q3, Quarter, 5
2015 Sep, Month, 6
etc
even though there may be multiple records in ComponentPeriod that have the period 2015 Q4, but I want them all to have the value Sequence value of 1? I've got as far as:
Period_Sequence Desc =
calculate
(countrows(summarize(ComponentPeriod, ComponentPeriod[Period_End_Date]))
,filter
( ComponentPeriod
, ComponentPeriod[Period_End_Date] >= earlier(ComponentPeriod[Period_End_Date])
)
)
But this doesn't distinguish between the different types. I need an equivalent of the t-sql -
row_number() over (order by Period_End_Date desc, case when 'P3M' then 1 when 'P1M' then 2 end asc
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Aug 10, 2001
I am attempting to import data from a Lotus Notes database using DTS. The SQL table I am importing to has an identifying auto-number. I can't insert directly into it because the SQL server should, however I get an error if I ignore it in the DTS package. Is there any way to get around this?
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Jun 14, 2010
I'm having a problem with merge replication. Â My publisher and subscriber are SQL 2008 SP1, and my distributor is SQL 2008 R2. Â Currently, there is no access to the subscriber data aside from the replication agents, so there are no data changes going on there, data is only being modified on the Publisher. Â My plan was to get everything setup and do some internal testing before releasing the subscriber for use.
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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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