Sql Server Sequence Column?
Oct 7, 2006
Hi,
I'm new to sql server but have used oracle sequence numbers to create unique keys in my tables. I've been looking for examples on how to create a sequence type table in sql server and have also found that there is a column called identifier but am unsure how to use this... I created a table and used this column attempting to insert (thinking it would autoincrement) but it fails...
Any insight into how I can accomplish a sequence type activity for unquie numeric ids would be helpful,
Thank you for your help,
Jay
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Mar 20, 2014
Create Table Sample (ID int not null primary key, RefID int , SeqNo int , Name varchar(10) )
insert into Sample
select 1, 1000, 1, 'Mike'
union
select 2, 1000, 2, 'Mikey'
union
select 3, 1000, 3, 'Michel'
union
select 4, 1001, 1, 'Carmel'
union
[code]....
select * from SampleI have here sample data given. What I want to do is, I want to check the RefID which is not having proper order of sequence number. If you see the RefID 1000, 1001 they are having properly sequence order in SeqNo field. But it is not in RefID 1002. RefID 1002 does not have proper order. It is because user has deleted a row which was having seqno 2. So i want to get what are all the RefID's are not having properly sequenced. So that I would be able to know these are all the RefID's are affected by delete statement that was done by user.
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Mar 20, 2007
helen writes "I have a sql table:
NAME AGE
Anna 10
Susan 5
Dina 12
Please help me to come up with a QUERY STATEMENT with this result:
SEQNO NAME AGE
1 Anna 10
2 Susan 5
3 Dina 12 "
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Jul 20, 2005
I apologize if this is redundant.How would one fill an empty column with a sequence of numbers? Thecolumn exists in a table with aproximately 1000000 rows of data. Ibelieve in oracle the following would work:update foo set bar = rownum;....but 'rownum' does not seem to exist in mssql. The numbers do not needto be in order, but I would like to keep them somewhat small.Any help would be appreciated.
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Feb 14, 2005
I am looking for ways to add new column to a table with records inside. If I add the column using this statement:ALTER TABLE Table1 ADD NewColumn1 decimal(18, 2) NULLThe column would appear at the end.
Is there a way to set where the column should be placed? (Excluding dropping all columns and add the columns in sequence again). I know this might not be very important, I am interested in knowing how Enterprise Manager done this, since you can move a column up and down to change their sequence eventhough there're records inside.
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Jul 5, 2014
We have an application which has had a big design floor and is now causing an issue which needs to be rectified. It inserted data in batches of 2000 rows which should have always been in sequence. A column was used which recorded an ever increasing numerical value for each row that was inserted. So batch 1 would have a start value of 1 and an end value of 2001. Batch 2 would have a start value of 2002 and an end value of 4002 etc.
The problem is the application which inserted these records in order, missed some records. So in actual fact we have:
Batch 1 = seq 1 - 2001 (total 2000)
Batch 2 = seq 2002 - 3998 (total 1996, 4 missing)
batch 3 = seq 3999 - 5999 (total 2000)
Now the missing data has been found, it will be inserted at the end of the table, as we cannot insert it where its should be as the sequence value has been used by the next batch already. Lets say the table is 10,000 rows so far, so the seq for batch 2, for example, will be 2002-3998, then after the missing data is inserted, 10,001 - 10,005. The application uses these sequences to show the range of data so where it should be 2000 rows being returned, it would now show 8003 rows - all the other batches between the first and last sequences for the batch!
I need to change the sequence values across the whole table so they are in order. I can select the data in the correct sort order as there is another unique key on the table, but unsure how best to use this to change the sequence column to be in order for all rows. Adding an identity column would work and then remove and rename the seq column, but I obviously cannot add this based on another columns sort order. The identity column would use the clustered key which is in the incorrect order!!
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Sep 25, 2006
hello friends
i want to update one column from my table regularly on sequence number i.e. 0,1,2,3,4,5
i created procedure but it is not working as per my output
declare @IndexIDGen int
declare @ID int
set @ID = 0
update temp_test set indexid = NULL
declare IndexIDGen cursor for select indexid from temp_test
open IndexIDGen
FETCH Next from IndexIDGen into @IndexIDGen
while @@fetch_status = 0
begin
update temp_test set indexid = @ID where indexid is null
set @ID = @ID + 1
print @id
fetch next from IndexIDGen into @IndexIDGen
end
close IndexIDGen
deallocate IndexIDGen
where i am going in wrong direction ??????
T.I.A
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Nov 6, 2006
Sandip writes "I am doing a Project for detection of advertisement in a Web page.
For that I have used one column called ImageText
For giving Training to my database I stored (say) 100000 records in ImageText
Now I want to First n Sequence of Text Which Comes Most Times
For Exa:
ImageText
---------
ABc
ABcd
ABABABABAB
ABcdxyAB
ABcdABcdABcdcdAB
Here,
String No Of Times String Occurs
------ ---------------
AB 13
cd 6
ABc 6
ABcd 3
cdA 3
.....
....
ABc 1
ABcd 1
ABABABABAB 1
ABcdxyAB 1
ABcdABcdABcdcdAB 1
That is i want to find within a string also
For First 3 Most Popular Sequences
Output
------
AB
cd
ABc
Please Reply
If you do not understand the question
then
send me mail"
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Mar 9, 2008
I have a Column called SaleID in some tables in a Database.The SaleID column has the int datatype. I need a stored procedure that returns the next value in sequence for the SaleID column.
For Example,
If the last value inserted into the SaleID column was 1022 the stored procedure should return 1023
If the last value inserted into the SaleID column was 1023 the stored procedure should return 1024.
If the last value inserted into the SaleID column was 1024 the stored procedure should return 1025.
Also an exclusive lock should be maintained while the the stored procedure is running.
I am using SQL Server 2005.
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Oct 7, 2015
If Exists ( Select c.name from sys.columns c where object_id = object_id('HH835HP') and C.name = 'ID_1' )
Begin
UPDATE HH835HP
SET ID_1 =
( select ROW_NUMBER() OVER(ORDER BY CHKDTS ASC) AS ID_1 FROM HH835HP ) ;
End;
Obviously... The stuff inside the IF is wrong syntax...I mean
UPDATE HH835HP
SET ID_1 =
( select ROW_NUMBER() OVER(ORDER BY CHKDTS ASC) AS ID_1 FROM HH835HP ) ;
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Nov 3, 2015
I am working on 1 POC project.I have 2 customer having source file in txt format, but the column sequence of both customer are diffrent.Number of columns in all files are like below.
CustA
ID NAME AGE
1 VIPIN 29
CustB
ID AGE NAME
2 29 jayesh
As per source file you can see that CustA have column sequence ID,NAME,AGE and CustB Have ID,AGE,NAME sequence .I have target table #Temp with ID,NAME,AGE sequence.Like that I have many files from both customer, I have to load in ID,NAME,AGE sequence from all source file to target table.How can we change the sequence of source column before loading to target table.
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Feb 22, 2005
Hi, can anyone teach me how to automatic create a invoice number and insert or update it to a column?
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Oct 8, 2015
The following works just fine. The table tmpMHPCLMDET does have a column ADMTDT ( varchar(8) ).
While I am adding the sequence of numbers I like it to be sorted based on ADMTDT column.
What that means is the row with the earliest ( smallest ) ADMTDT will get 1 and the next 2 and so on.
Declare @ID int
If Exists ( Select c.name from sys.columns c where object_id = object_id('tmpMHPCLMDET') and C.name = 'ServiceLineID' )
Begin
--Adding a sequence of numbers to the ServiceLineID column.
SET @id = 0
UPDATE tmpMHPCLMDET
SET @id = ServiceLineID = @id + 1;
End;
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Feb 25, 2012
When I run query in excel it gives result with different column sequence. The same query gives result with different column sequence when used in query analyzer or VBA Macro. E.g., Select * from ABC.
result in Excel 2003 SQL OLE DB query
col-A col-B col-C
values...
Result with Query Analyzer and VBA Macro
col-c col-B col-A
values...
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Mar 25, 2004
Is is possible to Generate sequence numbers in a Query result in an SQL select Statement
like
Select sno,employee_name from empmaster
sno being a number with auto increments(this Field will not be in a Table).
I do not want to use Identity .....
This is Just to Provide a Serial Number to the Query Output...
thus the Out put should be something like
sno employeename
--- ------------------
1 abc
2 jhjk
3 kljl
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Mar 27, 2008
Hi,
Does any one have information about how 'large' the SQL Server Sequence Number generator can go,
like 1 to 1 billion, or to 12 zeros, etc?
Thanks.
--John
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Jun 2, 2008
In oracle, I can setup a sequence generating unique ids and query the next value (which is used as a unique identifer). I know sql server has the identity field but I need to query the next val so I can insert rows into multiple tables.
When a user submits a form, I want to take the dept info from the form (in c# asp.net 2.0) and grab the first two characters. Then query the next val from a table that holds an int.. During insert into two tables it would be something like "IT100" or "SL101". But it needs to be unique.
Is there a way to setup a table in sql server similar to a sequence where I can just query the next val (or some other way?). Remember, I cant do this as identity because I need the key being inserted in other tables during form submit.
It seems very simple but I can't seem to find an answer online that allows me to query the next val in my code then perform the multiple inserts.
Thanks in advance for any assistance you can lend on this,
dev1aspnet
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Aug 13, 2006
In ORACLE 9i, I created the table test that show the tree structure of an organizaion with the following SQL statement:
CREATE TABLE TEST(
PARFOLDERNO NUMBER(8,0),
FOLDERNO NUMBER(8,0)
)
And select the data using the following SQL Statement:
SELECT PARFOLDERNO,FOLDERNO FROM TEST
The result is:
PARFOLDERNO FOLDERNO
0 2461
2461 2463
2461 2462
2462 2465
2462 2466
2463 2469
2463 2470
To show the subnodes of the root node 2461, the following SQL Statement is used:
SELECT PARFOLDERNO,FOLDERNO FROM TEST START WITH FOLDERNO=2461 CONNECT BY PRIOR FOLDERNO=PARFOLDERNO
the results:
PARFOLDERNO FOLDERNO
0 2461
2461 2463
2463 2469
2463 2470
2461 2462
2462 2465
2462 2466
I have created the table test with the same structure and the same data in SQL Server 2005. To show the subnodes of the root node 2461, the following SQL Statement is used:
WITH CTE_TEST(PARFOLDERNO,FOLDERNO)
AS
(
SELECT PARFOLDERNO,FOLDERNO FROM TEST WHERE FOLDERNO=2461
UNION ALL
SELECT TEST.PARFOLDERNO,TEST.FOLDERNO FROM TEST, CTE_TEST
WHERE TEST.PARFOLDERNO=CTE_TEST.FOLDERNO
)
SELECT PARFOLDERNO,FOLDERNO FROM CTE_TEST
PARFOLDERNO FOLDERNO
02461
24612463
24612462
24622465
24622466
24632469
24632470
The results are shown again in Oracle 9i and SQL Server 2005 as follwos:
Oracle 9i SQL Server 2005
PARFOLDERNO FOLDERNO PARFOLDERNO FOLDERNO
0 2461 0 2461
2461 2463 2461 2463
2463 2469 2461 2462
2463 2470 2462 2465
2461 2462 2462 2466
2462 2465 2463 2469
2462 2466 2463 2470
How can I get the result with the same sequence in SQL Server 2005?
Thanks!
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Dec 12, 2012
I've started using a SEQUENCE in a table instead of an identity.
I seem to be experiencing problems of the sequence getting reset to a lower value periodically. Inserting will work on the table, producing the next bigint in the sequence as the primary key, for days and then all of the sudden duplicate primary key errors show up. When I check, the last primary key value in the table is higher than the current value of the sequence.
For example: right now I have primary key values 6000 through 7032 contiguously in the table, all of which were generated with the sequence. Suddenly I'm getting duplicate primary key errors. A quick check of the sequence shows it's at 7002, but the last inserted row has a primary key of 7032!
I'm populating this table in one place (in the application layer), leaving the primary key null, which allows the default constraint to get the next sequence.
When the problem shows up, I've reset the sequence to the higher number in the past and all is well for many days, then the problem occurs again.
The definition for the sequence is:
CREATE SEQUENCE [dbo].[IntegrationQueueSEQ]
AS [bigint]
START WITH 1
INCREMENT BY 1
MINVALUE 0
MAXVALUE 9223372036854775807
CYCLE
CACHE 50
The default constraint for the primary key on the table is defined as:
ALTER TABLE [dbo].[IntegrationQueue] ADD CONSTRAINT [DF_IntegrationQueue_IntegrationQueueID] DEFAULT (NEXT VALUE FOR [dbo].[IntegrationQueueSEQ]) FOR [IntegrationQueueID]
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Feb 21, 2014
I need to be able to identify breaks in a sequence so I can evaluate the data more correctly. In the sample I have given I need to be able to identify the break in sequence at 69397576, ideally I would set that as a D. My query also needs to recognize that the 3 sequences following 69397576 are sequential and would belong to that set. so the out come would look like this.
id file_name page_follow
693975631555557564_22222221114014810D
693975641555557564_22222221114014810F
693975651555557564_22222221114014810F
693975661555557564_22222221114014810F
693975671555557564_22222221114014810F
693975681555557564_22222221114014810F
693975691555557564_22222221114014810F
693975761555557564_22222221114014810D
693975771555557564_22222221114014810F
693975781555557564_22222221114014810F
693975791555557564_22222221114014810F
here is some test data.
create table test1 (id INT
, [file_name] VARCHAR(100)
, page_follow CHAR(1));
go
[code]....
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Jul 6, 2015
I have the following table struction, lets call it table A.
bookidstartdate endate
2001 2000-01-01 2000-01-05
3001 2001-01-01 2001-01-02
4001 2002-01-01 2002-01-04
and i want the end result to be look like this in table B.
bookidstartdate endate bookidrowdate bookidlogseqrowsequence
2001 2000-01-012000-01-05 2000_01_01 2001_0 0
2001 2000-01-012000-01-05 2000_02_01 2001_1 1
2001 2000-01-012000-01-05 2000_03_01 2001_2 2
2001 2000-01-012000-01-05 2000_04_01 2001_3 4
3001 2002-02-01 2003-02-02 2000_01_01 3001_0 0
3001 2002-02-01 2003-02-02 2000_02_01 3001_1 1
4001 2002-01-01 2002-01-04 2002-01-01 4001_0 0
4001 2002-01-01 2002-01-04 2002-02-01 4001_1 1
4001 2002-01-01 2002-01-04 2002-02-01 4001_2 2
The script below works but i have a break when datediff (days,startdate, endate) reaches 0. For every bookidm i want to iterate till the datediff is zero then move on to next bookid and do the same thing.
declare @orders table
(
bookid int,
startdate date,
endate date,
rowsequence int
[Code] .....
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Jul 29, 2015
I'm looking to see if there is a way to populate starting number for the sequence from a max value of a table.
CREATE SEQUENCE test_seq
AS [int]
START WITH (select max(col1)+1000 from table1)
INCREMENT BY 1
MINVALUE 1
MAXVALUE 2147483647
CACHE
GO
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Nov 30, 2006
hi,1. is there a statement in ms sql, what creates a sequence? cant findanything in web :-(-oracle: CREATE SEQUENCE XYZ INCREMENT BY 1 START WITH 1 NOCYCLECACHE 20;-ms sql: ???2. hwo do i create a link to another ms-sql databasethx a lot need help, urgend :-)
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Jun 14, 2015
I am designing a database. I want to define a automatic sequence on a table primary key field. what is the best solution for it?I know I can enable identity property for a field, but it has some problems ( for example its seed jumps on restart and unsuccessful events).I also can use some calculated sequences. for example I can calculate max of the filed values and after incrementing use it as key for new inserted record.
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Aug 4, 2014
We are running SQL Server 2012 on Windows Server 2008. Just wondering what type of actions would break the backup-chain or backup sequence? For instance, if you have tlog backups being taken every 10 minutes and you stop the SQL Server Service for say 30 minutes. Would this action break the backup chain? Or would everything return to normal once the SQL Server Service is restarted?
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Apr 13, 2015
We are trying to upgrade a SQL server 2000 to a SQL 2008 R2 (SP1) server. After migrating, the developer test code, and got an error: ERROR [HY010] [Microsoft][ODBC SQL Server Driver]Function sequence error...But this is a release for 2008, ours is already 2008 R2 SP1, so that hot fix should already be included since it is always cumulative.
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Apr 27, 2015
Write the query that produces the below results. I'm not ale to join the two sets in a way so that it displays NULLs if no purchase was made on a given day for a particular product. I need NULLs or s so that it shows up correctly on my SSRS report.
-- declare @from DATE='2015-1-5',@to DATE='2015-1-10'
-- test data
;with testdata as(
SELECT 1 AS Id,'1/6/2014' AS Date, 21 As Amount UNION ALL
SELECT 1 ,'1/8/2014', 25 UNION ALL
SELECT 1 ,'1/9/2014', 30 UNION ALL
SELECT 1 ,'1/10/2014', 60 UNION ALL
SELECT 1 ,'1/5/2015', 3800 UNION ALL
SELECT 1 ,'1/6/2015', 7120 UNION ALL
[code]....
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Jun 21, 2015
So, I have some questions about best practice in SQL Server.
1.) I have PK like this (company TINYINT, store TINYINT, action TINYINT, invoice INT, sn SMALLINT). I know JOINS will work faster with surrogate key but I have only couple of JOINS on that table. I use members of PK in WHERE clause mainly, alone and combined for reporting purpose. Is it always better to have surrogate key because they don't have any meaning and context of data laying in current PK.
2.) In my PK from above I have two candidates for using Sequence object. Invoice start with 1 for every (company,store,action) combination. Sn start with 1 for every (company,store,action,invoice) combination. I would like to know can I implement Sequence object here knowing that Sequence don't support PARTITION BY in OVER clause. From what I red it cannot be done via Sequence but I have to ask.Here is data sample for this PK
company store action invoice sn
----------- ----------- ----------- ----------- -----------
1 1 1 2017 1
1 1 1 2018 1
1 1 1 2019 1
1 1 1 2019 2
1 1 1 2019 3
1 1 2 1 1
1 1 2 2 1
1 1 2 2 2
1 1 2 2 3
1 1 2 3 1
1 1 2 3 2
1 1 2 3 3
1 1 2 3 4
1 1 2 3 5
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Jun 30, 2015
In my asp.net project there are about 100 drop down list.I created a table to store data for drop down list in which including [DropdownID],[Order Sequence] and [Description] three columns. The sample like below. Data was input manually by a user. How to code to find out duplicate [OrderSequence]?
DropdownID--OrderSequence--Description
1-------------0--------------AAA
1-------------1--------------BBB
2-------------0--------------YYY
2-------------1--------------XXX
2-------------2--------------QQQ 'DUPLICATE OrderSequence
2-------------2--------------WWW 'DUPLICATE OrderSequence
2-------------3--------------RRR
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Sep 3, 2014
I have a Contact table where I enter a "Parent" (Mother or Father) with IsSubscriber = 1. I also enter all of their children in this same table, with IsDependent = 1.
I then have a Relationship table that relates each child to the appropriate parent record in the Contact table.
I need to assign a sequence number to each child ONLY if they were a multiple birth (twins, triplets, etc.; all have the same DOB). I've been successful at writing a query using ROW_NUMBER(), but it includes the single births (no other child of the same parent has the same DOB).
Stripped down version of Tables and Data and my failed attempt to write a query to do what I want:
IF OBJECT_ID('TempDB..#Contact','U') IS NOT NULL
DROP TABLE #Contact
CREATE TABLE #Contact (
ContactId INT IDENTITY(1,1) PRIMARY KEY CLUSTERED
, IsSubscriber BIT
[Code] ....
This is as close as I can seem to get.
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Oct 16, 2014
I have a requirement where in I have to concatenate the fields based on their sequence given in another table along with respect to their lengths. eg..
Input 1:
Table A: (below are the fields and their respective values, not all fields will have values)
-----------
KSCHL - ZIC0 (KEY)
KOTABNR - 521 (KEY)
MATNR
KUNNR-->1234567890
LIFNR
VKORG-->a234
PRCTR
KUNRE-->4355325363
LIFRE-->88390234
PRODH
Table BIt contains the same fields as in table A and will have sequence number in which the concatenation should happen. The length field(LEN) will have corresponding field lengths(pipe delimited) should be considered in concatenation)
KSCHL - ZIC0 (KEY)
KOTABNR - 521 (KEY)
MATNR
KUNNR--> 1
LIFNR
VKORG-->3
PRCTR
KUNRE-->2
LIFRE -->4
PRODH
LEN10|10|4|10
Expected Result:
---------------------
KSCHL - ZIC0 (KEY)
KOTABNR - 521 (KEY)
MATNR
KUNNR1234567890
LIFNR
VKORGa234
PRCTR
KUNRE4355325363
LIFRE0088390234
PRODH
Concat_String12345678904355325363a2340088390234
Note: If the field length given in Table B doesn't match with actual size of the fields then, the field should be filled with 2 left spaces while concatenation.. Eg. In above example say LIFNR value = 88390234(len =icon_cool.gif then after concat the value should be like below:
12345678904355325363a234 88390234
Note:The fields are not constant..I have around 40 fields like that in which any combination of fields can be possible...eg..
KSCHL - ZIC0 (KEY)
KOTABNR - 521 (KEY)
MATNR -->2
KUNNR--> 4
LIFNR
VKORG-->1
PRCTR
KUNRE
LIFRE --> 3
PRODH
I am not sure which field has the value 1, 2 etc.. and how many fields are forming the combination..It can be sometimes 3/40 fields or it can be 10/40 fields...I have to dynamically get those values and concat...
I can have any number of fields for concatenation..above example is just for 4...it should be dynamic enough to handle any number of fields..
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Mar 5, 2015
I want to make a query with the result like this, where Seqno is the result query which has repeating sequence number for same Field1
Field1Field2SeqNo
BVFUSBVFUS011
BVFUSBVFUS021
BVFUSBVFUS031
BVFRPBVFRP012
BVFRPBVFRP022
[Code] ....
I want the result also no ordered by Field1. it just as the natural order of the table..
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Apr 20, 2015
GENERATE 8 CHARACTER ALPHANUMERIC SEQUENCES
Requirements
• ALPHANUMERIC FORMAT – > AA00AA00………..ZZ99ZZ99
Last 8 bytes will alternate between 2 byte alpha/2 byte numeric
• Generate from Alphabets – A through Z Numbers -0 to 9
• Generate Unique Sequence (No Duplicates).
• Must Eliminate letters I and O
Output Expected
• AA00AA00………..ZZ99ZZ99
• Using 24 alphabets & 10 digits ,
24*24*10*10*24*24 = 3 317 760 000 records
Below is my Sql Function -
CREATE function [dbo].[SequenceComplexNEW]
(
@Id BIGINT
)
Returns char(8)
[Code] .....
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