Hello, I have a table where I'm deleting the contents before populating the table with new data. I have an ID column that is autogenerating a sequential number. I would like to reset this number back to 1 when I delete the contents of the table. How can this be accomplished?
View 3 RepliesWe are integrating all our applications/databases into one application/database. During the transition phase, I need to create a number of views based on the new database that mimic the old tables of the old databases, so the old programs can continue to function until they are gradually replaced.
In one of the views, I need to generate a sequential number. The value is unimportant, as long as it is unique in the dataset; strictly spoken, it even doesn't need to be sequential:
eg:
SELECT * FROM myView
should give
Code:
col1col2...id
lalacar..1
bababike..2
....
zsrdpen..896
ghrtink..897
SELECT * FROM myView ORDER BY col2
should give
Code:
col1col2...id
bababike..1
lalacar..2
..
ghrtink..45
..
zsrdpen..396
....
The view is created based on a number of tables.
this is a slight change to a fequently asked question around here. Ihave a table which contains a "sortorder" column where a user canspecify some arbitrary order for records to be displayed in. Usershave sometimes ordered records the way we used to number lines in aBASIC program (10,20,30, etc.). I'd like to do an update query and fixthis so that every record is in sequential order. I found an examplein this newsgroup of how to do this.However, I have a slight problem! Sometimes, the users duplicated thesortorders. So for example, I might have two records were thesortorder is 20. The query I found in this newsgroup does not work inthat case. Here is some code so that you can see what I mean.create table sorttest (label char(5),sortorder int)goinsert sorttest values ('joe',20)insert sorttest values ('dan',10)insert sorttest values ('jim',44)insert sorttest values ('tom',20)insert sorttest values ('jan',50)-- data dumpselect label, sortorder from sorttest order by sortorder-- I'd like to fix all of the sortorder fields so that they aresequentialupdate sorttestset sortorder = (select count(*)from sorttest subquerywhere sorttest.sortorder <= subquery.sortorder)-- note that tom and joe BOTH HAVE SORTORDER = 4select label, sortorder from sorttest order by sortorderdrop table sorttestThanks in advance for any help.
View 19 Replies View RelatedHello everyone,
I have a stored procedure that supplies rows for a front-end DataGrid that allows custom paging. The stored procedure must return the requested "page" of rows as identified by a sproc argument. Currently, I'm loading the the query's result set into a temporary table that has an identity column as primary key. I then run a second query against the temp table that uses the identity column value to strip out the requested "page" of rows and return them to the front-end DataGrid.
I'd like to eliminate the temporary table. To do so I would need to create the equivalent of an identity column in the query's sorted results and reference this value in the WHERE clause in order to return only the requested rows.
Does anyone know of a way to generate a sequential number (starting at 1) within a query (and after the rows have been sorted by the ORDER BY)? I don't think this can be done but I put it out for those who may know better.
Thanks for your help. If you know this is impossible, that would be helpful feedback as well.
BlackCatBone
I need to group records and assign a setid to the group. I have atable with data that looks like thisColA ColB94015 0106594016 0106594015 0108594015 0108633383 0091232601 00912I need to create a resultset using just sql to look like thisColA ColB GRP94015 01065 194016 01065 194015 01085 194015 01086 133383 00912 232601 00912 2The tricky part is resolving the many to many issue. A value in ColAcan belong to multiple values in ColB and a value in ColB can havemultiple values in ColA.
View 6 Replies View RelatedI have two tables
1. Po (Purchase Order)
2. PoDet (PoDetails)
Po Table is having a datatime field called "ShipDate", OrderNo and a field called PoNo (which is having number of PO).
PoDet is child table having PoNo and PoQty
Suppose following records are in both tables
Po:-
OrderNo : 1
PoNo :- Po No 1
ShipDate :- Oct 5, 2007
OrderNo : 1
PoNo :- Po No 2
ShipDate :- Dec 5, 2007
OrderNo : 1
PoNo :- Po No 3
ShipDate :- Oct 5, 2007
PoDet:
PoNo :- Po No 1
PoQty :- 2000
PoNo :- Po No 2
PoQty :- 3000
PoNo :- Po No 3
PoQty :- 4000
I want to generate a Delivery No. which will be generated in this way :-
1. Earlier Shipdates should be assigned a Lower Number
2. If Shipdates are same, like in case of PoNo 1 and PoNo3, the higher Qty will be assigned a lower number
So meeting the above two conditions, a single SQL should return
PoNo :- Po No 3
DelNo : 1 (As Dates are same for PoNo1 and PoNo3 but PoNo3 Qty is higher, so this will come first)
PoNo :- Po No 1
DelNo : 2
PoNo :- Po No 2
DelNo : 3
Can anybody help on this.
The below data come from table table1. Instead of below result Ex1: I need output similar to the ex2.
Ex1:
CaseNumberStart CaseNumberEndExported
15000013150000131
15000014150000141
15000504150005041
15000505150005051
Ex2:
CaseNumberStart CaseNumberEndExported
15000013150000142
15000504150005052
How to get the result similar to Ex2, instead of Ex1. (ie., case-number is in sequential order then no need to break), And it should suit large dataset, I will finetune, if any performance issue.
Ok I have upgraded my works database from a poorly designed Access database to a SQL database. The previous system allowed NULL values and duplicates to be inserted into a field that should NOT ALLOW NULL Values or duplicates. Therefore, this issue has now been moved across to my new system as I cannot set these constraints on the field that has multiple NULL values.
My solution would be to use a sequential operator, so whatever = NULL would be changed to a sequential number that us as administrators would know was a bogus number starting at something like = 999999900 counting up from that. There are only 250 records that would require updating.
To make things more interesting this field is not a integer type, its a Nvarchar type as its a Hardware ID. Both numerical and characters are require.
Hello!
Got a problem I hope some clever people can help me out with..
I have a web form that displays a set of records in a grid. The grid is "paged" according to a PageNum column, with a dropdown box to change pages and buttons allowing the items to be moved up or down a list within a page or moved between pages. So the backend table (simplified) looks something like this
PageNum ItemNum ItemDescription
----------- ----------- -------------------
1 1 aaaaaaa
1 2 bbbbbbb
1 3 cccccccc
2 1 ddddddd
2 2 eeeeeee
2 3 ffffffffffff
3 1 ggggggg
3 2 hhhhhhh
3 3 iiiiiiiiiiiiiiii
The problem is when I want to delete a page - I need the page numbers to automatically resequence themselves, so for example, If I delete "Page 2" (i.e. delete rows where PageNum = 2), all items on "Page 3" become "Page 2" (and any items on "Page 4" become "Page 3" etc).
This has proved straightforward to when deleting an item from a particular page, and can resequence ItemNum thanks to a clever bit of code found on SQLteam.com:
DECLARE @intCounter int
SET @intCounter = 0
UPDATE <Item Table>
@intCounter = ItemNum = @intCounter + 1
WHERE Pagenumber = <Currently Selected Page>
However I haven't been able to adapt this to resequence the Page number, as this involves resequencing blocks of numbers. The closest I can get is:
DECLARE @intCounter int
SET @intCounter = 1
UPDATE <Itemtable>
SET @intCounter = PageNum = CASE
WHEN @intCounter = PageNum - 1 THEN @intCounter + 1
WHEN @intCounter = PageNum - 2 THEN @intCounter + 1
ELSE @intCounter
END
But this doesn't quite work.
Anyone got any other ideas??
Thanks
Greg
I have a table that holds notes for item's. I'm want to do a select statement where one of my columns assigns a sequential value to each row based on the item number. Would like data to look like this where doc_no would be my row_number function:
item_no seq_no note doc_no
ABC 1 blah 1
ABC 2 blahh 1
ABC 3 bla3 1
XYZ 1 more n 2
XYZ 2 another 2
EFG 1 blahhh 3
Hi all... how to reset the primary key to 1?
thanks
Ron
RON
________________________________________________________________________________________________
"I won't last a day without SQL"
I use Microsoft SQL Server and also I have several tables. One table has ID like PK, and name. ID use autoincrement number mode, and now when I want start form one but not from 156 or like that. I don't know how? And also when I delete all data from table an run my apllication and add something in table, it starts form last number, not from one.
Maybe can I do it from SQL menagement studio?
How I can reset table and start from 1?
How can I reset the number of Row_Number() if I exceed the number of rows specified.
Example:
Code:
Col1 RowNum
----------------------
ID1 1
ID1 2
ID1 3
ID1 4
ID1 5
ID1 1
ID1 2
ID1 3
ID1 4
In this example, the Row_Number will reset for every 5 items.
I know how to reset the page numbers with each group, but how do you reset the total page number within each group.
EX. Code for page of total pages
="Page " & Globals.PageNumber & " of " & Globals.TotalPages
EX. Code to reset within a group
Custom Code:
Shared offset as Integer
Shared currentgroup as object
Public Function GetGroupPageNumber(group as Object, pagenumber as Integer) as Object
If not (group = currentgroup)
offset = pagenumber - 1
currentgroup= group
end if
return pagenumber - offset
end function
=Code.GetGroupPageNumber(ReportItems!Category.Value(grouping),Globals!PageNumber)
What I need is code for a combination of the two...to display code for page of total pages that resets within a group.
Any help is greatly appreciated.
Thanks!
Hi,
I need a sequential primary key to store a document number.
Is IDENTITY(1,1) the best way to achieve this on SQL Server 2000?
If I have a great number of users on my application doing an insert on the DB at the same time, could this lead to any problem like it trying to insert the same PK for some of them? Can this happen, and if so what can I do to prevent this?
I've been reading about NEWSEQUENTIALID() but it's only avaiable on SQL Server 2005 and i'm still using 2000.
Another question.. should I avoid using NEWID() and use IDENTITY instead? I've been reading that newid() lowers the system performance because all values are non sequential.
Thanks!
Hi,
I'm having 2 issues on my first "real" SSRS report.
1. How to do a print preview via the preview tab. For print rendering, I have no print preview button on the preview toolbar. Is this normal? MS documention said that there is a Print Preview button. (BOL May 2007 - Designing & Creating reports -> working with report designer -> debugging and Publishing reports (Print Preview)) This report will always be rendered via the printer and it is a "pain" to have to always print it to see changes. The print layout option comes up all black with nothing viewable.
2. How do I reset page numbers back to 1 for report groups? I see no option for this. My report group requires a new page and I want page numbering to start at 1 when the grouping changes.
Note: I'm running VS2005 via Vista (with VS2005 Vista fix installed). SQL2005 SP2 also installed.
Any advice on this will be appreciated. I've spent too much time already where this should be obvious.
I have a query which is ordered descending by bonus column..
I just need to add new column that is include 1,2,3,4... numbers..
Best Regards,
I have a table like this
create table
#invoice (invoice_no varchar(5), invoice_amount int)
INSERT INTO #invoice
SELECT 'A', 100 UNION
SELECT 'A', 200 UNION
SELECT 'A', 300 UNION
SELECT 'B', 400 UNION
SELECT 'B', 500 UNION
SELECT 'B', 600 UNION
SELECT 'B', 700
Now I want a output like this
INVOICE_NO AMOUNT SEQUENCE_NO
A 100 1
A 200 2
A 300 3
B 400 1
B 500 2
B 600 3
B 700 4
The sequence_no should set back to 1 on change of invoice_no
these are items in a an invoice. they just want a sequence_no
I can do this using cursors, but if anyone can help with WHILE LOOP
would be great
THANKS
-----------------------------------------------------------------------------------------------
Ashley Rhodes
Hi all,
How can i generate auto Number in SQL Server 2000,like AutoNumber Datatype in MsAccess....
Thanx in advance
Sajjad
hi
How to find current row number in MS SQL 2000 server DB ?
like in oracle rowid is there to get unique no. of each row.
I want to track the last row in the resultset ..
is any fun for this ??
Hi allI'm struggling to find an answer to this one!We've configured our SQL boxes to run under a different port number,e.g. from 1433 to 4533. This works fine under our Citrix enviornmnetwhere the dsn is configured to use the new port. The problem comes interms of SQL Server management. For example, when you try andconfigure SQL Replication, it is not possible to add the subscriberunless the SQL Servce runs under port 1433, the default port. Thesame goes when you try to add the server as a registered server withinthe Enterprise Manager MMC.Does anyone know how you can configure SQL Server to run under adifferent port number, without naffecting SQL REPLICATION, etc?Many thnaksNikJoin Bytes!
View 2 Replies View RelatedHi.. I tried to setup MSSQL2000 trans replicatiom using push subscription method. My Publisher is also my distributor. But whenever I started the dstribution agent, I got the following error. It has problem connecting to subscriber's DB with the following error. I had tried that the login is 100% fine. But why this error appear ? Any help?
The name ' ' is not permitted in this context. Only constants, expressions, or variables allowed here. Column names are not permitted.
(Source: Subsriber (Data source); Error number: 128)
Hi,
I have some problems with our database which is growing too large, and was hoping someone might have some tips on what I can do!
I have about 100 clients, each logging about 10 000 rows of status logs a day. So after just a few days the db is growing very large.
At present it's manageable, since I don't need to "dig" into the logs more than a few times a day. The system it self is not affected by the size of the log or traffic on the server. But it will increase to about 500 clients in 2004, and 1000-1500 in 2005. So I really need a smarter solution than what I have today to be able to use the log efficiently.
98-99% of these rows are status-messages which are more or less garbage during normal operation. But I still need to keep them in case an error occurs, and we need to go back an hour or two (maybe a day) to see what went wrong. After 24-48 hours these 98-99% are of no use. I do however like to keep the remaining 1-2%, they are messages like startup, errors, etc. Ideally they should be logged in two separate tables by the clients, but unfortunatelly I cannot make the clients change their logging.
This presents problems on multiple levels. Mainly in searching, which often times out, but also with backup and storagespace. At the moment I check the system for errors, and every other day I just truncate the log-file. It works, but it's not exacly elegant......
The server is a 1100 MHz P3 / 512MB / Windows 2000 Server /
SQL Server 2000. Faster hardware would help, but the problem is more of a "bad design" than "slow hardware" problem.
My log is pretty simple, as follows:
LogId - int - primary key - clustered index
ClientId - int - index asc
LogTypeId - int - index asc
LogValue - nvarchar[2500], ikke index
LogTimeStamp- datetime - index asc
I have deducted 3 different solutions:
Method 1:
Simply run "Delete from db_log where logtyipeid <> stuff_I_want_to_keep".
This is the simplest and the one i prefer, but it takes too long time to complete. Any tips to speed this process up?
Method 2:
Create a trigger which runs something like "Delete from db_log where logtypeid <> stuff_I_want_to_keep and date < today_minus_two_days" every hour or so. This will ensure that the db doesn't grow to large. But if I'm away from work a few days we might loose data we'd wanted to keep.
Method 3:
Copy what I want to keep into another table, and empty the log. Sort of like "Insert into db_log_keep stuff_to_keep; drop db_log; create table db_log; " (or truncate, but that takes a long time too)
But then I would be stuck with two log tables, "48-hour_db_log" and "db_log_keep". I could use a view to "union" them so they would appear as a single table, but that's not ideal either.
However, it seems as this method is what will work best for my set-up, unless there are other suggestions??
Method 4:
...eagerly awaiting ideas!!! :-)
(Also, whatever tips and/or links to info on maintaing VLDB's are greatly appreciated. )
Thanks in advance for your help! :-)
Nikolai
Summary: Maximum number of records per second that can be inserted intoSQLServer 2000.I am trying to insert hundreds (preferably even thousands) of recordsper second in to SQLServer table (see below) but I am getting thefollowing error in the Windows Event Viewer Application log file:"Insufficent Memory......"And very few records were inserted and no errors where sent back viathe JDBC.By removing the indexes on the table we have stopped getting the errormessage and have managed to load the table at 300 records per second.However I have couple of questions:1) Are the indexes definitely to blame for this error and is thereanyway of getting around this problem i.e. keeping the indexes in placewhen inserting?2) How should I configure SQLServer to maximise the speed ofinserts?3) What is the limiting factor for inserting into SQLServer?4) Does anyone know of any metrics for inserting records? At wantpoint should we consider load balancing across DBs.I currently populate 1.6 million records into this table. Once againthanks for the help!!CREATE TABLE [result] ([id] numeric(20,0) NOT NULL,[iid] numeric(20,0) NOT NULL,[sid] numeric(20,0) NOT NULL,[pn] varchar(30) NOT NULL,[tid] numeric(20,0) NOT NULL,[stid] numeric(6,0) NOT NULL,[cid] numeric(20,0) NOT NULL,[start] datetime NOT NULL,[ec] numeric(5,0) NOT NULL,)GOCREATE INDEX [ix_resultstart]ON [dbo].[result]([start])GOCREATE INDEX [indx_result_1]ON [dbo].[result]([id], [sid], [start], [ec])GOCREATE INDEX [indx_result_3]ON [dbo].[result]([id], [sid], [stid], [start])GOCREATE INDEX [indx_result_2]ON [dbo].[result]([id], [sid], [start])GO
View 5 Replies View RelatedI have few databases with SAME database structure in
SQL Server 2000 in different locations. Data will be
updated in different places with different sets of
data. Basically, i need to synchronize the data
especially to the headquarters database periodically
(may be everyday at night).
DB : SQL Server 2000
OS : Both are running on Windows XP for testing
purposes.
Situation : Now i have 2 database from 2 different
estates. Now, need to be synched into 1.
Have 2 publisher namely TH1, TH2
1 subscriber : THFinal
I've created 2 individual publications using "Create
Publication" and published database namely TH1 and
TH2.
Publication type : Merge publication
Default table article properties setting are as
follows :
a. When merging from different sources : "Treate
changes to the same column as a conflict (changes to
different columns in the same row will be merged)".
Snapshot
i Choose "DELETE DATA IN THE EXISTING TABLE that
matches the ROW FILTER statement".
Resolver :
I checked "yes" for - Allow Subscribers to resolve
conflicts interactively during on-demand
synchronizations".
Now, when i sync the TH1, all the records from TH1
goes to the subscriber database "THFinal".
When i sync the TH2, all the records which was
synched earlier (from TH1) being DELETED. and all
the records from TH2 goes to the subscriber database
"THFinal".
Basically, i WANT to retain the ALL THE data from in
"THFinal" which came from TH1 database since the
primary key is different. Also, all the database
contains running no (Identity increment = 1) .
Identity : Yes (Not For Replication) (Identit seed=1)
===================================================
PROBLEM : 1ST (TH1) database can be synched. when
I try to replicate the 2nd (TH2) database, the
following ERROR displayed : The process could not
drop one or more tables because the tables are being
used by other publications.
The process could not drop one or more tables because
the tables are being used by other publications.
(Source: Merge Replication Provider (Agent); Error
number: -2147200976)
Thanks in Advance
Reagards
Ihsan
Hello,I am creating a new database and I was advised to use Sequential Guids.I was reading some information and, as far as I understood, I can use NEWSEQUENTIALID. This can be used when I have a uniqueidentifier column as the key of a clustered index to avoid fragmentation during insert. Ok, so I use NEWSEQUENTIALID instead of NEWID.But I will use LINQ most of the time instead of Stored Procedures.So can I specify in my tables scripts to use Sequential Guids when, for example, a record is created? And am I right when using Sequential Guids?Here is a part of my code:-- Blogs ...
create table dbo.Blogs
(
BlogID uniqueidentifier not null
constraint PK_Blog primary key clustered,
Title nvarchar(400) null,
Description nvarchar(2000) null,
CreatedDate datetime null
)
-- Posts ...
create table dbo.Posts
(
PostID uniqueidentifier not null
constraint PK_Post primary key clustered,
BlogID uniqueidentifier not null,
AuthorID uniqueidentifier not null,
Title nchar(1000) null,
Body nvarchar(max) null,
UpdatedDate datetime not null,
IsPublished bit not null,
constraint FK_Posts_Blogs
foreign key(BlogID)
references dbo.Blogs(BlogID)
on delete cascade,
constraint FK_Posts_Users
foreign key(AuthorID)
references dbo.Users(UserID)
on delete cascade Thanks,Miguel
In Foxpro I would often run sequential queries on data. Each query would store the results in a cursor, which would be the datasource for the next query. It was an easy way to write several simple queries to accomplish something complex.
Like this:
select <fields> from table1 where <condition> into cursor work1
select <fields> from work1 where <condition>
How do I accomplish this in TSQL?
I am trying to export the data from a number of MSSQL 2000 tables to UTF8 csv files.
Using the bcp that came with MSSQL 2000 didn't work (UTF8 related), so I am now accessing the 2000 database from within MSSQL 2008 R2 Management Studio and use its Import and Export wizard that does make UTF8 exports possible.
But it fails. This is the error I got for one table.
Code:
- Validating (Error)
Messages
Error 0xc00470d4: Data Flow Task 1: The code page on input column "cmsGUID" (74) is 1252 and is required to be 65001. (SQL Server Import and Export Wizard)
Error 0xc00470d4: Data Flow Task 1: The code page on input column "PublicationStatus" (79) is 1252 and is required to be 65001. (SQL Server Import and Export Wizard) ....
What do I have to do?
Hi everyone I stumbled across this problem recently and have tried to figure out a good solution and have come up with nothing.
Environment: ADO.NET, ASP.NET 2.0, MS SQL 2000, C#
Problem: I have a set of data which I order according to two columns of data in the set. One column is a varchar or a date value (depending on what the user has chosen from GUI controls) and the other is an identity column. This dataset contains lots of data so its not feasible to pull the entire dataset to the client, also everything must be performed via ADO.net (no stored procedures). When the user selects one of the records I load another page and drill down into the record details (think of this as the record details page). This is fine and easy but on this record details page I would like to keep a Next and Previous button so users can move to the next record in the set (remember this set is sorted somehow on the previous page). My question is how can I know what next record should be? It would seem I need to attach a sequential number to the rows of data so I can easily grab the next one in the set. Solutions to this seem to make use of a temp table which I dont think is possible via ado.net.
Is there a decent performing way to do this through ado.net?
Thanks for all insight.
Hi all,I might be getting this all wrong but bear with me.
I need to create some kind of Unique field in my DB that is
nonsequential. This is because I need it to be difficult to guess
ids if you have an example in front of you.I have looked at
8digit EAN codes which include a check digit system.( I use a base digit of the row_id for these) Can anyone tell me
how many uniques I can get out of this system?For my ID: I have looked at something along the lines of:
Hex(row_id) + "T" + Hex( Trimmed(EAN)
)
The "T" serves to split the numbers for when I am converting back.
So for example:row_id EAN_code Hex(row_id) + "T" + Hex( Trimmed(EAN) )
------------------------------------------------------------------------------------------
3166 00031663 C5ET7BAF
3167 00031673 C5FT7BB9
3168 00031686 C60T7BC6
Is this too easy to guess (once you can tell there are two hex numbers there?)
What do people think?
Thanks,Pete
I am currently trying to get a dataset of sequential decreasing calculations, but they all end up on one row. I need each of the secondary selects statements to show up as separate rows, any idea?Select
(select Rate * @Premium from ProfitLossTable where rateID =1)
, (select Rate * @Premium - @premium from ProfitLossTable where rateID =1)
,(select @premium - Rate * @Premium from ProfitLossTable where rateID =3)
I have a query which returns information about transactions similar to this:
Select account, trans_code, quantity
from ledger_table
This returns something like:
acct trans_code quantity
----- ---------- ------------
2 2 1000
2 3 500
2 3 300
3 2 100
3 2 500
etc.
What I need to do is add a lot number for each acct/trans code type. This is merely a sequential number for the transaction. This changes the output as follows:
acct trans_code quantity lot
----- ---------- ------------ ---
2 2 1000 1
2 3 500 1
2 3 300 2
3 2 100 1
3 2 500 2
3 3 1000 3
3 5 200 1
etc.
The lot number is reset for each grouping.
Does anyone have a way to do this outside of a cursor or temp table?
TIA, any help greatly appreciated.
Hello--I need to create a SQl statement (SQL SERVER 2000) which will do the following:
read table1 sequentially
select every "nth" record
write each selected record to and output table
Your help is greatly appreciated.
thanks,
MB