Query Problem: Automatically Resetting A Sequential Number List After Row Deletion
Apr 7, 2004
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
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??
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.
Hi, I have a report where i do a page break for each supplier. I want to reset my page number to '1' when there is a group break.When i googled for this functionality i found the following chris Hay's blog which provides the solution. http://blogs.msdn.com/chrishays/archive/2006/01/05/ResetPageNumberOnGroup.aspx But if i follow the same, I get #Error instead of page number during the run time.How do i resolve the error? Also, I want to display the "page 1 of totalpages in group" like that. Is that possible?
We 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
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.
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?
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
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.
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)
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.
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
Ok, so I have an issue, was wondering if anybody else has any suggestions.
I have a table that is pretty large, in all regards. It is a "message" table that holds text messages that users send to each other.
1. Has some data fields, integers, dates, some bit columns, a message subject field (varchar(250)), and a message body field (field type = text) 2. Table contains about 70 million records 3. Table has 6 indexes associated to it 4. Table has 2 views associated to it. 5. Table has 8 foreign keys associated to it.
I need to delete, oh, about 90,000 records out of this 70 million record table. I am able to disable the foreign keys to this table for deletion, but that does not seem to mitigate the problem. I think the issue lies with having to update the indexes as well as the views.
When I execute the select statement to retrieve the records I need to delete, it executes pretty quickly, no problems there that I can see.
The issue comes when I try to delete the records, it takes way too long, and we know it. We let it run for an hour and it didn't really get anywhere. This is in a server environment, some pretty decent hardware, 8gig memory, fast SCSI drives, 8 core processors, i don't know the exact specifics, but they're not bad.
This is from our dev environment which is but a portion of our production db- but I presume our production environment will have similar percentages (not necessarily the pages scanned)
Any suggestions on how to delete records efficiently?
hi, i am a newcomer and a freshman in asp.net. i am now writing a web-based system for SME as my final year project. i am going to use sql server and asp.net in C# to perform my final year project. as asp.net is new for me, i would have some simple problems to ask. 1. in the project, i would like the system can automatically generate the enquiry number for each new order input to the system. for example today is 05 July 2006, the enquiry number would like 2006211xxxx, where 2006 is year, 211 is the day count start from 1 Jan and xxxx is the random number/ ordered number. how can i implement this? i even don't know how to generate the ordered number. could anyone help me 2. if there is an unknown test sample in each order input. as the sample number for each order is different, how can i set a flexible table that can have different number of rows for user to input the test result. thanks Rgds, universe
I've posted about this before so apologies to anyone who read it the first time.
I want to have an ID column in my table, but I want the automatically generated number to have a prefix such as ABC. I'd also like to be able to change this prefix from an asp page depending on what is selected from a drop down.
Is any of this possible? I'd really appreciate a reply, even if it's to say this can't be done. Thanks
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:
Let's say I have the following table:entry product quality1 A 802 A 703 A 804 B 605 B 906 C 807 D 808 A 509 C 70I'm looking for a way to find the average "quality" value for aSEQUENTIAL GROUPING of the same Product. For exmple, I need anaverage of Entry 1+2+3 (because this is the first grouping of the sameproduct type), but NOT want that average to include row 8 (which isalso Product A, but in a different "group".)I'm sure it can be done (because I can describe it!), but I'll be amonkey's uncle if I can figure out how. I would imagine it wouldinvolve some sort of running tally that references the next record asit goes... to see if the product type has changed. Perhaps use of atemporary table?Muchas gracias!!Cy.
I have a database that is pre-populated with sequential part numbers.As people reserve the parts I update a flag to show the # is no longeravailable. Now they want the ability to take out a block of "x"number of sequential part numbers - say for example 5.If my database had the following numbers available:101104105110111112113114It should return 110 thru 114 and then I would write an update queryto change the flags to 1 (checked out).I have only been able to return the first "x" number of records - havenot been able to make sure they are stepped sequentially - with thefollowing:SELECT ID_ITEM From PARTNO_CHKOUT_SPECIAL M Where (Select Count(*)FROM PARTNO_CHKOUT_SPECIAL NWHERE N.ID_ITEM <= M.ID_ITEM) >= 0 AND TYPE_REC=1 ANDFLAG_CHECKED_OUT=0 {maxrows 5}The above would return 101, 104, 105, 110, 111I tried using an (N.ID_ITEM+1)-M.ID_ITEM=0 to try stepping and geterrors, probably incorrect syntax. Can I do this in an SQL statement?
I wanted to know the best way to achieve the following results. I have a table that I need output sequential range of vouchers in a table. For instance I have the following data in a column called vouchers. The output will consist of a years worth of vouchers, so voucher numbers may contain gaps and so the need to have a sequential range that has a From and To output. The query needs to know the min and max within that numerical range and then output the next min and max range until it gets to the end.
The data looks like: ABCD-001869202 ABCD-001869203 ABCD-001869204 ABCD-001869205 ABCD-001869209 ABCD-0018692010 ABCD-0018692011 ABCD-001869309 ABCD-001869310 ABCD-001869311 ABCD-001869312 ABCD-001869313 ABCD-001869314
Desired out put:
From To ABCD-001869202 ABCD-001869205 ABCD-001869209 ABCD-0018692011 ABCD-001869309 ABCD-001869314
I have tried the following, but it does not quite do what I need it to do, so not sure if I am taking the right approach:
SELECT voucher vouchers,right(voucher, charindex('-', voucher) + 3) voucher INTO #tempVoucher FROM LEDGERJOURNALTRANS where TRANSDATE between '10/1/2013' and '7/31/2014' and VOUCHER like 'APIN%'
I have a matrix inside a list box that groups by "question id" to display matrices with summaries for each question. I have checked the box "Insert page break after this list".
I want to be able to place the list box number next to the question, so that I will see something like:
1. Name
2. Category
3. Age
Is there a way to do this? Can I access the current number within the list? If I try the Globals!PageNumber variable, I get an error saying that the variable can only be used in a header or footer.
Ok, I want to write a stored procedure / query that says the following: Code: If any of the items in list 'A' also appear in list 'B' --return false If none of the items in list 'A' appear in list 'B' --return true
In pseudo-SQL, I want to write a clause like this
Code:
IF (SELECT values FROM tableA) IN(SELECT values FROM tableB) Return False ELSE Return True
Unfortunately, it seems I can't do that unless my subquery before the 'IN' statement returns only one value. Needless to say, it returns a number of values.
I may have to achieve this with some kind of logical loop but I don't know how to do that.
Line 1 Name: George Addresss date raise 125254 Test 10 125254 Test 10 125254 Test 10 125254 Test 10
Total: 80% 40
Name: Mik Addresss date raise 125254 Test 10 125254 Test 10 125254 Test 10
Total: 70% 30
Name: Jonathan Addresss date raise 125254 Test 10 125254 Test 10 125254 Test 10
Total: 70% 30 Line 10
Line 15 Total for this division: 33% ((100 )/3) 100
Department:B ¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦.. Here is what I did I have a list control that is grouped by department. this will get me the info from Line 1 to Line 10 then this list control is actually under another list control that is grouped by department to get the info from Line 15. I used this example for simplicity and what I am doing is fairly similar to this situation. My problem is, I need to find away to know how many totals I have to count the total for the entire department. In other words : from the example above how can I know I have to divide by 3 to get 33%. I can get the 100 without any problem but I cant tell what number I need to divided by. I tried to use Count(Name.Field) I was hoping this will give me 3 which indicates the divided number. But I was getting 7 for some reason. How can I get the number of times the list control was implemented for one department which is in this case 3?
i want to break 2 by 2 rows in reportceiling(rownumber(nothing)/2).i used this expression in row group.Β URL....but i want to use this expression in matrix and that matirx is with in list . so i Β am getting error .Β how to use rownumber in list.here i used list to break the page wise id
I'm trying to print my query name with my results. I know I can use PRINT and a string, but I would like to know if a variable exists that contains my query name. That way I could have one command I can use in all queries.
I have a simple query (a select statement which retrieves results from 2 tables via join). I run this query every week and just copy the results from Management Studio (Ctrl-A) and then open Microsoft Excel and just paste it there. Is there a way I can automatically run this every week and generate the Excel from the results? If so what steps I have to do? I use SQL Server 2005 Express Edition.
I have problem using the sp msdb.dbo.sp_send_dbmail....it will give error like "the EXECUTE permission was denied on the object 'sp_send_dbmail', database 'msdb', schema 'dbo'". i am using godaddy...plz help me how to rectify the error...give me the full answer.... thank muthu6500
I have a question for you. I have a product database with a lookup that pulls by product number. All my product numbers are made up the same way. IE. N59840, N00951, N00951. ect.
I have a stored procedure that looks up by that product number with a "LIKE" statement that looks like this.
WHERE ([Product#] LIKE '%' + @PRODUCTNUM + '%')
Which has this problem if someone types in "852" it returns
N00852 N05852 N98852
Is there anyway that I can have SQL put in zeros to fill up the 5 number spots so "852" brings up "00852" or "5852" brings up "05852"
I'm very new to SQL but I have figured out how to do my first query. Now I would like to automate it to send the query as an attachment to users automatically (scheduler/cron??). How would you go about this, I need step by step hints. I'm using SQL Query Analyzer ver 8.00.2039 to generate the query from CDR records. Is this even possible?
I'm trying to update (increment) Company.SumtotalLogons from CompanyUsers.NumberOfLogons where CompanyUsers.CompanyID = Company.CompanyID
I'd like to either write a formula (if it is even possible to fire a formula from one table update/insert to increment a field in another table), or a stored procedure that triggers an auto update/append into Company.SumTotalLogons
I know this is possible in access, so i'm wondering how to go about it in ms-sql?
