How To Create Sql For Retrieving 10 Records Per Time In .NET
Aug 4, 2004
I want to create sql for retrieving 10 records per time but need to know the total result matches.
And I have previous and next button for retrieving previous or next 10 records.
I'm looking for a way of taking a query which returns a set of date time fields (probable maximum of 20 rows) and looping through each value to see if it exists in a separate table.
E.g.
Query 1
Select ID, Person, ProposedEvent, DayField, TimeField from MyOptions where person = 'me'
Table
Select Person, ExistingEvent, DayField, TimeField from MyTimetable where person ='me'
Loop through Query 1 and if it finds ANY matching Dayfield AND Timefield in Query/Table 2, return the ProposedEvent (just as a message, the loop could stop there), if no match a message saying all is fine can proceed to process form blah blah.
I'm essentially wanting somebody to select a bunch of events in a form, query 1 then finds all the days and times those events happen and check that none of them exist in the MyTimetable table.
Hi every body, I am making a program which is currently dealing with thousands of records. What I want is to have a button in the front END which make me able to fetch only first 100 record.If the desired record doesn't come with in first 100 record I press this button another time to fetch next 100 records i.e. from 101 to 199. How can it be possible in SQL Server stored procedure.
Eagerly waiting from all of you GENIUS people. Kailash
I'm trying to read from a table and return only the unique records from a table. The table has 3 columns, ID - Autoinc Amount - decimal 6,2 Name - varchar(10)
I am wanting to retreive only records 3 & 6 (values 0.05 0.06) as they are the only ones where amount is unique i.e. only 1 entry in the table.
I put the following sql statement together which achieves this but it it only returns the amount value select Count(amount),amount from bids group by amount having count(amount)<2 order by amount
So I then expanded it to read select Count(amount),amount,name from bids group by amount,name having count(amount)<2 order by amount not sure where i'm going wrong but the results returned were 0.03 0.03 0.05 0.06 0.07 0.07
Hi, first off, I'm a TOTAL novice at this stuff, I'm just currently blundering my way through a complex site to learn stuff. I'm trying to call the newest addition to a SQL database into a webpage, in this case, it'll be 'newest user', one result only. I've done several other data retrival sections using a datatable, but the guy who was helping me though it is unavailable at the moment and I get the feeling I've jumped into the deepend slightly. Could anyone give me an example of how retrieving the First N Records from SQL should look in VS? Does it need to be in a data table or can it go in a label? Sorry if this is somewhat vague, but as I said, I've really only been using VS for a week!
I need help with this. When I run the below script (only select) it retrives around 130K records and gives me the output within 2 mins. Whenever I try to put the same output in a temp or permanent table it takes hours. Any Idea why?
SET NOCOUNT ON
DECLARE @ImportId INT SET @ImportId = 5151
DECLARE @ResultXML XML SET @ResultXML = (SELECT ResultXML FROM tbRequests WITH(NOLOCK) WHERE ImportId = @ImportId)
SELECT resultNode.value('(./DealName)[1]','VARCHAR(200)') AS DealName, resultNode.value('(./CUSIP)[1]','VARCHAR(100)') AS CUSIP, CASE WHEN resultNode.value('(./Vintage)[1]','VARCHAR(100)') = '' THEN NULL ELSE resultNode.value('(./Vintage)[1]','INT') END AS Vintage, resultNode.value('(./PoolPoolType)[1]','VARCHAR(100)') AS PoolType, CASE WHEN resultNode.value('(./PaidOff)[1]','VARCHAR(100)') = '' THEN NULL ELSE resultNode.value('(./PaidOff)[1]','BIT') END AS PaidOff FROM @ResultXml.nodes('./WebService1010DataOutput') resultXml(resultXmlNode) CROSS APPLY resultXmlNode.nodes('./Results/Result') resultNodes(resultNode)
INSERT into #TResults (DealName,CUSIP,Vintage,PoolType,PaidOff) SELECT resultNode.value('(./DealName)[1]','VARCHAR(200)') AS DealName, resultNode.value('(./CUSIP)[1]','VARCHAR(100)') AS CUSIP, CASE WHEN resultNode.value('(./Vintage)[1]','VARCHAR(100)') = '' THEN NULL ELSE resultNode.value('(./Vintage)[1]','INT') END AS Vintage, resultNode.value('(./PoolPoolType)[1]','VARCHAR(100)') AS PoolType, CASE WHEN resultNode.value('(./PaidOff)[1]','VARCHAR(100)') = '' THEN NULL ELSE resultNode.value('(./PaidOff)[1]','BIT') END AS PaidOff FROM @ResultXml.nodes('./WebService1010DataOutput') resultXml(resultXmlNode) CROSS APPLY resultXmlNode.nodes('./Results/Result') resultNodes(resultNode)
CREATE TABLE [dbo].[tblSubscription]( [SubscriptionID] [int] IDENTITY(1000000,1) NOT NULL, [SubscriberID] [int] NOT NULL, [Status] [int] NOT NULL, [JournalID] [int] NOT NULL,
CREATE TABLE [dbo].[tblTransaction]( [TransactionID] [bigint] IDENTITY(100000000,1) NOT NULL, [TransactionTypeID] [int] NOT NULL, [SubscriptionID] [int] NOT NULL, [Created] [datetime] NOT NULL,
CREATE TABLE [dbo].[tblMailing]( [MialingID] [bigint] IDENTITY(1000000000,1) NOT NULL, [SubscriptionID] [int] NOT NULL, [MailTypeID] [int] NOT NULL, [MailDate] [datetime] NOT NULL
So for each subscription there can be 1 or more transactions and 0 or more mailings, and the mailings are not necassarily related to the transactions. What I am having difficulty doing is this:
I wish to select tblMailing.MailingID, tblMailing.MailDate, tblMailing.SubscriptionID (or tblSubscription.SubscriptionID), tblSubscription.SubscriberID, tblSubscription.Status, tblTransaction.TransactionID, tblTransaction.Created, but I only wish to retrieve rows from the transaction table where tblTransaction.Created is the latest dated transaction for that subscription. I.E. (maybe this makes more sense..:) I wish to select all rows from tblMailing along with each mailing's relevent subscription details, including details of the LATEST TRANSACTION for each of those subscriptions.
I am currently working along the lines of MAX(tblTransaction.Created) and possibly GROUP BY in a subquery, but cannot quite figure out the logic.
We have a domain where all computers are on GMT(Greenwitch Mean Time). We have an access front end that timestamps certain fields according to the client time that the program is running on, but we will be moving our client workstations off of GMT time and keep our SQL Server on GMT time, and want to keep the timestamps GMT.
So, I wanted to know if it was possible to create a stored procedure that gets the Server's time and returns it to the Access frontend for entry into the timestamp fields?
Or, if anyone has a better idea of how to get the time from the server to use on the clients, I would greatly appreciate it!!!
if I create an index for a table with some records, do you think I can retrieve records in a giving range? for example, the 5th to 10th records?Possible? How can I do it?When we insert data at the table, would the index in sequential order? How would the index be created for new inserted records?I'm using SQL 2005 Express, not SQL 2000.
Hi, My application needs to retrieve data from a table which has more than 15 lakh records. The records keep increasing in thousands every 15 days. Is there anyway i can reduce the time to retrieve? basically i have a select statement with a few conditions and a clause for the id's of these records.
The TSQL below all works except the bolded part at the end. I'm want to grab only the most recently logged piece of equipment not the most recent and all past ones as well which is what I've got doing minus the bolded part below. But I don't know how to say get this Equipment ID etc and only the most recently logged one to find its present location. The bolded part below is just there to show what I want it to do I know you can use an aggregate in a where clause. So in the first table listed tblRdrLog there is a column Time that I want to do this on so a.Time. I don't want to display a.Time just reference.
String dbsql = " SELECT a.EquipmentID " + " , f.Subcategory " + " , c.Area " + " , d.Room " + " FROM tblRdrLog a " + " JOIN tblRdrInfo b ON a.ReaderID = b.ReaderID " + " JOIN tblRdrArea c ON b.AreaID = c.AreaID " + " JOIN tblRdrRm d ON b.RoomID = d.RoomID " + " JOIN tblEquipInfo e ON a.EquipmentID = e.EquipmentID " + " JOIN tblEquipSubcat f ON e.SubcategoryID = f.SubcategoryID " + " WHERE a.EquipmentID IN (SELECT a.EquipmentID " + " FROM tblEquipInfo a " + " JOIN tblEquipCat b ON a.CategoryID = b.CategoryID " + " JOIN tblEquipSubcat c ON a.SubcategoryID = c.SubcategoryID " + " LEFT OUTER JOIN tblEquipMake d ON a.MakeID = d.MakeID " + " LEFT OUTER JOIN tblEquipModel e ON a.ModelID = e.ModelID " + " JOIN tblStatus f ON a.StatusID = f.StatusID " + " WHERE b.CategoryID = '" + this.ddlCategory.SelectedValue.ToString() + "' ";
if (!"".Equals(this.ddlSubcategory.SelectedValue.ToString())) dbsql += " AND c.SubcategoryID = '" + this.ddlSubcategory.SelectedValue.ToString() + "' ";
#region Advanced Search Criteria
// Check whether advanced search submitted if (adv) { if (!"".Equals(this.tbSerialNo.Text.ToString())) dbsql += " AND a.SerialNo = '" + this.tbSerialNo.Text.ToString() + "' "; if (!"".Equals(this.ddlMake.SelectedValue.ToString())) dbsql += " AND d.MakeID = '" + this.ddlMake.SelectedValue.ToString() + "' "; if (!"".Equals(this.ddlModel.SelectedValue.ToString())) dbsql += " AND e.ModelID = '" + this.ddlModel.SelectedValue.ToString() + "' "; if (!"".Equals(this.ddlStatus.SelectedValue.ToString())) dbsql += " AND f.StatusID = '" + this.ddlStatus.SelectedValue.ToString() + "' "; }
I have built a Sales Forecast model to predict the sales value. Along with making historic predictions for previous time periods I also want to retrieve the actual sales values for those periods.
How can I achieve this in a time series model?
I also would like to know how do mining models store the data.
Do they store the data in the same table/view format as their respecive data source view or in the Model Content format.
Hi all,I have a table with this structure:Customer ID | Transaction date | Transaction type1 | 1/2/2008 | F1 | 1/4/2007 | M1 | 1/2/2008 | R2 | 1//5/2007 | M2 | 1/6/2007 | RFor each customer ID, I need to retrive only the records with the mostrecent transaction date, and I did:Customer ID | Transaction date | Transaction type1 | 1/2/2008 | F1 | 1/2/2008 | R2 | 1/6/2007 | RThe problem is, each customer can make more than one transaction inthe same day (see above). In these cases, I need to retrieve only onerecord per customer, based on the importance of the transaction: F ismore "important" than R which is more "important" than M. So, in theexample above, I would only retrieve transaction F for customer 1 anddisregard transaction R: they were made on the same date, but I ammore interested in F than in R.Do you have any suggestions on how I could achieve this in SQL?I use Microsoft SQL server 2005.Thank you for your help!
I need to provide a minimum value over a 12 hour time range of data. I'm struggling with performance issues due to the amount of data. Currently I log about 100 devices reporting once per minute into a table. Also about once per minute I need to pull the minimum value reported for each device in the last 12 hours. Currently I'm maintaining a separate table with entries for just the last 12 hours and just performing a Select Min(Temp) Where DeviceID=x, but it already holds about 700,000 records at any given time. The number of devices will increase substantially and this will no longer be viable.
Sample Table ID DeviceID Temp InsertDate 1 10 55 04-28-2015 8:00 AM 2 65 74 04-28-2015 8:00 AM 3 44 23 04-28-2015 8:00 AM 4 10 87 04-28-2015 8:01 AM 5 65 65 04-28-2015 8:01 AM
Can anyone help me on this... when i select data from table using select statement it takes huge amount of time....The table contains 7 million entries and when i select by mentioning a criteria it takes around 45 secs..The system has 4GB RAM and Dual Processing CPU. The select statement does not contain any grouping and all..
Will it take this much time to retrieve data.?. The table does include an indexed field, So can anyone help me on the different things i can do to make the retrieval faster?
MySql has a statement like: SHOW CREATE TABLE tablename;
that returns the precise CREATE TABLE statement for the specified tablename.
Sql Management Studio also allows scripting Create Statement for any object by right-clicking it. But I want to do this programatically, and fetch CREATE statements for Tables, Procedures & Views.
How can I retrive CREATE statements for Database objects progrmatically in Sql Server???
USE [Testing] GO /****** Object: Table [dbo].[Testing] Script Date: 4/25/2014 11:08:18 AM ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON
[Code] ....
It seems to work fine with one million records.
Each primary key is unique, but the begindate is non-unique, and i guess even if i use datetime2 and add nanoseconds, from what i have read, there is a chance that i could have a duplicate datetime since the date is imported via XML from multiple sources.
Hi There,This is related to a ms access database but since I use the SqlDataSource control I thought I should post here.I have a project that I was working on with this ms access db and using sql controls, everything was working just finesince one day I started getting "Object reference not set to an instance of an object" messages when I try to designa query or retrieve a schema, nothing works at design time anymore but at runtime everything is perfect, its a lotof work for me now to create columns,schemas and everything manually, I've tried reinstalling visualstudio, ado componentsbut nothing seems to fix it, did this ever happen to any of you guys?any tip is really appreciated thanks a lot
Nothing difficult, I just need a way to generate a new datetime column based on the column [PostedDate], datetime. So basically I want to truncate the time. Thanks a lot.
Ok, I'm really new at this, but I am looking for a way to automatically insert new records into tables. I have one primary table with a primary key id that is automatically generated on insert and 3 other tables that have foreign keys pointing to the primary key. Is there a way to automatically create new records in the foreign tables that will have the new id? Would this be a job for a trigger, stored procedure? I admit I haven't studied up on those yet--I am learning things as I need them. Thanks.
I have an SQL table with the following structure (this is an example):
Event ID Date Server Status 200 01/01/2008 15:00:00 server1 Up 201 01/01/2008 15:00:01 server2 Up 202 01/01/2008 15:00:02 server3 Up 203 01/01/2008 15:00:03 server1 Up 204 01/01/2008 15:00:04 server2 Up 205 01/01/2008 15:00:05 server3 Up 206 01/01/2008 15:00:06 server1 Down 207 01/01/2008 15:00:07 server2 Up 208 01/01/2008 15:00:08 server3 Up
I made a view that brings all the events of an especific server, let say server 1, the view shows:
Event ID Date Server Status 200 01/01/2008 15:00:00 server1 Up 203 01/01/2008 15:00:03 server1 Up 206 01/01/2008 15:00:04 server1 Down
The objective: Calculate the uptime for a server.
The question is:
How do I calculate the time elapsed between one record of the view and the previous one?
Hi, I get 5000 records on executing a query. In the form, I would like to display 50 records at a time in the grid from this resulted query, so i create 100 link labels(dynamically created based on the no. of records resulted from the query) within a panel.
When clicked on link1, first 50 records should be displayed,on clicking link2 next 50 records(ie, 51 to 100) should be displayed and so on. So , i wrote the query as---
select top(50)* from tblindividual where id not in (select top(intValue)id from tblindividual )
where intValue would be 50 for link2,100 for link3,150 for link4 and so on
If i want to fetch last 50 records of the query, intValue would be 4950.Here the "not in" list becomes very big(1,2,3,.......,4949,4950) and hence the query is becoming a bit slow...
Is there any other method(query) to get the same result??.. because i heard that using "not in" keyword would make query execution slow.
I have some difficulties with TSQL where i need to calculate time between two records in seconds. Records look like this: ID IP DATE CHANNEL_ID #CALCTIME 1 10.132.184.226 12/06/2007 08:00:00 406 35 2 10.96.121.230 12/06/2007 08:00:10 1 45 3 10.128.242.214 12/06/2007 08:00:20 4 39 4 10.132.184.226 12/06/2007 08:00:30 2 5 10.96.121.230 12/06/2007 08:00:55 3 6 10.96.121.214 12/06/2007 08:00:59 3 21 7 10.96.121.214 12/06/2007 08:01:20 4 .........................................................................................................
Basically i would need to calculate the time between 2 records with the same IP (next one with the same IP) and calculate the time between the DATE which is basically attached to the first record. As you can see the first #CALCTIME is done between the ID #1 and ID#4 which means that the time difference must be done between the current and the next record.
I want to use time series algorithm to mine data from my case table and nested table. Case table is Date table, while nested table is the fact table. E.g, I want to predict the monthly sales amount for different region (I have region table related to the fact table), how can I achieve this?
Thanks a lot and I hope it is clear for your help and I am looking forward to hearing from you shortly.
Hi,There are about 30 millions records on my mssql server and I want to access 2 million of them at one time. However, when I try to access with sql command I get time out error. I want to select first 100 record and select the other 100 and so on. May I obtain this?For example;select * from tbl_Customer where name = @name_ ->time out errorSomeone has said that you can solve this problem with < cursors > but I can't find enough article. Thanks...
Hello all, I have a DTS package set up to import a text file on a daily basis. I need to dump the data in 2 table after 7 days of the last import .this is the code that I have Delete From TblTemp date(Day(-7), CurrentStamp). But for some reason it deleting the data right after it imports it. And it doesn't delete anything out of the other table.
I want to delete my record after ten days of the Posted date(field)..how do I do it? I'm able to insert date(short date , long time) to the database. I'm using sql server and C#. this is what I have so far.I would appreciate your help..
I am developing a form for a mortgage company. There can be any number of borrowers on a given loan, and the business has asked that this form return only 2 borrowers at a time for a loan. For example, if there are 3 borrowers for a loan, they want the first copy of the form to print the first 2 borrowers and then another copy of the form to print the 3rd. No matter how many copies are printed, they want the borrower information to be labeled as 'Borrower1' xyz and 'Borrower2' xyz. Also, there will be a LOT more fields returned on the real form, so the sample information below is very simplified test data.
I don't want that 2nd record to return. This result is what makes me think of gaps and islands, but I don't know if the 2nd record is really an island since it's (1) not stored this way...it's returning this way because of the query and (2) it's not sequential data..I tried restricting this by putting this into a CTE and then returning only the odd numbered records like I have below. This runs pretty quickly when dealing with one loan. But...I am concerned that the CTE will be slow when we run batches of loans.
Attempt with CTE: --With CTE ;WITH cte AS (SELECT Borrower1 = BorrowerName , Borrower2 = LEAD(BorrowerName) OVER(ORDER BY BorrowerOrder) , RowNumber = ROW_NUMBER() OVER(ORDER BY BorrowerOrder)
[code]...
Is there a better, cleaner way to do this? Or is the CTE the best way to go?
I want to group the records on the time difference
declare @tbl as table(id int,intid int,val int,dt datetime) insert into @tbl select 1,1,10,'03/31/2006 15:05:22' union all select 2,1,12,'03/31/2006 15:10:22' union all select 3,1,15,'03/31/2006 15:15:22' union all select 4,1,12,'03/31/2006 15:25:22' union all select 5,1,8,'03/31/2006 15:30:22' union all select 6,1,6,'03/31/2006 15:35:22' union all select 7,1,4,'03/31/2006 15:40:22' union all select 8,1,3,'03/31/2006 15:45:22' union all select 9,1,10,'03/31/2006 15:50:22'
declare @tbl1 as table(intid int,Tm int,val int) insert into @tbl1 select 1,5,10
I want a output such that when the val in @tbl goes below the val in @tbl1 for the Tm mentioned in @tbl1 then the time difference should be shown.For example record 1 it starts with 10 the records remain more than 10 till record number 5.From 5 the records remains lower than 10 till record number 9.So I need to show the the time difference from record number 5 till 9. But there is a catch.In @tbl1 there is column named Tm.The time difference sould be calculated only if the diff more than Tm value in @tbl1. For example if the value of Tm is changed to say 25 then the there is no need to show the time difference since the time difference value from record 5 to record 9 is less than 25. Hope I am clear.