We have an application that has about 100 users at a time. Roughly once a day, we experience a complete slowdown on the server. All users notice it. The network seems fine because I can ping the server. Also, I can attach to drives on the server quite fast so I don`t think it`s server resources. When I manage to get in and do an sp_who, certain processes are blocking others. Talking to the users who were blocking, they were not doing anything out of the ordinary - one was even doing just a select. The error log is full of 17824 and 1608 errors. Is there some configuration setting that I should change? This is getting serious!
CREATE TABLE #Attendance( [ID] [int] IDENTITY(1,1) NOT NULL, [StudentID] [int] NOT NULL, [ClassID] [int] NOT NULL, [DateAdded] [datetime] default getdate() NOT NULL ) ON [PRIMARY]
insert into #Attendance(StudentID,ClassID,DateAdded) values(1,1,'2014-10-07 10:38:02.900')
[Code] ....
DateAdded column in first table is nothing but in and out time.
Now I want to prepare a query where I want to consider MIN DateAdded and max DateAdded and calculate the duration of student present in the class.
Validations i need to consider are:
If class is starting at 10am then student can come at 9:50am, i.e. Dateadded column should consider as student present in that class if value is less that 10 minutes of StartTime from #ClassAttendance table. Class End time i want to calculate depending upon ClassMinutes from #ClassAttendance
Also DateAdded column should be 10 minutes plus compared to calculated endtime. If its more than that consider lower DateAdded time.
And by using this thingIi want to calculate total number of minutes student present in the class and number of minutes absent.
If there is only one DateAdded for class then consider as a absent student.
Time Interval for hour and 30 minutes --------------------------------------------------------------------------------
Hi Everyone
I Have column in sql server databas as "HHMMSS" and data as and i am doing a substring to get values for hours and minutes. since my calculations based on hour interval and 30 minutes interval
for ex: Now i want to show all the transaction done b/w 6 to 7 am or pn.
and for 30 minutes interval i have get the calculation as transactions done b/w 6:00 to 6:30 and 6:30 to 7:00 either it's am or pm. now how i can write my sql statements that calculates hour and 30 minutes intervals HHMM ------------- 06:43 09:26 09:26 11:58 12:25 18:17 20:45 00:43 00:53 16:47
I have written a function that returns the number of Days, Hours and minutes from a given number of minutes. On testinf the results are close but not quite there. Can anyone see where I have gone wrong or is there an easier way of doing this? Code is as follows:
CREATE FUNCTION dbo.GetTimeBetweenLong (@StartTime DateTime, @EndTime DateTime, @CurrentDate DateTime) RETURNS VarChar(50) AS BEGIN DECLARE @TotalTime Numeric DECLARE @Minutes Numeric DECLARE @Hours Numeric DECLARE @Days Numeric DECLARE @MinutesInDays Numeric
IF @EndTime IS NULL BEGIN SET @Days = DATEDIFF(Day, @StartTime, @CurrentDate) SET @Hours = DATEDIFF(Hour, @StartTime, @CurrentDate) - (@Days * 24) SET @Minutes = DATEDIFF(Minute, @StartTime, @CurrentDate) - ((@Days * 24)*60) - (@Hours * 60) END ELSE BEGIN SET @Days = DATEDIFF(Day, @StartTime, @EndTime) SET @Hours = DATEDIFF(Hour, @StartTime, @EndTime) - (@Days * 24) SET @Minutes = DATEDIFF(Minute, @StartTime, @EndTime) - ((@Days * 24)*60) - (@Hours * 60) END
IF(@Days <0) BEGIN SET @Days = @Days - @Days - @Days END
IF (@Hours < 0) BEGIN SET @Hours = @Hours - @Hours - @Hours END
IF (@Minutes <0) BEGIN SET @Minutes = @Minutes - @Minutes - @Minutes END
I am trying to convert hours and minutes to decimal and arrive at a sum of time taken. The column TotalTimeSpent is the diff in hours/mins between the Started and Ended times.
SELECT DATENAME(weekday, Started) AS Day, C.Category, ClientCode,Description, dbo.FormatDateTime(Started, 'HH:MMS 12') as Started, dbo.FormatDateTime(Ended, 'HH:MMS 12') as Ended, CONVERT(varchar,TimeTaken,108) AS TotalTimeSpentFROM dbo.Journal JLEFT OUTER JOIN dbo.Categories C ON J.CategoryID = C.CategoryIDWHERE--DATENAME(weekday, Started) =@Weekday AND Started >= @StartDate ORDER BY Day, Category, Started
The query below runs in sub second time if I don't call it as a stored procedure. I have looked at the execution plan for both the query and the query as a stored procedure and they are the same. When I put the query into a stored procedure it takes over 2 minutes to run. All feedback (even the ugly stuff) is more than welcome. I want to master this issue and forever put it behind me. This is the sql when I just execute it outright:1 DECLARE 2 @WebUserID nvarchar(20) 3 ,@DocumentTypeID int 4 ,@RouteID nvarchar(10) 5 ,@CustomerID nvarchar(15) 6 ,@DocumentIDPrefix nvarchar(20) 7 ,@StartDate datetime 8 ,@EndDate datetime 9 ,@OversoldOnly bit 10 ,@DexCustomersOnly bit 11 ,@DeviationsOnly bit 12 ,@CashNoPaymentOnly bit 13 ,@SignatureName nvarchar(45) 14 ,@SortExpression varchar(200) 15 ,@StartRowIndex int 16 ,@MaximumRows int 17 18 SET @WebUserID = 'manager' 19 SET @DocumentTypeID = 0 20 SET @DocumentIDPrefix = '%' 21 SET @StartDate = '04/17/2007' 22 SET @EndDate = '04/19/2007' 23 SET @OversoldOnly = 0 24 SET @DexCustomersOnly = 0 25 SET @DeviationsOnly = 0 26 SET @CashNoPaymentOnly = 0 27 SET @SortExpression = '' 28 SET @StartRowIndex = 0 29 SET @MaximumRows = 20; 30 31 WITH OrderedDocumentHistory AS 32 ( 33 SELECT 34 dh.DocumentHistoryID 35 ,dh.DocumentID 36 ,dh.DocumentTypeID 37 ,dh.DocumentTypeDesc 38 ,dh.RouteID 39 ,dh.RouteDesc 40 ,dh.CustomerID 41 ,dh.CustomerName 42 ,dh.DocDate 43 ,ISNULL(dc.HasReceipt, 0) AS 'HasReceipt' 44 ,ddt.Description AS 'SignatureReason' 45 ,a.Amount 46 ,ROW_NUMBER() OVER (ORDER BY dh.DocDate DESC) AS 'RowNumber' 47 FROM 48 DocumentHistory dh 49 INNER JOIN Customers c ON dh.CustomerID = c.CustomerID 50 INNER JOIN DeviationTypes ddt ON dh.DriverDeviationTypeID = ddt.DeviationTypeID 51 INNER JOIN 52 ( 53 SELECT 54 DocumentHistoryID 55 ,(COALESCE(SUM((CONVERT(INT, Units + DeviationUnits)) * (UnitPrice - UnitDiscount)) + SUM((CONVERT(INT, Cases + DeviationCases)) * (CasePrice - CaseDiscount)), 0.0)) AS Amount 56 FROM 57 DocumentHistoryItems dhia 58 GROUP BY 59 dhia.DocumentHistoryID 60 ) AS a ON a.DocumentHistoryID = dh.DocumentHistoryID 61 LEFT OUTER JOIN 62 ( 63 SELECT DISTINCT 64 dca.DocumentID 65 ,1 AS 'HasReceipt' 66 FROM 67 DocumentCollections dca 68 ) AS dc ON dh.DocumentID = dc.DocumentID 69 WHERE 70 dh.DocDate BETWEEN @StartDate AND @EndDate 71 AND (dh.DocumentTypeID = @DocumentTypeID OR @DocumentTypeID IS NULL) 72 AND (dh.RouteID = @RouteID OR @RouteID IS NULL) 73 AND (dh.CustomerID = @CustomerID OR @CustomerID IS NULL) 74 AND dh.DocumentID LIKE @DocumentIDPrefix 75 AND CASE WHEN @OversoldOnly = 1 THEN ISNULL( (SELECT TOP 1 (dhio.DeviationUnits + dhio.DeviationCases) FROM DocumentHistoryItems dhio WHERE dh.DocumentHistoryID = dhio.DocumentHistoryID AND (dhio.DeviationUnits > 0 OR dhio.DeviationCases > 0)), 0) ELSE 1 END > 0 76 AND CASE WHEN @DexCustomersOnly = 1 THEN c.DEXEnable ELSE 'Y' END = 'Y' 77 AND CASE WHEN @DeviationsOnly = 1 THEN ISNULL( (SELECT TOP 1 (dhio.DeviationUnits + dhio.DeviationCases) FROM DocumentHistoryItems dhio WHERE dh.DocumentHistoryID = dhio.DocumentHistoryID AND (dhio.DeviationUnits != 0 OR dhio.DeviationCases != 0)), 0) ELSE 1 END != 0 78 AND CASE WHEN @CashNoPaymentOnly = 1 THEN dh.Terms ELSE 'CHECK/CASH' END = 'CHECK/CASH' 79 AND CASE WHEN @CashNoPaymentOnly = 1 THEN (SELECT MAX(dhio.AlcoholPct) FROM DocumentHistoryItems dhio WHERE dhio.DocumentHistoryID = dh.DocumentHistoryID) ELSE 1 END > 0 80 AND CASE WHEN @CashNoPaymentOnly = 1 THEN ISNULL(dc.HasReceipt, 0) ELSE 0 END = 0 81 AND (dh.SigName = @SignatureName OR @SignatureName IS NULL) 82 AND (c.WarehouseID IN (SELECT WarehouseID FROM WebUserWarehouses WHERE WebUserID = @WebUserID) 83 OR @WebUserID IS NULL) 84 ) 85 86 SELECT 87 DocumentHistoryID 88 ,DocumentID 89 ,DocumentTypeDesc 90 ,RouteID 91 ,RouteDesc 92 ,CustomerID 93 ,CustomerName 94 ,DocDate 95 ,Amount 96 ,HasReceipt 97 ,SignatureReason 98 FROM 99 OrderedDocumentHistory 100 WHERE 101 RowNumber BETWEEN (@StartRowIndex + 1) AND (@StartRowIndex + @MaximumRows) Here is the sql for creating the stored procedure. 1 CREATE Procedure w_DocumentHistory_Select 2 ( 3 @WebUserID nvarchar(20) 4 ,@DocumentTypeID int 5 ,@RouteID nvarchar(10) 6 ,@CustomerID nvarchar(15) 7 ,@DocumentIDPrefix nvarchar(20) 8 ,@StartDate datetime 9 ,@EndDate datetime 10 ,@OversoldOnly bit 11 ,@DexCustomersOnly bit 12 ,@DeviationsOnly bit 13 ,@CashNoPaymentOnly bit 14 ,@SignatureName nvarchar(45) 15 ,@SortExpression varchar(200) 16 ,@StartRowIndex int 17 ,@MaximumRows int 18 ) 19 AS 20 SET NOCOUNT ON 21 22 IF LEN(@SortExpression) = 0 OR @SortExpression IS NULL 23 SET @SortExpression = 'Number DESC' 24 25 IF @StartRowIndex IS NULL 26 SET @StartRowIndex = 0 27 28 IF @MaximumRows IS NULL 29 SELECT 30 @MaximumRows = COUNT(dh.DocumentHistoryID) 31 FROM 32 DocumentHistory dh; 33 34 WITH OrderedDocumentHistory AS 35 ( 36 SELECT 37 dh.DocumentHistoryID 38 ,dh.DocumentID 39 ,dh.DocumentTypeID 40 ,dh.DocumentTypeDesc 41 ,dh.RouteID 42 ,dh.RouteDesc 43 ,dh.CustomerID 44 ,dh.CustomerName 45 ,dh.DocDate 46 ,ISNULL(dc.HasReceipt, 0) AS 'HasReceipt' 47 ,ddt.Description AS 'SignatureReason' 48 ,a.Amount 49 ,CASE 50 WHEN @SortExpression = 'Number DESC' THEN (ROW_NUMBER() OVER (ORDER BY dh.DocumentID DESC)) 51 WHEN @SortExpression = 'Number ASC' THEN (ROW_NUMBER() OVER (ORDER BY dh.DocumentID ASC)) 52 WHEN @SortExpression = 'CustomerName DESC' THEN (ROW_NUMBER() OVER (ORDER BY dh.CustomerName DESC)) 53 WHEN @SortExpression = 'CustomerName ASC' THEN (ROW_NUMBER() OVER (ORDER BY dh.CustomerName ASC)) 54 WHEN @SortExpression = 'CompletedDate DESC' THEN (ROW_NUMBER() OVER (ORDER BY dh.DocDate DESC)) 55 WHEN @SortExpression = 'CompletedDate ASC' THEN (ROW_NUMBER() OVER (ORDER BY dh.DocDate ASC)) 56 WHEN @SortExpression = 'RouteDescription DESC' THEN (ROW_NUMBER() OVER (ORDER BY dh.RouteDesc DESC)) 57 WHEN @SortExpression = 'RouteDescription ASC' THEN (ROW_NUMBER() OVER (ORDER BY dh.RouteDesc ASC)) 58 END AS 'RowNumber' 59 FROM 60 DocumentHistory dh 61 INNER JOIN Customers c ON dh.CustomerID = c.CustomerID 62 INNER JOIN DeviationTypes ddt ON dh.DriverDeviationTypeID = ddt.DeviationTypeID 63 INNER JOIN 64 ( 65 SELECT 66 DocumentHistoryID 67 ,(COALESCE(SUM((CONVERT(INT, Units + DeviationUnits)) * (UnitPrice - UnitDiscount)) + SUM((CONVERT(INT, Cases + DeviationCases)) * (CasePrice - CaseDiscount)), 0.0)) AS Amount 68 FROM 69 DocumentHistoryItems dhia 70 GROUP BY 71 dhia.DocumentHistoryID 72 ) AS a ON a.DocumentHistoryID = dh.DocumentHistoryID 73 LEFT OUTER JOIN 74 ( 75 SELECT DISTINCT 76 dca.DocumentID 77 ,1 AS 'HasReceipt' 78 FROM 79 DocumentCollections dca 80 ) AS dc ON dh.DocumentID = dc.DocumentID 81 WHERE 82 dh.DocDate BETWEEN @StartDate AND @EndDate 83 AND (dh.DocumentTypeID = @DocumentTypeID OR @DocumentTypeID IS NULL) 84 AND (dh.RouteID = @RouteID OR @RouteID IS NULL) 85 AND (dh.CustomerID = @CustomerID OR @CustomerID IS NULL) 86 AND dh.DocumentID LIKE @DocumentIDPrefix 87 AND CASE WHEN @OversoldOnly = 1 THEN ISNULL( (SELECT TOP 1 (dhio.DeviationUnits + dhio.DeviationCases) FROM DocumentHistoryItems dhio WHERE dh.DocumentHistoryID = dhio.DocumentHistoryID AND (dhio.DeviationUnits > 0 OR dhio.DeviationCases > 0)), 0) ELSE 1 END > 0 88 AND CASE WHEN @DexCustomersOnly = 1 THEN c.DEXEnable ELSE 'Y' END = 'Y' 89 AND CASE WHEN @DeviationsOnly = 1 THEN ISNULL((SELECT TOP 1 (dhio.DeviationUnits + dhio.DeviationCases) FROM DocumentHistoryItems dhio WHERE dh.DocumentHistoryID = dhio.DocumentHistoryID AND (dhio.DeviationUnits != 0 OR dhio.DeviationCases != 0)), 0) ELSE 1 END != 0 90 AND CASE WHEN @CashNoPaymentOnly = 1 THEN dh.Terms ELSE 'CHECK/CASH' END = 'CHECK/CASH' 91 AND CASE WHEN @CashNoPaymentOnly = 1 THEN (SELECT MAX(dhio.AlcoholPct) FROM DocumentHistoryItems dhio WHERE dhio.DocumentHistoryID = dh.DocumentHistoryID) ELSE 1 END > 0 92 AND CASE WHEN @CashNoPaymentOnly = 1 THEN ISNULL(dc.HasReceipt, 0) ELSE 0 END = 0 93 AND (dh.SigName = @SignatureName OR @SignatureName IS NULL) 94 AND (c.WarehouseID IN (SELECT WarehouseID FROM WebUserWarehouses WHERE WebUserID = @WebUserID) 95 OR @WebUserID IS NULL) 96 ) 97 SELECT 98 DocumentHistoryID 99 ,DocumentID 100 ,DocumentTypeDesc 101 ,RouteID 102 ,RouteDesc 103 ,CustomerID 104 ,CustomerName 105 ,DocDate 106 ,Amount 107 ,HasReceipt 108 ,SignatureReason 109 FROM 110 OrderedDocumentHistory 111 WHERE 112 RowNumber BETWEEN (@StartRowIndex + 1) AND (@StartRowIndex + @MaximumRows)
Here is the code for calling the stored procedure:1 DECLARE @RC int 2 DECLARE @WebUserID nvarchar(20) 3 DECLARE @DocumentTypeID int 4 DECLARE @RouteID nvarchar(10) 5 DECLARE @CustomerID nvarchar(15) 6 DECLARE @DocumentIDPrefix nvarchar(20) 7 DECLARE @StartDate datetime 8 DECLARE @EndDate datetime 9 DECLARE @OversoldOnly bit 10 DECLARE @DexCustomersOnly bit 11 DECLARE @DeviationsOnly bit 12 DECLARE @CashNoPaymentOnly bit 13 DECLARE @SignatureName nvarchar(45) 14 DECLARE @SortExpression varchar(200) 15 DECLARE @StartRowIndex int 16 DECLARE @MaximumRows int 17 18 SET @WebUserID = 'manager' 19 SET @DocumentTypeID = 0 20 SET @DocumentIDPrefix = '%' 21 SET @StartDate = '04/17/2007' 22 SET @EndDate = '04/19/2007' 23 SET @OversoldOnly = 0 24 SET @DexCustomersOnly = 0 25 SET @DeviationsOnly = 0 26 SET @CashNoPaymentOnly = 0 27 SET @SortExpression = '' 28 SET @StartRowIndex = 0 29 SET @MaximumRows = 20; 30 31 EXECUTE @RC = [Odom].[dbo].[w_DocumentHistory_Select] 32 @WebUserID 33 ,@DocumentTypeID 34 ,@RouteID 35 ,@CustomerID 36 ,@DocumentIDPrefix 37 ,@StartDate 38 ,@EndDate 39 ,@OversoldOnly 40 ,@DexCustomersOnly 41 ,@DeviationsOnly 42 ,@CashNoPaymentOnly 43 ,@SignatureName 44 ,@SortExpression 45 ,@StartRowIndex 46 ,@MaximumRows
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[table_Data]') AND type in (N'U')) DROP TABLE [dbo].[table_Data] GO /****** Object: Table [dbo].[table_Data] Script Date: 04/21/2015 22:07:49 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[table_Data]') AND type in (N'U'))
I have a job where the first step starts and checks for a condition. If its not true, I want it to reset itself and start again in 10 minutes. I'm using sp_stop_job and sp_update_jobschedule and, initially, it looks like it works. But since it's a Daily job, the 'Next Run Date' increments to the following day. Even though I'm using sp_update_jobschedule to keep the active_start_date as the same day, it still increments. I've tried updating sysjobschedules directly, but get the same results.
Any thoughts much appreciated! Here's my code: USE msdb
--This is the part that goes in the job step --and increments the next_run_time if the condition is true.
If (Select count('x') from mytable (NoLock) Where PublicationDate > getdate()) < 1 BEGIN Declare @ActiveStartDate int Declare @ActiveStartTime int
Select @ActiveStartDate = active_start_date from msdb.dbo.sysjobschedules (NoLock) Where schedule_id = 61 Select @ActiveStartTime = active_start_time from msdb.dbo.sysjobschedules (NoLock) Where schedule_id = 61
I am trying to develop a sql statement that will create a recordset of the min (or max) values in x minute increments over a period of time.
e.g. over a period of 7 days, I have data that was collected in 1 minute intervals. I need to know the min (or max) value in each 10 minute interval over that same period of time.
hey all, i need to find the ratio of difference in 2 datetime variables and the difference of another 2 datetime vars. I figured the best way to do it is to convert the difference in both numerator and denominator to number of minutes.
I am runing from .NET application an SQL Query it normally return the rows in 10 seconds but time to time the application turn 2 or 3 minutes and nearlly crash (or crash)
I have a result that comes out in number of seconds, but need to see it converted to minutes and hours and seconds. Is there a convert function that would do this?
Consider a table that holds Internet browsing history for users/machines,date/timed to the minute. The object is to tag all times that are separatedby previous and subsequent times by x number of minutes or less (it couldvary, and wouldn't necessarily be a convenient round number). This willenable reporting "active time" for users (a dubious inference, but hey).There are a lot of derivative ways of seeing this information that might begood to get to. What's the fist and last of these sets of times? Whatpercentage of a given period is spanned by active times, and not? What isthe average duration of such periods? What is the average interval betweenweb hits during such periods? During other times?Blah, blah. The basic problem is my principal problem. I don't have muchexperience with cursors, but from what I understand it would be very goodindeed to spare them, given the number of records I anticipate workingwith.I'd be glad of any pointers.--Scott
Hi, the SQL DB freezes and no one can access the DB for 5 or 10 minutes. Even select queries don t execute, nothing is displayed.
Until we kill the process id that s blocking in the sql activity monitor, only then the DB is released and people can work again. What does it mean that no query executes until we kill the processes ID? what could it be?
Also, recently we created indexes and ran tuning adviser, is it possible that the creation of indexes cause the freeze of a DB? is that possible?
I have SQL 2005 full version installed a remote server and when I start my computer I can connect to the database from SQL Managment Studio and a program I'm making. After about 15 minutes I find that I cannot connect using both programs, but if I enter the servers IP address using Managment Studio I can connect (this does not happen with the program I'm making). I have to log of my computer before I can connect again.
I want to create a Trigger that will run every 5 minutes. This trigger would actually run a Stored Procedure named say "SP_SetRooms". This SP will in turn run and andupdate the rooms table. Would anyone know how to help me get started on creating a Trigger with the info I've provided? Thank you, Dharmendra parihar
I've the following simple code bound to a button on a Web page
string time = (string)Cache["KEY"]; if (time == null) {
SqlConnection sqlConnection = new SqlConnection(@"Server=BIZYUSUFSQL2005;Database=Deneme;User Id=sa;Password=;"); SqlCommand command = new SqlCommand(@"select KOLON1 from dbo.CACHE", sqlConnection); sqlConnection.Open();
SqlCacheDependency dependency = new SqlCacheDependency(command); time = System.DateTime.Now.ToString(); Cache.Insert("KEY", time, dependency); command.ExecuteNonQuery(); sqlConnection.Close(); } return time; This code has to return the time value from cache. And when a record is inserted into the CACHE table, the cache item has to be invalidated and the new time value has to be returned. The code works properly for 2-3 minutes. But when there is no activity for 5 minutes, the cache invalidation does not work anymore.
The company I work for has no experience with replication, and neither have I. Now I recieved a functional specifications document and apparently what they want is use replication to maintain a copy of a production database on the data warehouse server. The database is 70GB, and they want to do it every 15 minutes (so their reports will contain up-to-date data).
As I said, I know nothing about replication, but to me, this sounds like madness. I fear that this will will (at least) have a negative impact on the performance of the production database.
So is it possible? Does replication have a big impact on the database or is it hardly noticable? I expect about 500 new records every 15 minutes; production database and data warehouse are on different servers; both are SQL2005.
I have two field and I need to find the sum I guess of them. One is called the clm_dout (process date) and the other one is clm_rcvd (received Date). These are both date and time fields and it looks like this 2006-03-17 00:00:00.000. I need to create a formula that wiil i guess give me the difference and create it into hour and minutes because I an trying to create a turn around report. this is what I had...
TimeValue({clm_doubt}-{clm_rcvd})
This is not working for me. Can someone give me a suggestion please.
Hi Can anyone help me convert a number to give the result in hours and minutes? For example 195 as 3:15 or 210 as 3:30. We are trying to create a report showing hours and minutes worked without having to export to Excel.
I've had a look around the net and this seems to be quite a difficult function in SQL Server.