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.
Is there an efficient way of doing this?
My table as data as follow,
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'))
[code].....
Hi,
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
EXEC msdb.dbo.sp_stop_job @job_name = 'Owners'
Select @ActiveStartTime = @ActiveStartTime + 1000
EXEC sp_update_jobschedule @job_id = '46C074D4-908D-46AE-8B0C-A23E3AD4A4F6',
@name = 'Daily',
@active_start_date = @ActiveStartDate,
@active_start_time = @ActiveStartTime
End
Hi,
I need to write a query whioch give me count on
0-15 minutes and then from 0-720 minutes.
I don't know how to group it.
Any help appreciated.
TIA
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.
can anyone help ??
:shocked: hi,
I want to use CURRENT_TIMESTAMP - 5 minutes in a select and where clause.
I have tried using
CURRENT_TIMESTAMP - 0.004 AS [Time_-6]
But this is not a round off to a whole minute
Also tried
CURRENT_TIMESTAMP, dateadd(minute, datediff(minute, 0, CURRENT_TIMESTAMP) / 5 * 5, 0)
But this will not do wholes seconds e.g
CURRENT_TIMESTAMP = 10.03.33
CURRENT_TIMESTAMP, dateadd(minute, datediff(minute, 0, CURRENT_TIMESTAMP) / 5 * 5, 0) = 10.00.00
Can anyone help??
Hello all !
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)
with exactly the same datas in database
what can be the reasons ?
thank you
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?
Thanks,
Dan
how can i get my date minus 15 minutes in sql?
is there a dateadd function?
I have this script that runs on a LOGGING database and find hourly requests for a particular firm.
The date format is "2013-08-19 13:44:50.177"
How can I group it by every 15 mins?
select
LocalDate [date],
LocalHour [Hour],
count(*) [requests],
avg(web_request_duration) [avg response time],
min(web_request_duration) [min response time],
max(web_request_duration) [max response time]
[Code] ....
I am using below query to get the today date and time(2 hrs more than actual time)
select dateadd(HOUR, 2, getdate()) as time_added
the result of above query is "2014-10-28 13:19:09.343" but I want time up hours like shown below
"2014-10-28 13:00"
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
View 29 Replies View Related 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?
Thanks a lot for your help
Hi,
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.
Anyone having the same problem or how to fix it??
Thanks
PQSIK
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.
I want to fetch all the records which are 2 minutes older
How can I do it?
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 the following SQL select query:
Code:
SELECT
inbound_emails.inbound_email_id,
inbound_emails.campaign_id,
campaign_header.campaign_name,
customers.customer_name,
inbound_emails.date_received,
[Code] ....
Without any indexes (other than PK's) this query would take 1min 21 secs to return all 8500 records.
I wasn't satisfied with that so I added indexes to the tables.
Indexes are;
inbound_emails:
PK: inbound_email_id
1. campaign_id (non-unique, non-clustered)
2. email_from (non-unique, non-clustered)
3. email_to (non-unique, non-clustered)
campaign_header:
PK: campaign_id
1. campaign_name (unique, non-clustered)
customers:
PK: customer_id
1. customer_name (unique, non-clustered)
contracts:
PK: contract_id
1. contract_name (unique, non-clustered)
2. customer_id (non-unique, non-clustered)
Have I made a hash of the indexes? Or is the query statement badly written? What is a reasonable amount of time to expect to retrieve 8500 records?
I think email_from and email_to on inbound_emails is the main culprit, but I don't understand why?
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.
Thanks!
I need to convert 300.876 to 5:00.876 in classic asp. Can anyone help?
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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.
Any guidance much appreciated.
I have two date columns one is sent_date and other is approved_date
my requirment is to find the difference between the two dates
which can be minutes/hrs/days.
using datediff function iam able to get it in minusts or hrs but my
output should be of the format hh:mm
23:10 (ie 23 hrs and 10 min) or say
48:00 (for 2 days)
sample date
sent_date approved_date
2/28/06 11:06 2/28/06 11:39
2/2/06 17:42 2/2/06 18:03
2/8/06 16:55 2/8/06 17:38
1/27/06 17:00 1/27/06 17:54
1/26/06 12:08 1/26/06 12:09
2/28/06 15:46 2/28/06 16:26
1/23/06 10:01 1/23/06 10:43
1/26/06 13:46 1/26/06 13:59
1/13/06 13:51 1/13/06 14:47
Hi guys,
how to get the Hours and Minutes ago?
I have a column name "DateCreated" which is a DateTime type. I need to get the Hours and Minutes ago
Thank you.
Hi,I want to get the count of rows per each 20 minutes, is that possible?Is there a date function or any other function that I can use in Groupby clause, which will group the data of every 20 minutes and give methe count?Thank you.Vidya
View 3 Replies View Relatedhi,
I want to convert minutes to hours. for example field_minutes=130minutes to 2:10 hours...
select field_minutes from table---> how can I do?
please need help
i need to create view_circuit like this
for evry row add 15 minutes with condition by station field
Table before
start time@=14:30
ORDER BY 6,9,15
point_collection employee station seated
-----------------------------------------------------------------------------------
start time@=14:30 aaaa 6 station-6
xxxx 9 station-9
nnnnn 9 station-9
cccc 15 station-15
dddd 15 station-15
yyyy 15 station-15
...............................
.........................
Table After
point_collection employee station seated
-----------------------------------------------------------------------------------
14:30 aaaa 6 station-6
14:35 xxxx 9 station-9
14:35 nnnnn 9 station-9
14:40 cccc 15 station-9
14:40 dddd 15 station-9
14:40 yyyy 15 station-9
..................
...................
........
tnx for the help
Hello,
I have a question regarding whether or not Data Mining can be utilized in a specific problem I have to solve.
Situation: I€™m going to simplify the problem by explaining it in terms of a €œpizza manufacturer€?. Suppose I wanted to predict the run minutes + downtime minutes (I use these to get an hourly rate: Pizzas/(run hrs + delay hrs) = Pizzas per hour) by looking at a set of input properties.
My properties could be something like the following:
# of Toppings
# of Special Pricing Stickers
Cardboard Box Indicator
Case Indicator (0 represents auto-casing, 1 represents putting in case by hand)
Machine Type (0 or 1€¦ 0 represents an older €“slower machine, 1 is newer)
Quantity of Run
(there could be up to 15 other properties that may or may not impact our rate)
Measured Values:
Run Minutes
Delay (down) minutes
Steps I€™ve Done So Far:
I€™ve created a couple different data mining models for this as I was unsure which one(s) to use. I checked the lift chart while feeding back in the original data set and my scatter plot appeared fairly inaccurate.
I've attempted to use Excel to create a linear regression, however my r squared value was always around .30. I decided to try to use SQL Server Data Mining to see if it could be something to help predict our accuracy better than a linear formula.
I've played with a couple different algorithms in Data Mining, and it appeared that none of them did exceptionally well with prediction. I even checked the lift chart using the same table as I used to train the model.
What algorithm(s) might work the best?
Can I reasonably expect a prediction within a fairly strict tolerance (I'm guessing the answer to this is: "yes, if your source data represents a consistent pattern")?
How can I best utilize Data Mining to give an answer like "historically, your run rate has been between these 2 values with a probability of X". I'm thinking I can utilize the predictprobability and stdev to some extent.
Any suggestions would be greatly appreciated.
If anyone needs further clarification, please let me know.
Thank you.
Regards,
Dan
Does anyone know what would cause my log file (.LDF) to grow at a rate of over 1MB per second and quickly fill up the hard drive? I could use a quick answer on this. My experience is in Oracle but I'm assuming you can set the maximum size for a log file for starters? Not sure why it would be growing at this rate anyway though. I could use some quick answers on this one. Thanks!
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Hi everyone - I have an ETL package which loads about 10 million rows from SQL 2005 staging tables to new, empty tables (no indexes or constraints) in another SQL 2005 DB to be SWITCHED into the main partioned data tables.
Both databases reside on the same SQL Server instance - it is a dev server so the disk aren't super fast/SAN speeds but it has plenty of RAM/CPU & SCSI disks.
The insert takes about 45 minutes - can I get this working any faster?? or is this typical for 10 million rows?? I've messed about withe the data flow a few times but I can't seem to get any significant improvements.
Any tips anyone??
I perform several lookups on dimensions - these are not cached.
I do query the source table concurrently with different WHERE clauses & run two pipelines processing the data into 2 destination tables.
Would it be better to query the base table once & use a conditional split instead of the two separate queries??
I also mulicast from each pipeline & use a UNION ALL to log some of the rows from each pipeline to anther destination table.
Hope this makes sense?? Any ideas or tips on how I can speed up this kinda transform would be appeciated..
I'm using oleDB connections.
Hope ths makes some kinda sense!! Thanks for any advice!!
Sinister Pengiun
I have a field in nvarchar type. It contains data like 0, :23, 1:57, ... all in minutes and seconds. Now, I need to convert it to MM:SS using query and get the Average of this column. How can I do it? I have tried Avg(Convert(nvarchar(20), [Calling Time], 108)) .. but I got error : The average aggregate operation cannot take a nvarchar data type as an argument.Help!!!! :(
View 1 Replies View RelatedI have a column in a table that stores the number of hours a task took to do. The column TaskDuration is a datetime datatype. I need to convert the hours to something that can be summed. Does anyone how this can be done? I tried CONVERT(nvarchar(5), tblTasks.TaskDuration, 108) but of course the nvarchar(5) cannot be summed. Maybe there is a way to convert the time portion to minutes and divide it by 60, anyway if someone can offer some help I appreciate it.
View 5 Replies View RelatedI have a field with seconds in it and I need to disply it in hours which I can do by dividing it by 3600, but I am trying to figure out how to round it up to the nearest 15 minutes. I have tried a couple of things with ROUND and CEILING, but am not getting the right numbers back. Any help would be greatly appreciated.
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