T-SQL (SS2K8) :: Percentile With NTILE(100) For Less Than 100 Observations - How To Display On 100 Scale
Sep 15, 2015
I have process and people want to know percentile rank (on scale of 100), I'm bit lost as I have cases when I have let say 5 observations, so if use code below I can not got above number of observations:
Is there any way to get that numbers like RankWanted ??
; WITH cte AS (
SELECT 100 Cust_ID , 0.338129 Perc, 20 RankWanted union
SELECT 300 Cust_ID , 0.487179 Perc, 40 RankWanted union
SELECT 300 Cust_ID, 0.500000 Perc, 60 RankWanted union
SELECT 400 Cust_ID, 0.541666 Perc, 80 RankWanted union
SELECT 500 Cust_ID, 0.548780 Perc, 100 RankWanted )
SELECT Cust_ID, Perc,
I'm looking to identify the people who visited an office more than once and the dates that they visited. For example I have a table that looks like the following:
I have an issue while display the result in the required order. How to get the required output.
Code :
USE tempdb GO
IF OBJECT_ID('tempdb..#VersionFormat_tbl') IS NOT NULL DROP TABLE #VersionFormat_tbl CREATE TABLE #VersionFormat_tbl ( [FormatID] [smallint] NOT NULL, [Description] [varchar](50) NULL,
[Code] ....
Present output : fileExtension FormatID Description fileExtension versionFormatTypeId txt 1 Text txt 1 html 2 HTML html 1 xml 3 XML xml 1 pdf 4 PDF pdf 1 xls 5 Excel xls 1 doc 6 Word doc 1
I have a table with a column AttributeNumber and a column AttributeValue. The data is like this:
OrderNo. AttributeNumber AttributeValue 1.-Order_1 2001 A 2.-Order_1 2002 B 3.-Order_1 2003 C 4.-Order_2 2001 A 5.-Order_2 2002 B 6.-Order_2 2003 C
So the logic is as follows:
I need to display in my query the values are coming from Order_1, means AttributreValues coming from AttibuteNumbers: 2001,2002,2003...and Order_2 the same thing.
Not sure how to create my Select here since the values are in the same table
i m creating one google map application using asp.net with c# i had done also now that marker ll be shown from database (lat,long)depends on the lat,long i wanna display customer,sales,total sales for each makers in html table format.
We have accounts that pay for a particular "premium" service. It's entirely possible an account paid for this service for three consecutive months in 2013, then stopped paying, then started paying again. Why I'm trying to establish is, for the FIRST period of time the accout paid for this service, for how many consecutive months did they pay? Here is my test data:
if object_id('tempdb..#SampleData') is not null drop table #SampleData go if object_id('tempdb..#DateAnalysis') is not null drop table #DateAnalysis go
-- Use lead function to determine how many months are between
-- consecutive dates per account
; with DateInterval as (select AccountID, RandomDate, NextDate = lead (RandomDate, 1, NULL) over (partition by AccountID order by RandomDate) from #SampleData) insert into #DateAnalysis select AccountID, RandomDate, NextDate, datediff(mm, RandomDate, NextDate) as 'Lead' from DateInterval
where NextDate is not null -- Last row will contain NULL for NextDate. Don't include these rows.
-- Show the results
select *, 'NTile' = NTILE(3) over (partition by AccountID order by RandomDate), 'RowNum' = row_number() over (partition by AccountID order by RandomDate) from #DateAnalysis
Results (this is not getting me what I'm looking for):
The problem comes with accounts like AccountID = 1. They paid consecutively to start, then skipped, then started paying consecutively again. When using window functions, I'm running into trouble attempting to partition by AccountID and LeadInMonths. It's putting all the LeadInMonths = 1 together and that will give me skewed results if I want to know the earliest and latest date within the FIRST consecutive range of dates where the account paid. I've tried NTILE but it expects an integer and there's no telling how many "tiles" would be in AccountID partition.
I've looked at the OVER clause and the new "ROWS BETWEEN" syntax and still cannot get the desired results.
I am in middle of my transformation where I have to assign records equally among 3 different groups. I can do that in SQL using NTILE() Over() function. How do I do that in SSIS package. I have applied different business rules during transformation to get unique records and now I have to assign those records to 3 group in and generate excel report.Basically, I will need to have another column which will have those group numbers.
(set -> The set from which to get a tuple value. numeric_value_expr -> A numeric value or an expression that returns a numeric value. percentile -> A percentile. Must be between 0 and 100. )
Hi, l would like to calculate 80% and 95% percentile of a column from my table in SQL server 2005. Does SQL server 2005 provides such built-in function, if not, how should l do? Any suggestion? (Suggest to MS : Please include percentile as a built-in function on the next services pack). Thanks and happy labor day!
Does anyone know how to do an expression that calculate percentrank and percentiles? I have a table with a list of transactions and their response time. I need to find the 75th, 90th, 95th, and 98th percentile as well as the percentrank of <=5 seconds, 10 seconds, 30 seconds and 60 seconds.
I'm trying to create a calculated field that gives me the avg 75 percentile.
Right now I get this value by doing the following:
Create data set:
Select top 75 percent <field>
from <table>
Then I create the following calculated field
Avg(Fields!<field>.value,"<data_set_name>")
But I wanted to be able to create a calculated field that gives me the avg 75 percentile without creating a separate data set to get the top 75 percent Value.
I am stumped on a set-based approach for this one.
A cursor approach is straightforward enough, but i want to avoid that.
Here's my table:
create table StudentScores ( id int primary key identity(1,1), student_id int not null, score int not null )
with some sample data:
insert into StudentScores (student_id, score) select 1, 10 union all select 1, 29 union all select 1, 50 union all select 1, 53 union all select 1, 45 union all select 1, 10 union all select 1, 29 union all select 1, 50 union all select 1, 53 union all select 1, 45 union all select 1, 88 union all select 2, 23 union all select 2, 54 union all select 2, 55 union all select 2, 34 union all select 2, 56 union all select 2, 78 union all select 2, 23 union all select 2, 54 union all select 2, 55 union all select 2, 34 union all select 2, 56 union all select 2, 78 union all select 2, 23 union all select 2, 54 union all select 2, 55 union all select 2, 34 union all select 2, 56 union all select 2, 78 union all select 2, 98
What I want is, for each student, what is their 90th percentile score?
For a given single student, one possibility would be:
declare @studentid int set @studentid = 2 select top 1 @studentid as student_id, a.score as [90th percentile score] from ( select top 90 percent score from StudentScores where student_id = @studentid order by score asc ) as a order by a.score desc
But I want this for all students, and not use a cursor.
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 am writing some scripts to calculate mean (avg) stdevs count and percentile_cont for some data..I am partitioning over multiple columns e.g. partition by year,month, day order by value..I performing unnecessary overhead as I throw away all but the last (or max) value in each window. (I use cte then select max from cte).That is I only care about the avg of the window in its entirety not specific subwindows.
I have 2 identical tables one contains current settings, the other contains all historical settings.I could create a union view to display the current values from table A and all historical values from table B, butthat would also require a Variable to hold the tblid for both select statements.
Q. Can this be done with one joined or conditional select statement?
DECLARE @tblid int = 501 SELECT 1,2,3,4,'CurrentSetting' FROM TableA ta WHERE tblid = @tblid UNION SELECT 1,2,3,4,'PreviosSetting' FROM Tableb tb WHERE tblid = @tblid
I have been trying to develop an automatic way of programmatically accessing datasources and performing some predefined(-supported) processing on them.
The question I would like to ask you people has to do with numeric fields. What exactly is precision? Is it the maximum length in digits of a field, or is there more to it? What about a "field's scale", what is it and how does it affect a field's value handling?
Can you have different scales on a bar chart. I want to chart sales and quantity. Oracle lets you label the top of the bar chart as money and the bottom as quantity.
I am dividing my sales by one million and quantity by one thousand to make them similar in size on the same chart. I am using the sum of the sales/1000000 as a point label. Is there any way to limit the number of decimal places displayed. Currently it is displaying something like 1.94889312043; 1.95M would be better.
I have set the output columns to decimal and data scale of 2. And have also set the field to be 0.00, and in the csv desination file it always puts .000000, How can I get it to be 0.00?
