Get row number result in correct order?

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I have a query to get JobRanking based on yearleftpost to get latest job followed by previous jobs worked.

select
    c.id,
    c.Fname,
    cfe.JobYear,
    cfe.YearLeftPost,
    cfe.Iscurrentjob,                                         
    ROW_NUMBER() OVER (Partition by c.id ORDER BY Iscurrentjob DESC, yearleftpost DESC) AS JobRanking
from
candidates c
left join Candidate_FunctionalExperience cfe on c.id = cfe.CandidateID

It gives me the result:

id  Fname    JobYear  YearLeftPost  Iscurrentjob JobRanking
EC2 sdsadsa  1430     1433              1           1
EC2 sdsadsa  1429     1430              0           2
EC2 sdsadsa  1424     1428              0           3
EC2 sdsadsa  1428     1428              0           4
EC2 sdsadsa  1424     1426              0           5

Now, I have a IscurrentJob (Boolean value) 0 or 1, I am not getting the correct order of JobRanking.

If you want Iscurrenjjob=1 rows to be first in the rankings then add that to your ordering clause:

Partition by c.id ORDER BY Iscurrentjob DESC, yearleftpost DESC

Overview of the SQL ROW_NUMBER function, ROW_NUMBER adds a unique incrementing number to the results grid. The order, in which the row numbers are applied, is determined by the and it always starts off at 1 and subsequent rows get the next higher value. SELECT seller_name, ROW_NUMBER() OVER (ORDER BY units_sold desc) units_ranking, ROW_NUMBER() OVER (ORDER BY revenue desc) revenue_ranking, ROW_NUMBER() OVER (ORDER BY profit desc) profit_ranking FROM sellers; The next image shows the results of the previous query with the ROW_NUMBER() function. Initially, the ranking values seem to be correct.

With conditional sorting:

ROW_NUMBER() OVER (
  Partition by c.id 
  ORDER BY CASE WHEN cfe.Iscurrentjob = 1 THEN 0 ELSE 1 END, yearleftpost DESC
) AS JobRanking

SQL Server ROW_NUMBER() Function Explained By Practical , The row number starts with 1 for the first row in each partition. The ORDER BY clause defines the logical order of the rows within each partition of the result set. If you skip it, the ROW_NUMBER() function will treat the whole result set as a single partition. ORDER BY. The ORDER BY clause defines the logical order of the rows within each partition of the result set. The ORDER BY clause is mandatory because the ROW_NUMBER() function is order sensitive.

This should do the job.

 select
    c.id,
    c.Fname,
    cfe.JobYear,
    cfe.YearLeftPost,
    cfe.Iscurrentjob,                                         
    ROW_NUMBER() OVER (order by c.id) AS JobRanking
 from
 candidates c
 left join Candidate_FunctionalExperience cfe on c.id = cfe.CandidateID
 ORDER BY cfe.Iscurrentjob desc, cfe.YearLeftPost desc

Row numbers with nondeterministic order, Examples include assigning unique values to result rows, deduplicating data, repeated executions to keep changing which rows get assigned with which row numbers. I'll start with cases where the row number ordering does matter. next post The Importance of Selecting the Proper Azure VM Size. Summary: in this tutorial, you will learn how to use the ROW_NUMBER() to assign a sequential number to each row in a query result set.. SQL ROW_NUMBER() Function Overview. The ROW_NUMBER() is a window function that assigns a sequential integer number to each row in the query’s result set.

Row_Number in SQL Server, Different values are assigned to different rows, based on the type of ranking For example, if we specify Order By EmployeeID desc, it will result in without skipping any number in the result set, whether it is partitioned or not. Embed analytics and dashboards right inside your app with a JS SDK. The function ‘ROW_NUMBER’ must have an OVER clause with ORDER BY. But there is a way. Just do not ORDER BY any columns, but ORDER BY a literal value as shown below. SELECT *,ROW_NUMBER() OVER (ORDER BY (SELECT 100)) AS SNO FROM #TEST The result is

ROW_NUMBER window function, Determines the row number of the current row within a group of rows, based on the ORDER BY expression in the OVER clause. To add a row number column in front of each row, add a column with the ROW_NUMBER function, in this case named Row#. You must move the ORDER BY clause up to the OVER clause. SELECT ROW_NUMBER() OVER(ORDER BY name ASC) AS Row#, name, recovery_model_desc FROM sys.databases WHERE database_id < 5; Here is the result set.

Then, the ORDER BY clause sorted the products in each category by list prices in descending order. Next, the ROW_NUMBER() function is applied to each row in a specific category id. It re-initialized the row number for each category. After that, the outer query selected the rows with row number 1 which is the most expensive product in each category.

Comments
  • Edit the question add full sample output, as your SELECT statement has 6 columns but you display only 4 columns.
  • Reasons not to use images are here.
  • This gives me 2 JobRanking = 1 in the same result set.
  • @RKKK for the same id? You should have distinct ranks for each id based on the partition.
  • Thanks Stanley :) ,This works fine now I tried with both scenarios when there is no current job and with a current job value,
  • select c.id, c.Fname, cfe.JobYear, cfe.YearLeftPost, cfe.Iscurrentjob, ROW_NUMBER() OVER (Partition by c.id ORDER BY Iscurrentjob DESC, yearleftpost DESC) AS JobRanking from candidates c left join Candidate_FunctionalExperience cfe on c.id = cfe.CandidateID
  • This works but not in the scenario when the yearleftpost is same. This is possible when a job is only for few months but we don't have any month/day field for calculation
  • Edited the question but the ranking is still wrong when the date of Yearleftpost are same
  • Post sample data and expected results for each scenario to clarify.
  • Edited the question but the ranking is still wrong when the date of Yearleftpost are same
  • Hi @RKKK please show us how do you want it to be ? Thanks!
  • I have updated my answer ... but on blind, without info I asked. Please try it and comment what you would like for order by to be ? Thanks!