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I work on sql server 2017 i have table have dense rank over FeatureString and column store rank increment is technology id
as below

create table #partsfeature
  (
  PartId int,
  FeatureName varchar(300),
  FeatureValue varchar(300),
  FeatureString varchar(300),
  TechnologyId int
  )
   insert into #partsfeature(PartId,FeatureName,FeatureValue,FeatureString,TechnologyId)
   values
   (1211,'AC','5V','AC(5V)Boil(10v)Temp(5V)',1),
   (1211,'Boil','10v','AC(5V)Boil(10v)Temp(5V)',1),
   (1211,'Temp','5V','AC(5V)Boil(10v)Temp(5V)',1),
   (2421,'grail','51V','Alc(5V)Coil(9V)grail(51V)',2),
   (2421,'Coil','9V','Alc(5V)Coil(9V)grail(51V)',2),
   (2421,'Alc','5V','Alc(5V)Coil(9V)grail(51V)',2),
   (6211,'compress','33v','compress(33v)heat(90v)push(80v)',3),
   (6211,'heat','90v','compress(33v)heat(90v)push(80v)',3),
   (6211,'push','80v','compress(33v)heat(90v)push(80v)',3)


Now max technology id on table part feature is 3

I need New Inserted data will be 4,5 for technology id

New Inserted Data as below


(7791,'AC','5V','AC(5V)Boil(10v)Temp(52V)'),
  (7791,'Boil','10v','AC(5V)Boil(10v)Temp(52V)'),
  (7791,'Temp','52V','AC(5V)Boil(10v)Temp(52V)'),


  (8321,'Angit','50V','Angit(50V)Fan(9v)Hot(3V),Wether(12V)'),
  (8321,'Fan','9v','Angit(50V)Fan(9v)Hot(3V),Wether(12V)'),
  (8321,'Hot','3V','Angit(50V)Fan(9v)Hot(3V),Wether(12V)'),
  (8321,'Wether','12V','Angit(50V)Fan(9v)Hot(3V),Wether(12V)')


so how to make select query over Feature String for column Technology Id as 4,5 for New inserted Data

expected result i need is

PartId	FeatureName	FeatureValue	FeatureString	TechnologyId
7791	AC	5V	AC(5V)Boil(10v)Temp(52V)	4
7791	Boil	10v	AC(5V)Boil(10v)Temp(52V)	4
7791	Temp	52V	AC(5V)Boil(10v)Temp(52V)	4
8321	Angit	50V	Angit(50V)Fan(9v)Hot(3V),Wether(12V)	5
8321	Fan	9v	Angit(50V)Fan(9v)Hot(3V),Wether(12V)	5
8321	Hot	3V	Angit(50V)Fan(9v)Hot(3V),Wether(12V)	5
8321	Wether	12V	Angit(50V)Fan(9v)Hot(3V),Wether(12V)	5


What I have tried:

select *,DENSE_RANK() OVER (

ORDER BY FeatureString

) TechnologyId from #partsfeature
Posted
Updated 13-Jun-22 6:17am
Comments
Member 15627495 11-Jun-22 12:27pm     CRLF
you want to display the rows about "dense" before the 'select *' , and that in one query. use UNION . by UNION you can merge 2 queries to achieve the query you want.
SELECT fields... FROM table_ ...UNIONSELECT fields..2  FROM other table ...// you 'll get :row query 1row query 1row query 1row query 2row query 2row query 2row query 2row query 2row query 2
CHill60 13-Jun-22 12:08pm    
This makes no sense whatsoever, there is only one table in play so what is "other table" meant to be?

1 solution

Your Window clause is using the wrong column to get your desired results - you should be using PartID not FeatureString. You should also use a WHERE clause to ignore the TechnologyIds that are already set.
Try something like this
SQL
UPDATE a
set TechnologyId= b.TechnologyId
from #partsfeature a
INNER JOIN 
(
	SELECT PartID, DENSE_RANK() OVER (ORDER BY PartID) AS TechnologyId from #partsfeature
) b on a.PartId = b.PartId
where a.TechnologyId  is null
 
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