remove duplicate words of string using sql

Rubelia answered on April 11, 2022 Popularity 6/10 Helpfulness 1/10

answer remove duplicate words of string using sql

related sql remove duplicates

related SQL remove duplicate

remove duplicate words of string using sql

Comment

declare @text varchar(max) = 'BLACKHEATH 0AA BLACKHEATH COLCHESTER CO2 0AA'
declare @i int = 1;
declare @nextCharacter varchar(max)
declare @word varchar(max)=''

declare @lastChar varchar(1) = substring(@text,len(@text),1)
--select @lastChar

declare @lastIndex varchar(max) = charindex(@lastChar,@text,len(@text))
select @lastIndex
--select len(@text)

create table #tmp (id int,word varchar(max))

while (@i <= len(@text))
begin

    select @nextCharacter= substring(@text, @i, 1)
    --select @nextCharacter,@i, @lastChar, len(@text)

    if (@nextCharacter !=' ')
        begin       
            select @word = @word + @nextCharacter
        end

     else
        begin
            insert into #tmp
            values(@i,@word)
            set @word=''
        end
         if (@i = len(@text) and @nextCharacter= @lastChar)
        begin
        insert into #tmp
            values(@i,@word)                    
        end

    set @i = @i +1

end;

select id,word from #tmp order by id;

WITH tblTemp as
(
SELECT ROW_NUMBER() Over(PARTITION BY word ORDER BY id)
   As RowNumber,* FROM #tmp
) --select * from tblTemp
select * into #tmp2 FROM tblTemp where RowNumber =1 

declare @newString varchar(max)=''
select @newString = @newString +word+' ' from #tmp2 order by id 

select rtrim(@newString)

drop table #tmp2
drop table #tmp

Popularity 6/10 Helpfulness 1/10 Language sql

Source: stackoverflow.com

Tags: sql using words

Link to this answer
Share Copy Link

Contributed on May 07 2023

Rubelia

0 Answers Avg Quality 2/10

Closely Related Answers

sql remove duplicates

Comment

WITH cte AS (
    SELECT 
        contact_id, 
        first_name, 
        last_name, 
        email, 
        ROW_NUMBER() OVER (
            PARTITION BY 
                first_name, 
                last_name, 
                email
            ORDER BY 
                first_name, 
                last_name, 
                email
        ) row_num
     FROM 
        sales.contacts
)
DELETE FROM cte
WHERE row_num > 1;
/*
Code language: SQL (Structured Query Language) (sql)

In this statement:

First, the CTE uses the ROW_NUMBER() function to find the duplicate rows 
specified by values in the first_name, last_name, and email columns.

Then, the DELETE statement deletes all the duplicate rows but keeps only one 
occurrence of each duplicate group.*/

Popularity 10/10 Helpfulness 4/10 Language sql

Source: www.sqlservertutorial.net

Tags: sql

Link to this answer
Share Copy Link

Contributed on May 24 2022

Lucas Gomes

0 Answers Avg Quality 2/10

SQL remove duplicate

Comment

DELETE FROM [SampleDB].[dbo].[Employee]
    WHERE ID NOT IN
    (
        SELECT MAX(ID) AS MaxRecordID
        FROM [SampleDB].[dbo].[Employee]
        GROUP BY [FirstName], 
                 [LastName], 
                 [Country]
    );

Popularity 10/10 Helpfulness 4/10 Language sql

Source: www.sqlshack.com

Tags: sql

Link to this answer
Share Copy Link

Contributed on Apr 11 2022

WilsonWW

0 Answers Avg Quality 2/10

remove duplicate words of string using sql

Contents

More Related Answers

remove duplicate words of string using sql

Closely Related Answers

sql remove duplicates

SQL remove duplicate

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.