/SQL/Remove duplicate old value in mysql

Remove duplicate old value in mysql

Mysql remove duplicates

DELETE c1 FROM tablename c1
INNER JOIN tablename c2 
WHERE
    c1.id > c2.id AND 
    c1.unique_field = c2.unique_field;

Identify rows with 2 same column value and delete duplicate mysql

DELETE c1 FROM contacts c1
INNER JOIN contacts c2 
WHERE
    c1.id > c2.id AND 
    c1.email = c2.email;
Code language: SQL (Structured Query Language) (sql)

Source: mysqltutorial.org

Delete all duplicate rows keep the latest except for one in mysql

DELETE 
FROM
  `tbl_job_title` 
WHERE id NOT IN 
  (SELECT 
    * 
  FROM
    (SELECT 
      MAX(id) 
    FROM
      `tbl_job_title` 
    GROUP BY NAME) tbl)

Source: stackoverflow.com

Remove duplicate old value in mysql

DELETE `yellow_page_content`
   from `yellow_page_content`
  inner join (
     select max(`id`) as lastId, `code`
       from `yellow_page_content`
      group by `code`
     having count(*) > 1) duplic on duplic.code = yellow_page_content.code
  where yellow_page_content.id < duplic.lastId;

Similar codes

0 vote114 views2 answers
Avg() sql
SQL
5 votes148 views1 answer
Sort order on two columns sql
SQL
0 vote149 views1 answer
Linked server delete openquery
SQL
0 vote141 views1 answer
How to use sqlcommand
SQL
0 vote143 views1 answer
How to check xampp mysql password
SQL
10 votes149 views2 answers
Show tables in schema oracle
SQL
1 vote161 views1 answer
Oracle sequence last_number
SQL
18 votes145 views4 answers
Uninstall mysql on ubuntu
SQL
1 vote133 views1 answer
MYSQL HOT TO COUNT THE DURATION BETWEEN TWO DATES
SQL
1 vote133 views1 answer
Oracle truncate partition
SQL