/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 vote300 views1 answer
Group by sql not ordering issues
SQL
1 vote352 views1 answer
How to set up a trigger in sql
SQL
11 votes301 views2 answers
Having in sql
SQL
1 vote302 views1 answer
Sql avg group by
SQL
1 vote304 views1 answer
Mysql change root mysql_native_password
SQL
2 votes284 views1 answer
Username sql
SQL
19 votes313 views5 answers
Date between in mysql
SQL
0 vote309 views1 answer
Mysql date format unix timestamp
SQL
0 vote309 views1 answer
Oracle shrink table
SQL
0 vote296 views1 answer
N file included from src/buffer.cpp:12: src/pyodbc.h:56:10: fatal error: 'sql.h' file not found #include <sql.h>
SQL