Breaking News: Grepper is joining You.com. Read the official announcement!

mysql find duplicates in same table

Add Answer

Yoshkinawa answered on April 20, 2020 Popularity 10/10 Helpfulness 4/10

answer mysql find duplicates in same table

related find duplicates mysql column

related finding duplicate rows mysql

related find duplicate keys in mysql

related myql find duplicates

related select where duplicate mysql

related how to duplicate mysql table

related mysql find duplicate rows multiple columns

related MySQL repeated values

related finding duplicate rows mysql

mysql find duplicates in same table

Comment

## Find ALL duplicate recods by value (without grouping them by value) ##
# to find the duplicate, 
# replace all instances of tableName with your table name
# and all instances of duplicateField with the field name where you look for duplicates
SELECT t1.*
FROM tableName AS t1
INNER JOIN(
	SELECT duplicateField
	FROM tableName
	GROUP BY duplicateField
	HAVING COUNT(duplicateField) > 1
)temp ON t1.duplicateField = temp.duplicateField
order by duplicateField

Popularity 10/10 Helpfulness 4/10 Language sql

Source: Grepper

Tags: find mysql sql

Link to this answer
Share Copy Link

Contributed on Dec 22 2020

Yoshkinawa

0 Answers Avg Quality 2/10

Closely Related Answers

find duplicates mysql column

Comment

SELECT name, COUNT(*) c FROM table GROUP BY name HAVING c > 1;

Popularity 10/10 Helpfulness 10/10 Language sql

Source: stackoverflow.com

Tags: find

Link to this answer
Share Copy Link

Contributed on Apr 20 2020

Enthusiastic Elephant

0 Answers Avg Quality 2/10

finding duplicate rows mysql

Comment

SELECT varchar_col
FROM table
GROUP BY varchar_col
HAVING COUNT(*) > 1;

Popularity 10/10 Helpfulness 7/10 Language sql

Source: stackoverflow.com

Tags: mysql mysq

Link to this answer
Share Copy Link

Contributed on Oct 20 2021

Itchy Iguana

0 Answers Avg Quality 2/10

find duplicate keys in mysql

Comment

SELECT col, COUNT(col) FROM table_name GROUP BY col HAVING COUNT(col) > 1;

Popularity 10/10 Helpfulness 5/10 Language sql

Source: Grepper

Tags: find

Link to this answer
Share Copy Link

Contributed on Sep 22 2020

alequenildo

0 Answers Avg Quality 2/10

myql find duplicates

Comment

SELECT 
    col, 
    COUNT(col)
FROM
    table_name
GROUP BY col
HAVING COUNT(col) > 1;
Code language: SQL (Structured Query Language) (sql)

Popularity 9/10 Helpfulness 5/10 Language sql

Source: www.mysqltutorial.org

Tags: find

Link to this answer
Share Copy Link

Contributed on Aug 18 2021

Testy Teira

0 Answers Avg Quality 2/10

select where duplicate mysql

Comment

SELECT 
    col1, COUNT(col1),
    col2, COUNT(col2)
FROM
    table_name
GROUP BY 
    col1, 
    col2
HAVING 
       (COUNT(col1) > 1) AND 
       (COUNT(col2) > 1);

Popularity 10/10 Helpfulness 5/10 Language sql

Source: www.mysqltutorial.org

Tags: mysql mysq

Link to this answer
Share Copy Link

Contributed on May 26 2020

Xanthous Xenomorph

0 Answers Avg Quality 2/10

how to duplicate mysql table

Comment

-- You can duplicate or "clone" a table's contents by executing
> CREATE TABLE new_table AS SELECT * FROM original_table;

-- keep in mind that new new_table inherits ONLY the basic column definitions, null settings
-- and default values of the original_table. It does not inherit indexes and auto_increment
-- definitions.
-------------------------------------------------------------------------------------------

-- To inherit all table definitions
> CREATE TABLE new_table LIKE original_table; -- copy table structure only
> INSERT INTO new_table SELECT * FROM original_table; -- add data from old table

Popularity 9/10 Helpfulness 4/10 Language sql

Source: Grepper

Tags: mysql mysq

Link to this answer
Share Copy Link

Contributed on Jun 18 2022

Darkstar

0 Answers Avg Quality 2/10

mysql find duplicate rows multiple columns

Comment

-1

-- multiple columns
SELECT COUNT(*) c , 
CONCAT(students.first_name, "----",students.last_name) 
FROM students WHERE students.class_id = classes.id
GROUP BY CONCAT(first_name,"----",last_name) HAVING c > 1;

Popularity 8/10 Helpfulness 4/10 Language sql

Source: Grepper

Tags: find multiple-columns multip

Link to this answer
Share Copy Link

Contributed on Sep 14 2022

ShanK

0 Answers Avg Quality 2/10

MySQL repeated values

Comment

-2

            
                
            
         SELECT 
    col, 
    COUNT(col)
FROM
    table_name
GROUP BY col
HAVING COUNT(col) > 1;
Code language: SQL (Structured Query Language) (sql)

Popularity 10/10 Helpfulness 4/10 Language sql

Source: www.mysqltutorial.org

Tags: mysql mysq

Link to this answer
Share Copy Link

Contributed on May 04 2021

Smiling Sable

0 Answers Avg Quality 2/10

finding duplicate rows mysql

Comment

SELECT name, COUNT(*) c FROM table GROUP BY name HAVING c > 1;

Popularity 9/10 Helpfulness 4/10 Language sql

Source: stackoverflow.com

Tags: mysql mysq

Link to this answer
Share Copy Link

Contributed on Oct 20 2021

Itchy Iguana

0 Answers Avg Quality 2/10

mysql find duplicates in same table

Contents

More Related Answers

mysql find duplicates in same table

Closely Related Answers

find duplicates mysql column

finding duplicate rows mysql

find duplicate keys in mysql

myql find duplicates

select where duplicate mysql

how to duplicate mysql table

mysql find duplicate rows multiple columns

MySQL repeated values

finding duplicate rows mysql

Grepper

Documentation

Social

Legal

Contact

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