Finding duplicate rows mysql

Find duplicates mysql column

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

Source: stackoverflow.com

Myql find duplicates

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

Source: mysqltutorial.org

Mysql get latest duplicate rows

SELECT
   t1.primary_id,
   t1.duplicate_id,
   t1.data1,
   t1.data2
FROM
   table_name t1
LEFT JOIN table_name t2
	ON (t1.duplicate_id = t2.duplicate_id AND t1.primary_id < t2.primary_id) 
WHERE
	t2.primary_id IS NULL

Finding duplicate rows mysql

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

Source: stackoverflow.com

Mysql find duplicates in same table

## 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

Finding duplicate rows mysql

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

Source: stackoverflow.com

Similar codes

0 vote245 views1 answer
CREATE MULTIPLE FK
SQL
3 votes307 views1 answer
APEX elapsed time
SQL
1 vote263 views1 answer
Mysql order by desc null last
SQL
0 vote285 views1 answer
Mysql could not fetch tables
SQL
0 vote289 views1 answer
How to change null display in psql
SQL
1 vote295 views1 answer
Mysql select all and rename one
SQL
1 vote227 views1 answer
File /etc/init.d/mysql not exists
SQL
1 vote297 views1 answer
Postgresql export output table as a csv
SQL
0 vote286 views1 answer
Nosql vs sql
SQL
4 votes288 views1 answer
Sql any
SQL