Sql count duplicate rows

Select duplicates in sql

SELECT username, email, COUNT(*)
FROM users
GROUP BY username, email
HAVING COUNT(*) > 1

Source: chartio.com

Sql query to find duplicates in column

SELECT name, COUNT(email) 
FROM users
GROUP BY email
HAVING COUNT(email) > 1

Source: stackoverflow.com

Sql count duplicate rows

SELECT _column, COUNT(*) 
FROM _table
GROUP BY _column
HAVING COUNT(*) > 1

T-sql get duplicate rows

SELECT [CaseNumber], COUNT(*) AS Occurrences
FROM [CaseCountry]
GROUP BY [CaseNumber]
HAVING (COUNT(*) > 1)

How to get duplicate values in sql

• SELECT first_name, COUNT (first_name) FROM employees
GROUP BY first_name
HAVING (COUNT(first_name) > 1);

Get duplicate records in sql

Multiple field=SELECT username, email, COUNT(*)
FROM users
GROUP BY username, email
HAVING COUNT(*) > 1
Single field=SELECT _column, COUNT(*) 
FROM _table
GROUP BY _column
HAVING COUNT(*) > 1

Similar codes

0 vote399 views1 answer
New rails app with mysql
SQL
-1 vote342 views1 answer
Su: Authentication failure mysql
SQL
5 votes347 views1 answer
Commentaire table oracle
SQL
1 vote355 views1 answer
Wordpress change url phpmyadmin
SQL
0 vote350 views1 answer
Drop constraint in ms sql
SQL
3 votes386 views4 answers
Truncate syntax in sql
SQL
1 vote388 views1 answer
Mysql view curren querys
SQL
0 vote378 views1 answer
Spark sql grows beyond 64 kb
SQL
0 vote365 views1 answer
Spring Flyway Teams Edition or MySQL upgrade required: MySQL 5.5 is no longer supported by Flyway Community Edition, but still supported by Flyway Teams Edition.
SQL
0 vote406 views1 answer
Osm2pgsql mac
SQL