Sql 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)

Sql duplicate rows

/*SELECT hotel_id, reservation_id, COUNT(hotel_id)FROM staywhere  reservation_id is not nullGROUP BY hotel_id, reservation_idHAVING COUNT(hotel_id) > 1*/select distinct s.hotel_id , t.* from stay sright join (    select hotel_id, reservation_id, count(*) as qty    from staywhere reservation_id !=1      group by hotel_id, reservation_id    having count(*) > 1) t on s.hotel_id = t.hotel_id and s.reservation_id = t.reservation_id

Sql duplicate rows

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

Similar codes

2 votes139 views2 answers
Sql strip non alphanumeric characters
SQL
1 vote156 views2 answers
Mysql add column tinyint default 0
SQL
0 vote135 views1 answer
Write a query to peint the pattern P(20)
SQL
2 votes128 views2 answers
Join update query in sql
SQL
0 vote138 views2 answers
Temp Space
SQL
0 vote129 views1 answer
Postgres select except
SQL
0 vote141 views1 answer
Get the next column of a table in mysql
SQL
-1 vote142 views1 answer
How to reset autoincrement in sqlite java
SQL
1 vote151 views3 answers
Connection string mysql
SQL
3 votes133 views2 answers
Brew start mysql
SQL