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

0 vote139 views1 answer
Postgres change the name of schema
SQL
0 vote124 views1 answer
#1231 - Variable 'sql_mode' can't be set to the value of 'NULL'
SQL
0 vote123 views1 answer
Mysql procedure between two tables
SQL
0 vote180 views1 answer
Mysql update table from select on another table
SQL
1 vote115 views1 answer
GROUP BY clause; this is incompati
SQL
41 votes178 views6 answers
Alter table add column in SQL Server
SQL
0 vote115 views1 answer
Find invalid datetime field
SQL
0 vote121 views3 answers
Condition in count sql
SQL
0 vote129 views4 answers
What is unique key in sql
SQL
4 votes122 views1 answer
Oracle user tables
SQL