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 votes197 views2 answers
Mysql get last character of string
SQL
1 vote235 views1 answer
Sqlite3 read only
SQL
1 vote264 views3 answers
Read all columns of a table sql
SQL
10 votes252 views4 answers
Primary key in sql
SQL
0 vote264 views2 answers
Temp Space
SQL
0 vote234 views1 answer
What is ssrs and ssis in sql server
SQL
0 vote223 views1 answer
Pl/sql loop example
SQL
0 vote250 views3 answers
How to assign custom id in mysql
SQL
0 vote241 views1 answer
Oracle last connexion
SQL
0 vote249 views1 answer
Sparql if bound query
SQL