/SQL/Sql check duplicate value in column

Sql check duplicate value in column

Finding duplicate column values in table with sql

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

26

Source: chartio.com

Sql query to find duplicates in column

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

11

Source: stackoverflow.com

Sql check duplicate value in column

SELECT columnName, COUNT(columnName)
FROM tableName
GROUP BY columnName
HAVING COUNT(columnName)>1

0

Source: learnsql.com

Similar codes

1 vote245 views1 answer
Oracle sql first day of year
SQL
1 vote234 views1 answer
Sql to mongodb query converter
SQL
0 vote229 views1 answer
The local psql command could not be located
SQL
0 vote238 views1 answer
Java spring boot connect to sql server
SQL
13 votes243 views5 answers
Sql default
SQL
0 vote229 views1 answer
How to query all tables mysql at the same time
SQL
2 votes202 views1 answer
Foreign key example in dbms
SQL
0 vote240 views1 answer
Data structures in sql
SQL
-1 vote221 views1 answer
How to use update trigger in sql
SQL
12 votes225 views1 answer
Env var for setting password for root user mysql docker hub
SQL

Share