Duplicate record mysql

Select where duplicate mysql

SELECT 
    col1, COUNT(col1),
    col2, COUNT(col2)
FROM
    table_name
GROUP BY 
    col1, 
    col2
HAVING 
       (COUNT(col1) > 1) AND 
       (COUNT(col2) > 1);

Source: mysqltutorial.org

Find duplicate keys in mysql

SELECT col, COUNT(col) FROM table_name GROUP BY col HAVING COUNT(col) > 1;

Duplicate record mysql

SELECT firstname, 
   lastname, 
   list.address 
FROM list
   INNER JOIN (SELECT address
               FROM   list
               GROUP  BY address
               HAVING COUNT(id) > 1) dup
           ON list.address = dup.address;

Source: stackoverflow.com

MySQL repeated values

            
                
            
         SELECT 
    col, 
    COUNT(col)
FROM
    table_name
GROUP BY col
HAVING COUNT(col) > 1;
Code language: SQL (Structured Query Language) (sql)

-1

Source: mysqltutorial.org

Similar codes

1 vote144 views1 answer
Alphabetical order mysql
SQL
3 votes152 views3 answers
Postgresql random number
SQL
0 vote153 views2 answers
Generate sql trigger through ef migration
SQL
2 votes149 views2 answers
Mysqli_real_connect(): The server requested authentication method unknown to the client [caching_sha2_password]
SQL
0 vote143 views1 answer
What is ssrs and ssis in sql server
SQL
1 vote144 views1 answer
Cross schema query oracle 2 users
SQL
0 vote101 views2 answers
Delete query sql server
SQL
0 vote133 views2 answers
CREATE TABLE researcher ( researcherid serial PRIMARY KEY, name text );
SQL
0 vote110 views1 answer
Finish transaction sql
SQL
0 vote157 views2 answers
Sql max count
SQL