/TypeScript/How to get duplicate elements in sql

How to get duplicate elements in sql

Select duplicates in sql

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

Source: chartio.com

Sql count duplicate rows

SELECT _column, COUNT(*) 
FROM _table
GROUP BY _column
HAVING COUNT(*) > 1

How to get duplicate elements in sql

• SELECT first_name, COUNT (first_name) FROM employees
GROUP BY first_name
HAVING (COUNT(first_name) > 1);

FIND DUPLICATES IN COLUMN SQL

declare @YourTable table (id int, name varchar(10), email varchar(50))

INSERT @YourTable VALUES (1,'John','John-email')
INSERT @YourTable VALUES (2,'John','John-email')
INSERT @YourTable VALUES (3,'fred','John-email')
INSERT @YourTable VALUES (4,'fred','fred-email')
INSERT @YourTable VALUES (5,'sam','sam-email')
INSERT @YourTable VALUES (6,'sam','sam-email')

SELECT
    name,email, COUNT(*) AS CountOf
    FROM @YourTable
    GROUP BY name,email
    HAVING COUNT(*)>1

-1

Source: stackoverflow.com

Similar codes

12 votes201 views4 answers
Whats sql
TypeScript
0 vote209 views1 answer
Testing with limited information
TypeScript
0 vote221 views1 answer
Make an interface iterator typescript
TypeScript
1 vote206 views1 answer
Ionic copy to clipboard
TypeScript
1 vote224 views1 answer
How to get absolute value of elements of list in python
TypeScript
1 vote161 views1 answer
Jquery selector id starts with and ends with
TypeScript
3 votes188 views2 answers
Angular formgroup validate manually
TypeScript
0 vote202 views1 answer
Path represents file or directory java
TypeScript
0 vote236 views1 answer
Input type=file events jquery
TypeScript
6 votes199 views3 answers
Google sheets if
TypeScript