/TypeScript/How to get duplicate values in sql

How to get duplicate values in sql

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)

How to get duplicate values 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

0 vote159 views1 answer
Aading two floating points in nasm assembly grepper
TypeScript
8 votes162 views3 answers
Cannot find module '@angular-devkit/build-angular/package.json'
TypeScript
1 vote155 views3 answers
What is test data
TypeScript
19 votes169 views3 answers
Set default route angular
TypeScript
2 votes149 views2 answers
Remove all the elements from a numpy array python
TypeScript
0 vote139 views1 answer
How to take inputs in one line in c
TypeScript
1 vote273 views2 answers
Replying to tweets api tweepy
TypeScript
0 vote109 views1 answer
Laravel validation check if id exists in table
TypeScript
0 vote167 views1 answer
How to call a function in a macro with variadic arguments c++
TypeScript
1 vote159 views1 answer
Typescript while
TypeScript