select count of distinct values sql
SELECT COUNT (DISTINCT column-name) FROM table-name
select count of distinct values sql
SELECT COUNT (DISTINCT column-name) FROM table-name
MySQL DISTINCT
When querying data from a table, you may get duplicate rows. In order to remove these duplicate rows, you use the DISTINCT clause in the SELECT statement.
Here is the syntax of the DISTINCT clause:
SELECT DISTINCT
select_list
FROM
table_name;
mysql select distinct rows
SELECT DISTINCT location FROM users;
sql server select rows by distinct column
SELECT a.*
FROM emails a
INNER JOIN
(SELECT email,
MIN(id) as id
FROM emails
GROUP BY email
) AS b
ON a.email = b.email
AND a.id = b.id;
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