select distinct mysql code example
Example 1: select count of distinct values sql
SELECT COUNT (DISTINCT column-name) FROM table-name
Example 2: distincct sql
SELECT DISTINCT column1, column2, ...
FROM table_name;
Example 3: 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;
Example 4: query DISTINCT
SELECT DISTINCT Column_name FROM table_name;
Example 5: 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;