select count of distinct values sql
SELECT COUNT (DISTINCT column-name) FROM table-nameselect count of distinct values sql
SELECT COUNT (DISTINCT column-name) FROM table-namedistinct sql
Distinct: helps to displays the non duplicate
records when retrieving the records from a table.
SELECT DISTINCT FIRST_NAME FROM VISITORS;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;Copyright © 2021 Codeinu
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