mysql select unique rows code example
Example 1: mysql unique select count
SELECT COUNT(DISTINCT productId) from table_name WHERE keyword='$keyword'
Example 2: 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;