计数和使用PHP的MySQL

Question

我想计数，并使用PHP的MySQL

name 
AAA 
BBB 
BBB 
BBB 
AAA 
CCC 

结果应该是在从下面的表中的列显示每个重复的值显示在一列中的每个重复的值如下面

AAA-2 
BBB-3 
CCC-1 

Answer 1

select name, count(name) as count from table_name group by name 

Answer 2

您需要：

select name,count(1) from yourtable group by name 

如果你需要用连字符输出（ - ）

select concat(name,'-',count(1)) from yourtable group by name 

Answer 3

试试这个，

select name, count(*) from <table> group by name; 

Answer 4

SELECT name, COUNT(name) c_name FROM tablename GROUP BY name HAVING c_name>1 

Answer 5

<?php require_once('connection.php'); $result=mysqli_query($conn, "SELECT colum_name, concat(count(1),'-',colum_name) as colum_name FROM table_name group by colum_name order by colum_name desc"); while ( $data=mysqli_fetch_assoc($result)) { echo $data['colum_name']."<br>"; }