Get the Largest Number in a mySQL Database in PHP

Question

I have a SQL Database that has a column like this:

ID
-----
0352
5432
4382
3520
30593
3992
295

What I want to do is search through that column, find the largest number (30593) and store it in a variable.

This database has other columns, the example above is for demonstration only.

eg

$largestNumber = GET LARGEST NUMBER FROM ID

How would I do that in PHP / MySQL

Answer 1

In PHP, we do it like this:

$rowSQL = mysql_query( "SELECT MAX( ID ) AS max FROM `tableName`;" );
$row = mysql_fetch_array( $rowSQL );
$largestNumber = $row['max'];

Answer 2

我相信SELECT max(id) FROM table会起作用。

Answer 3

试试这个查询

 "SELECT MAX(Price) AS HighestPrice FROM Products";

Answer 4

SELECT MAX(ID) FROM TABLE

执行该语句并将其分配给您的变量。

Answer 5

You can do a single query to figure this out:

http://www.tutorialspoint.com/mysql/mysql-max-function.htm

MySql has it's own Max function that will return the highest value in the specified column.

Answer 6

使用MAX(ID)获得最大值