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24 sie 2012 · You can join against a subquery that pulls the MAX(Group) and Age. This method is portable across most RDBMS. SELECT t1.* FROM yourTable t1 INNER JOIN ( SELECT `Group`, MAX(Age) AS max_age FROM yourTable GROUP BY `Group` ) t2 ON t1.`Group` = t2.`Group` AND t1.Age = t2.max_age;
14 kwi 2011 · SELECT ( SELECT MIN(t2.pid) FROM test t2 WHERE t2.rid = t.rid AND t2.timestamp = maxtimestamp ) AS pid , MAX(t.timestamp) AS maxtimestamp , t.rid FROM test t GROUP BY t.rid But this way, you'll need one more subquery if you want cost included in the shown columns, etc.
27 kwi 2024 · MySQL MAX () function with GROUP BY retrieves maximum value of an expression which has undergone a grouping operation (usually based upon one column or a list of comma-separated columns). Example: Sample table: book_mast. Code: -- This SQL query retrieves the maximum book price for each category.
To find the maximum value for every group, you use the MAX function with the GROUP BY clause. This statement uses the MAX() to get the largest payment from each customer: SELECT customerNumber, MAX (amount) FROM payments GROUP BY customerNumber ORDER BY MAX (amount); Code language: SQL (Structured Query Language) ( sql )
16 maj 2024 · In this page we are discussing, how the GROUP BY clause along with the SQL MAX () can be used to find the maximum value of a column over each group. Example: Sample table: agents.
mysql> SELECT student_name, MIN(test_score), MAX(test_score) FROM student GROUP BY student_name; For MAX() , MySQL currently compares ENUM and SET columns by their string value rather than by the string's relative position in the set.
The GROUP BY statement groups rows that have the same values into summary rows, like "find the number of customers in each country". The GROUP BY statement is often used with aggregate functions ( COUNT() , MAX() , MIN() , SUM() , AVG() ) to group the result-set by one or more columns.
