How do I get the max of two values in SQL?

How do I get the max of two values in SQL?

SELECT MAX (column_name) FROM table_name WHERE column_name NOT IN (SELECT Max (column_name) FROM table_name); First we selected the max from that column in the table then we searched for the max value again in that column with excluding the max value which has already been found, so it results in the 2nd maximum value.

How do I get the maximum value from multiple columns in SQL?

To get the maximum value from three different columns, use the GREATEST() function. Insert some records in the table using insert command. Display all records from the table using select statement.

Can Max return multiple values SQL?

Answer. Typically, when you have more than one row that contains the minimum or maximum value in a column, the topmost row containing that value will be returned in the result.

How use both count and Max in SQL?

To get one row with the highest count, you can use ORDER BY ct LIMIT 1 : SELECT c. yr, count(*) AS ct FROM actor a JOIN casting c ON c. actorid = a.id WHERE a.name = ‘John Travolta’ GROUP BY c.

How do you find the maximum value of each group in SQL?

SELECT department, MAX(salary) AS “Highest salary” FROM employees GROUP BY department; Because you have listed one column in your SQL SELECT statement that is not encapsulated in the MAX function, you must use the SQL GROUP BY clause. The department field must, therefore, be listed in the GROUP BY section.

How do I return a max value in SQL?

To find the max value of a column, use the MAX() aggregate function; it takes as its argument the name of the column for which you want to find the maximum value. If you have not specified any other columns in the SELECT clause, the maximum will be calculated for all records in the table.

How do I find the maximum value of a column in SQL Server?

Does Max need group by?

As per the error, use of an aggregate like Max requires a Group By clause if there are any non-aggregated columns in the select list (In your case, you are trying to find the MAX(Num) and then return the value(s) associated in the ID column).

How Max function works in SQL?

SQL Server MAX() function is an aggregate function that returns the maximum value in a set. The MAX() function accepts an expression that can be a column or a valid expression. Similar to the MIN() function, the MAX() function ignores NULL values and considers all values in the calculation.

How do you use max and count together?

The solution is to use the first table as a subquery. We will create an additional query, an outer query, which uses the first table in its FROM clause. It will be able to use MAX() on the COUNT() result from the first table, thus circumventing the direct use of two layered aggregate functions.

Can I use Max count *?

No, we can’t use a MAX(COUNT(*) and we can not layer aggregate functions on top of one another in the same SELECT clause. In a subquery, the inner aggregate would have to be performed.

Can you GROUP BY Max in SQL?

SQL Server MAX() with GROUP BY clause example First, the GROUP BY clause divided the products into groups by the brand names. Then, the MAX() function is applied to each group to return the highest list price for each brand.