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 can I return multiple values in SQL?
A SQL Server function can return a single value or multiple values. To return multiple values, the return type of the the function should be a table. Running the query will list out 10 consecutive dates starting from today, as shown below: As you can see, the return type of the function test_function is a table.
What does Max return in SQL?
The MAX() function returns the largest value of the selected column.
Can I use max count together in SQL?
Can I use MAX(COUNT()) in SQL? I came across an interesting SQL challenge that looked easy first and then proved to be a bit tricker than expected. And the short answer to the above question is, no. You can’t.
How do I get the max of multiple columns in SQL?
Find MAX value from multiple columns in a SQL Server table
- Solution 1. The first solution is the following: …
- Solution 2. We can accomplish this task by using UNPIVOT: …
- Solution 3. This task can be solved by using UNION: …
- Solution 4. And the fourth solution also uses a UNION:
How many values can be returned from a function in SQL?
Generally SQL Server functions will return only one parameter value if we want to return multiple values from function then we need to send multiple values in table format by using table valued functions.
How many values can be returned from a stored procedure in SQL?
How many values can be returned from a given stored function? Explanation: In MySQL, the stored function cannot return multiple values. Instead, multiple stored functions can be written and invoked from within a single statement however, they are different from stored procedures. 3.
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.
Which function is used to return the maximum value from a group of values?
Introduction to SQLite MAX function
The SQLite MAX function is an aggregate function that returns the maximum value of all values in a group. You can use the MAX function to accomplish a lot of things.
Can we use Max in having?
In the context of HAVING , MAX finds the max of each group. Only the latest entry in each group will satisfy date_updated=max(date_updated) . If there’s a tie for latest within a group, both will pass the HAVING filter, but GROUP BY means that only one will appear in the returned table.
How do I find the maximum number of occurrences in SQL?
select * from emp where empid in (select manager from (select manager, count(*) from emp group by 1 having count(*) = (select max(count) from (select manager, count(*) as count from emp group by 1) x) ) y ); This will also return multiple rows in case there is a tie for the most number of employees.
How can I calculate maximum salary in SQL?
select *from employee group by salary order by salary desc limit 1,1; There are other ways : SELECT name, MAX(salary) AS salary FROM employee WHERE salary IN (SELECT salary FROM employee MINUS SELECT MAX(salary) FROM employee);
How do you find the max of three 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.
How do you find the top 3 values in SQL?
The SQL SELECT TOP Clause
- SQL Server / MS Access Syntax: SELECT TOP number|percent column_name(s) FROM table_name. …
- MySQL Syntax: SELECT column_name(s) FROM table_name. …
- Oracle 12 Syntax: SELECT column_name(s) FROM table_name. …
- Older Oracle Syntax: SELECT column_name(s) …
- Older Oracle Syntax (with ORDER BY): SELECT *