How do I get the max date in SQL Developer?
SQL MAX() on date value using join
- ‘ ord_date’ should be largest(maximum) from the ‘orders’ table,
- largest (maximum) ‘ord_date’ should be equal to the ‘ord_date’ of ‘ orders’ table,
- ‘ agent_code’ of ‘orders’ table should be equal to the ‘agent_code’ of ‘despatch’ table for joining,
What is the max date in Oracle?
DATE, TIME, and TIMESTAMP limitations
| Value | Limit |
|---|---|
| Largest DATE value | 9999-12-31 |
| Smallest TIME value | 00:00:00 |
| Largest TIME value | 24:00:00 |
| Smallest TIMESTAMP value | 0001-01-01-00.00.00.000000 |
How do I return most recent date in SQL?
1 Answer
- select t.username, t.date, t.value.
- from MyTable t.
- inner join (
- select username, max(date) as MaxDate.
- from MyTable.
- group by username.
- ) tm on t.username = tm.username and t.date = tm.MaxDate.
How do I get the max date from a month in SQL?
The following query gets around that by grouping by the first day of the month.
- SELECT.
- MAX(date)
- FROM.
- @table.
- GROUP BY.
- dateadd(month,datediff(month,0,date),0)
Can we use MAX function on date?
MAX() function will give you the maximum values from all the values in a column. MAX function works with “date” data types as well and it will return the maximum or the latest date from the table.
Can we use MAX function in where clause?
MAX() function with Having The SQL HAVING CLAUSE is reserved for aggregate function. The usage of WHERE clause along with SQL MAX() have also described in this page. The SQL IN OPERATOR which checks a value within a set of values and retrieve the rows from the table can also be used with MAX function.
Can we use max without 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).
Can we use max without Group By?
Can we write Max in WHERE clause?
Is partition by same as GROUP BY?
A GROUP BY normally reduces the number of rows returned by rolling them up and calculating averages or sums for each row. PARTITION BY does not affect the number of rows returned, but it changes how a window function’s result is calculated.
What is the correct syntax of Max () in SQL?
Try using this SQL SELECT statement: SELECT * FROM employees WHERE department_id=30 AND salary = (SELECT MAX(salary) FROM employees WHERE department_id=30); This will return the employee information for only the employee in department 30 that has the highest salary.
Can we use max with GROUP BY?
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).
How many days does each partition hold?
This means that each partition will hold 1 day. Your query (if properly constructed) would use the 7 most recent partitions. 6. You can drop the older partitions when you no longer need them.
How do I use Max () as an analytic function in Oracle?
One, the syntax for using the aggregate function MAX () as an analytic function (which is what Oracle helpfully calls a window function) looks like this: (note the position of the parentheses). Second, from your desired result set, you don’t actually want a window function, you want to aggregate.
How to get a specific number of rows in Oracle 12c?
FROM TABLENAME t JOIN ( SELECT A, MAX (col_date) AS col_date FROM TABLENAME GROUP BY A ) m ON m.A = t.A AND m.col_date = t.col_date Since Oracle 12C, you can fetch a specific number of rows with FETCH FIRST ROW ONLY . In your case this implies an ORDER BY, so the performance should be considered.