This question already has answers here:
You could use the
row_number window function to number each value of
f3 (per group of
f2) either in ascending or descending order, and then query the third one:
SELECT f1, f2, f3
FROM (SELECT f1,
ROW_NUMBER() OVER (PARTITION BY f1, f2 ORDER BY f3 ASC /* or desc */) AS rn
FROM mytable) t
WHERE rn = 3
Hierarchical Queries, In a hierarchical query, one expression in condition must be qualified with the then only one condition requires the PRIOR operator, although you can have The following example uses a GROUP BY clause to return the total salary of each Unless otherwise stated, group functions ignore NULL values. If you use a group function in a statement containing no GROUP BY clause, it is equivalent to grouping on all rows. For more information, see Section 12.19.3, “MySQL Handling of GROUP BY”.
You can try to use
Rank window function to make it.
SELECT f1, f2, f3
RANK() OVER (PARTITION BY f1, f2 ORDER BY f3 ASC) AS rn
FROM T t1
WHERE rn = 3
Fetch the nth row from the last for a combination - Ask Tom, Developers and DBAs get help from Oracle experts on: Fetch the nth row from the last for Answered by: Tom Kyte - Last updated: May 02, 2012 - 1:49 pm UTC We want to fetch the third from the last for each group and populate it to target. Here I should group by the first 6 characters of DOCID and if the STATUS_ID in any one row in the group is other than 203 or 204 then this group should be excluded from the output. So in this case only LB0001 and LB0004 group rows should be in the resultset.
this will work:
select * from (select f1,f2,f3,rank() over (partition by f1,f2 order by f3)
from Table1 ) where rank=3;
Ask TOM "Howto select first value in a group by bunch of ro", Developers and DBAs get help from Oracle experts on: Howto select first How to remove the rows in a group if any one row in the group does in ASC order in each group, the query result should like this, get the third one: A A 3 A B 6 in DESC order in each group, the query result should like this, get the third on: A A 1 A B 2 is there a way to query the table and get a result like above in Oracle?
The UNION [ALL], INTERSECT, MINUS Operators, If all queries select values of type NUMBER , then the returned values have datatype Oracle does not perform implicit conversion across datatype groups. (using the TO_CHAR function) when columns do not exist in one or the other table: The main Suppliers page allows you to search for existing supplier records in order to maintain the supplier’s details, access the Create Supplier page, or review change requests that suppliers have submitted through the Oracle iSupplier Portal for their profile details. [PDF] Retrieval: Multiple Tables and Aggregation, such reports by using the GROUP BY clause of the SELECT command. Group functions Tuple variables always have at least one advan- tage: they enhance the query of Listing 8-5. In a third column, we also want to see the. To find nth highest salary in Oracle is a question basically every Oracle developer might have encountered directly or indirectly in their career. You may get numerous answers in different kind of forums. Let us try to consolidate all answers at one place.
Operators, Functions, Expressions, Conditions, Table 3-1 lists the levels of precedence among SQL operators from high to low. The following query uses the = operator, rather than the LIKE operator, to find the Oracle applies the group functions in the select list to each group of rows and its second, and then reenabled for the portion following its third, and so on. Developers and DBAs get help from Oracle experts on: Returning the first row of an ordered resultset in Oracle 220.127.116.11