What is an SQL Window Function? A window is a set of rows or observations in a table or result set. In a table, you may have more than one window depending on how you specify the query.

2014 iszilagyigit changed the title oracle 10+ agregate functions extenstion (FIRST, LAST) not supported by the parser oracle 10+ aggregate functions extenstion (FIRST, LAST) not supported by the ...

BR><BR>Is there a way to use aggregate functions and only group on specific keys, rather than every column? For instance, I have the following query a lot.<BR><BR>Select (lots of junk), Count ...

The error “Column is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause” occurs in SQL when a SELECT ...

Abstract: The article contains features of the implementation of aggregating functions for working with user-defined object data types in the Oracle DBMS in PL\SQL. An example of implementation and ...

-- SELECT DEPARTMENT_ID AS DEPT_ID, COUNT(DISTINCT JOB_ID) AS UNIQUE_JOB_ID FROM HR.EMPLOYEES GROUP BY DEPARTMENT_ID -- SELECT DEPARTMENT_ID,SUM(SALARY) FROM HR.EMPLOYEES GROUP BY DEPARTMENT_ID; -- ...