uld like to create a function to sum up total order amount within the date range, but i don't know how to write the right query. The query below is for counting the total orders, but I want to change to sum up total order amount. The Database table is attached. Please assist. ************************************** USE SQLBook; DROP FUNCTION IF EXISTS GetDateRangewithordersAmount GO
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
I would like to create a function to sum up total order amount within the date range, but i don't know how to write the right query. The query below is for counting the total orders, but I want to change to sum up total order amount.
The
Please assist.
**************************************
USE SQLBook;
DROP FUNCTION IF EXISTS GetDateRangewithordersAmount
GO
CREATE FUNCTION GetDateRangewithordersAmount
(
@startDate DateTime,
@endDate DateTime
)
RETURNS TABLE
AS
RETURN
(
select [State], count (*) as [TotalOrderAmount]
FROM [SQLBook].[dbo].[Orders]
WHERE [OrderDate] between @startDate AND @endDate
group by [State]
)
GO
SELECT * FROM GetDateRangewithordersAmount('2015-09-01','2015-10-31');
GO
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