OUTER JOIN

Former Member — Thu, 20 Sep 2007 07:18:28 GMT

hi,

please tell how to implement OUTER JOIN in ABAP,

I am aware of FOR ALL ENTRIES.

I think only on outer join i.e. RIGHT OUTER JON can be implemented how to do that.

points assured.

regards,

Prabhu

Re: OUTER JOIN

Former Member — Thu, 20 Sep 2007 07:20:24 GMT

Hi,

http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ec77446011d189700000e8322d00/content.htm

e.g.

INNER JOIN: Retrieves customers with orders only. For example, you want to determine the amount ordered by each customer and you only want to see those who have ordered something

SELECT Customers., Orders.

FROM Customers INNER JOIN Orders ON Customers.CustomerID =

Orders.CustomerID

LEFT OUTER JOIN: Retrieves all customers with or without orders. Order data for customers without orders appears as NULL values. For example, you want to determine the amount ordered by each customer and you need to see who has not ordered anything as well. You can also see the LEFT OUTER JOIN as a mirror image of the RIGHT OUTER JOIN if you switch the side of each table.

SELECT Customers., Orders.

FROM Customers LEFT OUTER JOIN Orders ON Customers.CustomerID =

Orders.CustomerID

RIGHT OUTER JOIN: Retrieves all orders with or without matching customer records. Customer data for orders without customers appears as NULL values. For example, you want to determine if there are any orders in the data with undefined CustomerID values (say, after a conversion or something like it). You can also see the RIGHT OUTER JOIN as a mirror image of the LEFT OUTER JOIN if you switch the side of each table.

SELECT Customers., Orders.

FROM Customers RIGHT OUTER JOIN Orders ON Customers.CustomerID =

Orders.CustomerID

regards

Nicole

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OUTER JOIN

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