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In the following example we use the CONNECT BY clause in a query from dual to generate the correct number of rows for the unpivot operation.By Ludek Bob Jankovsky, 1 ( ORACLE STUFFS)Īside standard unpivot tasks (we create n rows using values from n columns) following unpivot task appears: Prior to 11g, we can get the same result using the DECODE function and a pivot table with the correct number of rows. UNPIVOT INCLUDE NULLS (quantity FOR product_code IN (product_code_a AS 'A', product_code_b AS 'B', product_code_c AS 'C', product_code_d AS 'D')) The following query shows the inclusion of the INCLUDE NULLS clause. To override the default behaviour use the INCLUDE NULLS clause.
![pivot in oracle 10g pivot in oracle 10g](https://i.stack.imgur.com/CwkYD.jpg)
PIVOT (SUM(quantity) AS sum_quantity FOR (product_code) IN ('A' AS a, 'B' AS b, 'C' AS c)) Ī_SUM_QUANTITY B_SUM_QUANTITY C_SUM_QUANTITY
![pivot in oracle 10g pivot in oracle 10g](https://i.stack.imgur.com/uEW9P.jpg)
We are forced to list the required values to PIVOT using the IN clause. In its basic form the PIVOT operator is quite limited. So our test data starts off looking like this. INSERT INTO pivot_test VALUES (10, 4, 'A', 100) INSERT INTO pivot_test VALUES (9, 3, 'D', 90) INSERT INTO pivot_test VALUES (8, 3, 'C', 80) INSERT INTO pivot_test VALUES (7, 3, 'B', 70) INSERT INTO pivot_test VALUES (6, 3, 'A', 60) INSERT INTO pivot_test VALUES (5, 2, 'C', 50) INSERT INTO pivot_test VALUES (4, 2, 'A', 40) INSERT INTO pivot_test VALUES (3, 1, 'C', 30) INSERT INTO pivot_test VALUES (2, 1, 'B', 20) INSERT INTO pivot_test VALUES (1, 1, 'A', 10) To see the PIVOT operator in action we need to create a test table. The PIVOT operator takes data in separate rows, aggregates it and converts it into columns.
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PIVOT and UNPIVOT Operators in Oracle Database 11g.
#PIVOT IN ORACLE 10G HOW TO#
This article shows how to use the new PIVOT and UNPIVOT operators in 11g, as well as giving a pre-11g solution to the same problems. Home » Articles » 11g » Here PIVOT and UNPIVOT Operators in Oracle Database 11g Release 1