Reordering Columns and Rows in Oracle For Demantra Performance Improvement Prior to 220.127.116.11
(Doc ID 1085012.1)
Last updated on JANUARY 22, 2018
Oracle Demantra Demand Management - Version 7.0.1 to 7.3.1 [Release 7 to 7.3.0] Information in this document applies to any platform.
Reordering Columns and Rows in Oracle For Demantra Performance Improvement ===============================================================
Columns and Rows in an Oracle table are not necessarily stored on the disk in primary key (consecutive) order.
Due to the way the Oracle RDBMS stores data physically on disk, it is possible to reduce storage and improve performance by rebuilding large tables that have many NULL-value or empty columns, to the end of the row. This is known as reordering.
*Note: If it takes hours then we need to run this in Production during off hours.
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