Table Fragmentation

IDS engines support the intelligent placement of tables across multiple disks or across multiple files on a disk. This is known as table fragmentation, and contrary to the terminology commonly used in computer systems, fragmentation in this case is a good thing. Fragmentation occurs at table create or table alter level. In the table creation statement the DBA can specify a scheme for placing the table data into different dbspaces based on certain conditions exhibited by the data.

There are two methods of table fragmentation:

  • Round-robin: This type of fragmentation attempts to evenly distribute all of the data across all of the listed dbspaces for the table. In a non-fragmented table that consists of multiple dbspaces, the ...

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