Next-Extent Size

The number of kilobytes that the database server allocates for a next extent is, in general, equal to the size of a next extent, as specified in the SQL statement CREATE TABLE. However, the actual size of the next-extent allocation might deviate from the specified size because the allocation procedure takes into account the following three factors:
  • Number of existing extents for this tblspace
  • Availability of contiguous space in the chunk and dbspace
  • Location of existing tblspace extents

The effect of each of these factors on next-extent allocation is explained in the paragraphs that follow and in Figure 1.


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