Scalable Database Server, HiRDB Version 8 Description

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7.4.2 Reusing used free segments

Organization of this subsection
(1) Releasing used free segments
(2) Benefits gained from releasing used free segments

(1) Releasing used free segments

By executing the free page release utility, you can convert used free segments to unused segments, and reuse them. This is called releasing used free segments. Figure 7-17 provides an overview of releasing used free segments.

Figure 7-17 Releasing used free segments

[Figure]

For details about releasing used free segments, see the HiRDB Version 8 System Operation Guide.

(2) Benefits gained from releasing used free segments

Once segments are allocated, only the table (or index) that is assigned to use a particular segment can use it; no other table can do so. Releasing used free segments converts used free segments to unused segments, which allows other tables to use them.