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Oracle database space

The sum of sm$ts_free.bytes and sm$ts_used.bytes is not equal to sm$ts_alloc.byte开发者_JAVA技巧s.

What can be the reason behind it?


There is a discussion about these views in the OTN forum. It seems the difference between sm$ts_free.bytes + sm$ts_used.bytes and sm$ts_alloc.bytes is a constant overhead. It is probably used to store tablespace header information.

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