[英]Oracle database space
The sum of sm$ts_free.bytes
and sm$ts_used.bytes
is not equal to sm$ts_alloc.bytes
. sm$ts_free.bytes
和sm$ts_used.bytes
的总和不等于sm$ts_alloc.bytes
。
What can be the reason behind it? 它背后的原因是什么?
There is a discussion about these views in the OTN forum. 在OTN论坛中讨论了这些观点 。 It seems the difference between sm$ts_free.bytes + sm$ts_used.bytes
and sm$ts_alloc.bytes
is a constant overhead. 似乎sm$ts_free.bytes + sm$ts_used.bytes
和sm$ts_alloc.bytes
之间的差异是一个恒定的开销。 It is probably used to store tablespace header information. 它可能用于存储表空间头信息。
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