当遇到日志写满情况，仍允许对数据库的读访问。
When a log full condition is encountered, read access is still allowed on the database.
与满房间档案盒存储的数据相比，现代计算机存储器存储的数据要多得多。
Modern computer memories can store more data than a roomful of filing boxes.
与满房间档案盒存储的数据相比，现代计算机存储器存储的数据要多得多。
Modern computer memories can store more data than a roomful of filing boxes.
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