This is because these update operations require synchronous writing to the database log.

原因是这些更新操作都要求同步地写到数据库日志。

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Metadata database log (derby.log, db2diag.log)

元数据数据库日志 (derby.log, db2diag.log)

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Figure 10 shows the database log output in the database Explorer.

图10显示了Database Explorer中的数据库日志输出。

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"To the best of our knowledge, this is not a hack of Monster's security, rather, legitimate customer credentials are being used to log in to the database, " said Patrick Manzo, vice president of compliance and fraud prevention at Monster.

BBC: NEWS | Technology | Monster attack steals user data

Taking that proposal a step further, he suggests that Uncle Sam could adopt a system similar to California's "ReadyReturn" program, where taxpayers can log on to a database and see the government's estimate for their tax returns based on historical and wage information.

FORBES: In The Future, Tax Filing Will Be Easy

Point it at a site or an entire domain, such as .edu, and it generates a list of e-mails, log-in screens, database errors and source code, all of which are classic ways to gain entry onto a server.

FORBES: Google Me Not