极大型数据库?。
要注意sql语句是如何创建的；否则，运行这些sql语句会极大地影响对时间延时非常敏感的大型数据库的性能。
Be careful how you create SQL statements; otherwise, running them could adversely affect the performance of a large database that might be latency sensitive.
要注意sql语句是如何创建的；否则，运行这些sql语句会极大地影响对时间延时非常敏感的大型数据库的性能。
Be careful how you create SQL statements; otherwise, running them could adversely affect the performance of a large database that might be latency sensitive.
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