What is necessary for your query on an existing view to execute successfully? （） The underlying tables must have data.。 You need SELECT privileges on the view.。 The underlying tables must be in the same schema.。 You need SELECT privileges only on the underlying tables.。
工程监理单位必须依据（）规定，派出监理机构进驻工程施工现场 监理规范。 工程监理委托合同。 监理招标文件。 政府文件。
A retailer has IBM and HP servers. They are comparing the IBM DS4500 storage solution to their current HP StorageWorks EVA 2C12D. Which TWO of the following are the key advantages of the IBM solution over the EVA product？（） DS4500 offers better connectivity to the IBM iSeries Servers.。 DS4500 ships with remote volume mirroring （RVM） and Flashcopy services.。 DS4500 offers virtual arrays and fibre tape backup options that make it a less expensive solution.。 DS4500 offers storage manager software standard while EVA requires purchasing of the management software.。 DS4500 offers a flexible solution customizable by the customer while EVA ships standard with a minimum of six disk enclosures.。
Case-insensitive sorts are always accent insensitive by default.（） True。 False。
以下物流服务属于增值性物流服务的是（） 储存功能。 物流信息处理功能。 需求预测功能。 流通加工功能。
While reviewing the MySQL error log, you see occasions where MySQL has exceeded the number of file handles allowed to it by the operating system.
Which method will reduce the number of file handles in use?（）
