Many users employ a shadow copy of their database (Figure 4) to support large and ad-hoc queries against the operational data.

许多用户使用数据库的影子副本(图4)支持基于操作数据的大型专用查询。

youdao

Password file-base authentication: authentication is based on the password and shadow files or interaction with Network Information System (NIS), on the machine where the database server is installed.

基于密码文件的身份验证：身份验证基于安装数据库服务器的机器上的密码和影子文件，或者与Net work Information System (NIS)的交互。

youdao

This graph shows the number of messages that were in the database I was running a test on, plotted over time. I added in a logo, a drop shadow effect, and a stats table of the test run.

图 7 是一个线图，显示了测试的数据库中的一些信息，添加了一个徽标、阴影效果和测试的统计表。

youdao

But shadow home secretary Yvette Cooper condemned changes to the DNA database, which cut the time that DNA profiles of those who are arrested but not convicted can be held, from six to three years.

BBC: Protection of Freedoms Bill clears the Commons