superdatabase

From super- +‎ database.

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superdatabase (plural superdatabases)

1. (databases) A large or composite database.
   • 1998, IEEE, 1998 Index to IEEE Publications

     A technological and infrastructural challenge: a superdatabase for accessing all electronically published science and technology articles at once...

   • 1999, Susan Gauch, Proceedings of the Eighth International Conference on Information Knowledge:

     Every 30 databases are grouped into a superdatabase.

   • 2008 December 31, Alan Travis, Richard Norton-Taylor, “Private firm may track all email and calls”, in The Guardian‎^[1], archived from the original on 13 September 2018:

     But in his strongest criticism yet of the superdatabase, Sir Ken Macdonald, the former director of public prosecutions, who has firsthand experience of working with intelligence and law enforcement agencies, told the Guardian such assurances would prove worthless in the long run […] The home secretary postponed the introduction of legislation to set up the superdatabase in October and instead said she would publish a consultation paper in the new year setting out the proposal and the safeguards needed to protect civil liberties.