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Q. |
Hidden knowledge referred to |
A. | a set of databases from different vendors, possibly using different database paradigms |
B. | an approach to a problem that is not guaranteed to work but performs well in most cases |
C. | information that is hidden in a database and that cannot be recovered by a simple sql query. |
D. | none of these |
Answer» C. information that is hidden in a database and that cannot be recovered by a simple sql query. |
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