McqMate
| 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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