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Diffstat (limited to 'sem7/db/eksamnen.md')
| -rw-r--r-- | sem7/db/eksamnen.md | 1 |
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diff --git a/sem7/db/eksamnen.md b/sem7/db/eksamnen.md index 5c6da48..143a706 100644 --- a/sem7/db/eksamnen.md +++ b/sem7/db/eksamnen.md @@ -10,6 +10,7 @@ - *Summarizability* on page 52 in DW book. - *Data marts* is a subset of a data wareshouse, containing only as single subject such as sales. - *Heterogeneity* page 19 in parallel book + - *Total cost* er sum af alle query costs, hvor en query cost bare er cost af billigste materialization ancestor. # Nice Spatial SQL Commands |