[DMDB] Completed normal forms, start query optimization

2026-07-27 21:29:09 +02:00 · 2026-06-30 16:21:35 +02:00
parent 4b4b74fcb6
commit 59e4bcd5e9
19 changed files with 168 additions and 13 deletions
@@ -1,4 +1,5 @@
 \subsubsection{Keys}
+\label{sec:relations-keys}
 \inlinedefinition[Candidate Key] The minimal set of fields that identify each tuple uniquely

 \inlinedefinition[Primary Key] A single candidate key, i.e. just a single field.
@@ -1,3 +1,4 @@
+\label{sec:relational-algebra}
 \subsubsection{Operators}
 \begin{itemize}
 	\item \bi{Union} $\cup$: $x \in R_1 \cup R_2 \Leftrightarrow x \in R_1 \lor x \in R_2$