diff --git a/semester4/dmdb/data-modelling-databases-summary.pdf b/semester4/dmdb/data-modelling-databases-summary.pdf
index 511c4ea..4bd0908 100644
Binary files a/semester4/dmdb/data-modelling-databases-summary.pdf and b/semester4/dmdb/data-modelling-databases-summary.pdf differ
diff --git a/semester4/dmdb/data-modelling-databases-summary.tex b/semester4/dmdb/data-modelling-databases-summary.tex
index 9678811..414724e 100644
--- a/semester4/dmdb/data-modelling-databases-summary.tex
+++ b/semester4/dmdb/data-modelling-databases-summary.tex
@@ -2,6 +2,9 @@
 
 \input{~/projects/latex/janishutz-helpers.tex}
 
+\setupGlossary
+\input{glossary/main.tex}
+
 \usepackage{lmodern}
 \setFontType{sans}
 
@@ -12,36 +15,41 @@
 
 \vspace{1cm}
 \begin{center}
-    \includegraphics[width=0.5\linewidth]{~/projects/latex/assets/logo.jpg}
+	\includegraphics[width=0.5\linewidth]{~/projects/latex/assets/logo.jpg}
 \end{center}
 
 
 \vspace{2cm}
 \begin{center}
-    \begin{Large}
-        \quote{A curry can be written in many different ways}
-    \end{Large}
+	\begin{Large}
+		\quote{A curry can be written in many different ways}
+	\end{Large}
 
-    \hspace{3cm} - Prof. Dr. Gustavo Alonso, 2026
+	\hspace{3cm} - Prof. Dr. Gustavo Alonso, 2026
 \end{center}
 
 \vspace{1.5cm}
 \begin{center}
-    FS2026, ETHZ
+	FS2026, ETHZ
 
-    \begin{Large}
-        Summary of the Script and Lectures
-    \end{Large}
+	\begin{Large}
+		Summary of the Script and Lectures
+	\end{Large}
 \end{center}
 
-
 \newpage
+
 \printtoc{Aquamarine}
 
+\newpage
 
 \section{Introduction}
 A note on the quote on the title page: He did not \textit{actually} mean ``curry'', but of course ``query'', but he just pronounced it that way.
 
+This summary assumes some basic knowledge about databases.
+All words written in \textbf{bold} should be clickable and should link you to the corresponding term in the glossary.
+If I did not forget a term that is, of course.
+
 
 \newsection
 \section{SQL}
@@ -49,5 +57,7 @@ A note on the quote on the title page: He did not \textit{actually} mean ``curry
 \input{parts/00_sql/01_operations.tex}
 
 
+\printGlossary
+
 
 \end{document}
diff --git a/semester4/dmdb/glossary/acronyms.tex b/semester4/dmdb/glossary/acronyms.tex
new file mode 100644
index 0000000..522775d
--- /dev/null
+++ b/semester4/dmdb/glossary/acronyms.tex
@@ -0,0 +1 @@
+\newacronym{sql}{SQL}{Structured Query Language}
diff --git a/semester4/dmdb/glossary/basics.tex b/semester4/dmdb/glossary/basics.tex
new file mode 100644
index 0000000..0c172ae
--- /dev/null
+++ b/semester4/dmdb/glossary/basics.tex
@@ -0,0 +1,12 @@
+\newglossaryentry{declarative}{
+    name={declarative},
+    description={Describes \textit{what} to achieve, but not how}
+}
+\newglossaryentry{imperative}{
+    name={imperative},
+    description={Describes how to achieve something}
+}
+% \newglossaryentry{}{
+%     name={},
+%     description={}
+% }
diff --git a/semester4/dmdb/glossary/main.tex b/semester4/dmdb/glossary/main.tex
new file mode 100644
index 0000000..05e8c02
--- /dev/null
+++ b/semester4/dmdb/glossary/main.tex
@@ -0,0 +1,3 @@
+\input{glossary/acronyms.tex}
+\input{glossary/basics.tex}
+% \input{}
diff --git a/semester4/dmdb/parts/00_sql/00_intro.tex b/semester4/dmdb/parts/00_sql/00_intro.tex
index 2325f23..1992e03 100644
--- a/semester4/dmdb/parts/00_sql/00_intro.tex
+++ b/semester4/dmdb/parts/00_sql/00_intro.tex
@@ -1 +1 @@
-SQL is a declarative programming language, used to describe and operate on databases.
+\refacr{sql} is a \refgls{declarative} programming language, used to describe and operate on databases.