diff --git a/semester4/dmdb/data-modelling-databases-summary.pdf b/semester4/dmdb/data-modelling-databases-summary.pdf
index 208f2e2..f308145 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/parts/08_quick-overview/04_checklist.tex b/semester4/dmdb/parts/08_quick-overview/04_checklist.tex
index 4734962..6a4b781 100644
--- a/semester4/dmdb/parts/08_quick-overview/04_checklist.tex
+++ b/semester4/dmdb/parts/08_quick-overview/04_checklist.tex
@@ -5,6 +5,8 @@ The following things are typically important to know very well (not exhaustive)
     \item Functional Dependencies (including Candidate Keys, Super Keys, Closures and minimal covers)
     \item Normal Forms (and their Decomposition / Synthesis Algorithms)
     \item Time complexities, I/Os and sorted runs for Query Processing
+    \item Concepts behind the query processing operators
     \item Conflict Serializability
+    \item Core concepts of Vector Search
     \item Recoverability (both the normal techniques, plus Snapshot Isolation and 2-Phase Locking (and strict variant thereof))
 \end{todolist}