[DMDB] SQL basics completed

semester4/dmdb/glossary/basics.tex

@@ -1,16 +1,24 @@
 \newglossaryentry{declarative}{
-	name={declarative},
-	description={Describes \textit{what} to achieve, but not how}
+    name={declarative},
+    description={Describes \textit{what} to achieve, but not how}
 }
 \newglossaryentry{imperative}{
-	name={imperative},
-	description={Describes how to achieve something}
+    name={imperative},
+    description={Describes how to achieve something}
 }
 \newglossaryentry{record}{
-	name={record},
-	description={}
+    name={record},
+    description={}
 }
 \newglossaryentry{schema}{
-	name={schema},
-	description={A set of relations}
+    name={schema},
+    description={A set of relations}
+}
+\newglossaryentry{bag}{
+    name={bag},
+    description={A bag, or multiset, is a set, in which, (as is usual with sets) order does not matter, but duplicates are allowed}
+}
+\newglossaryentry{subquery}{
+    name={subquery},
+    description={Also Nested Query, a separate query that can be used in the \texttt{FROM} or \texttt{WHERE} clause of another query. See \ref{sec:nested-queries}}
 }