diff --git a/Doc/Sda1/mongodb.xml b/Doc/Sda1/mongodb.xml
index d3499b74770c68a9ad11c012839c027a94f4589b..0092ffc5236e035bd209bad93d1bd377cb528b86 100644
--- a/Doc/Sda1/mongodb.xml
+++ b/Doc/Sda1/mongodb.xml
@@ -36,28 +36,233 @@
like:</para>
<programlisting language="json">{
- "lecture" : {
- "title" : "Software development 2",
- "prerequisites" : [113105, 113102]
- },
+ "title" : "Software development 1",
"studyCourse" : "MIB",
"programme" : "Bachelor",
"recommendedSemesters" : {
- "semester" : [4, 6, 7],
- " comment" : "Advanced topics"
+ "semester" : [1, 2]
+ },
+ "lecture_id" : 113105
+}
+
+{
+ "title" : "Software development 2",
+ "prerequisites" : [113105, 113102],
+ "studyCourse" : "MIB",
+ "programme" : "Bachelor",
+ "recommendedSemesters" : {
+ "semester" : [2, 3, 4]
},
"lecture_id" : 113213
-}</programlisting>
+}
- <para>Modify attribute values to create at least three
- different lectures.</para>
+{
+ "title" : "Object Recognition in Image and Video Data",
+ "studyCourse" : "CSM",
+ "programme" : "Master",
+ "recommendedSemesters" : {
+ "semester" : [1, 2, 3]
+ },
+ "lecture_id" : 143108
+ }</programlisting>
+ </listitem>
+
+ <listitem xml:id="sda1ItemMongoDefineIndex">
+ <para>Define a <link
+ xlink:href="https://docs.mongodb.com/manual/core/index-unique">unique
+ index</link> on the <property>lecture_id</property> property
+ and check whether the MongoDB Server rejects an attempt
+ inserting a duplicate key value.</para>
</listitem>
<listitem>
- <para/>
+ <para>List all index definitions.</para>
+ </listitem>
+
+ <listitem>
+ <para>Taking a glimpse at <link
+ xlink:href="https://docs.mongodb.com/getting-started/shell/query">Find
+ or Query Data with the mongo Shell</link> and craft the
+ following queries:</para>
+
+ <orderedlist>
+ <listitem>
+ <para>All lectures.</para>
+ </listitem>
+
+ <listitem>
+ <para>The (unique) lecture having
+ <property>lecture_id</property>=113213.</para>
+ </listitem>
+
+ <listitem>
+ <para>All lectures belonging to a <quote>Master</quote>
+ programme.</para>
+ </listitem>
+
+ <listitem>
+ <para>All lectures being recommended for semester
+ 4.</para>
+ </listitem>
+
+ <listitem>
+ <para>All lectures</para>
+ </listitem>
+ </orderedlist>
+ </listitem>
+
+ <listitem>
+ <para>Drop your index definition from step <xref
+ linkend="sda1ItemMongoDefineIndex"/>.</para>
</listitem>
</orderedlist>
</question>
+
+ <answer>
+ <orderedlist>
+ <listitem>
+ <para>Database server acknowledgement <coref
+ linkend="sda1ProgMongoInsertAck"/> upon insertion of three
+ lectures <coref linkend="sda1ProgMongoInsertS1"/>, <coref
+ linkend="sda1ProgMongoInsertS2"/> and <coref
+ linkend="sda1ProgMongoInsertS1"/> :</para>
+
+ <programlisting language="json">db.university.insertMany(
+[
+ {
+ "title" : "Software development 1",
+ "studyCourse" : "MIB",
+ "programme" : "Bachelor",
+ "recommendedSemesters" : {
+ "semester" : [1, 2]
+ },
+ "lecture_id" : 113105
+ }, {...
+ }
+]);
+
+{
+ "acknowledged" : true,<co xml:id="sda1ProgMongoInsertAck"/>
+ "insertedIds" : [
+ ObjectId("586942cb27e04cf209347687"), <co xml:id="sda1ProgMongoInsertS1"/>
+ ObjectId("586942cb27e04cf209347688"), <co xml:id="sda1ProgMongoInsertS2"/>
+ ObjectId("586942cb27e04cf209347689") <co xml:id="sda1ProgMongoInsertS3"/>
+ ]
+}</programlisting>
+ </listitem>
+
+ <listitem>
+ <para>Defining a <link
+ xlink:href="https://docs.mongodb.com/manual/core/index-unique">unique
+ index</link> on the <property>lecture_id</property>
+ property:</para>
+
+ <programlisting language="json">> db.university.createIndex( { "lecture_id": 1 }, { unique: true } )
+{
+ "createdCollectionAutomatically" : false,
+ "numIndexesBefore" : 1,
+ "numIndexesAfter" : 2,
+ "ok" : 1
+}</programlisting>
+
+ <para>Now a duplicate key value insert attempt gets flagged
+ as an error:</para>
+
+ <programlisting language="json">db.university.insert({
+ "title" : "Object Recognition in Image and Video Data",
+ ...
+ "lecture_id" : 143108 })
+WriteResult({
+ "nInserted" : 0,
+ "writeError" : {
+ "code" : 11000,
+ "errmsg" : "E11000 duplicate key error collection: test.university index:
+ lecture_id_1 dup key: { : 143108.0 }"
+ }
+})</programlisting>
+ </listitem>
+
+ <listitem>
+ <para>Obtaining a list of all index definitions:</para>
+
+ <programlisting language="json">> db.university.getIndexes()
+[
+ { <co linkends="sda1CalloutMongoListIndexes-1"
+ xml:id="sda1CalloutMongoListIndexes-1-co"/>
+ "v" : 2,
+ "key" : {
+ "_id" : 1
+ },
+ "name" : "_id_",
+ "ns" : "test.university"
+ },
+ { <co linkends="sda1CalloutMongoListIndexes-2"
+ xml:id="sda1CalloutMongoListIndexes-2-co"/>
+ "v" : 2,
+ "unique" : true,
+ "key" : {
+ "lecture_id" : 1
+ },
+ "name" : "lecture_id_1",
+ "ns" : "test.university"
+ }
+]
+></programlisting>
+
+ <calloutlist>
+ <callout arearefs="sda1CalloutMongoListIndexes-1-co"
+ xml:id="sda1CalloutMongoListIndexes-1">
+ <para>First index being automatically generated by
+ MogoDB.</para>
+ </callout>
+
+ <callout arearefs="sda1CalloutMongoListIndexes-2-co"
+ xml:id="sda1CalloutMongoListIndexes-2">
+ <para>Custom key definition from previous step.</para>
+ </callout>
+ </calloutlist>
+ </listitem>
+
+ <listitem>
+ <para>Taking a glimpse at <link
+ xlink:href="https://docs.mongodb.com/getting-started/shell/query">Find
+ or Query Data with the mongo Shell</link> and craft the
+ following queries:</para>
+
+ <orderedlist>
+ <listitem>
+ <para>All lectures.</para>
+ </listitem>
+
+ <listitem>
+ <para>The (unique) lecture having
+ <property>lecture_id</property>=113213.</para>
+ </listitem>
+
+ <listitem>
+ <para>All lectures belonging to a <quote>Master</quote>
+ programme.</para>
+ </listitem>
+
+ <listitem>
+ <para>All lectures being recommended for semester
+ 4.</para>
+ </listitem>
+
+ <listitem>
+ <para>All lectures</para>
+ </listitem>
+ </orderedlist>
+ </listitem>
+
+ <listitem>
+ <para>Dropping a custom index:</para>
+
+ <programlisting language="json">> db.university.dropIndex( { "lecture_id": 1 } )
+{ "nIndexesWas" : 2, "ok" : 1 }</programlisting>
+ </listitem>
+ </orderedlist>
+ </answer>
</qandaentry>
</qandadiv>
</qandaset>