diff --git a/Klausuren/Sda1/2018Winter/Exam/Schema/schema.sql b/Klausuren/Sda1/2018Winter/Exam/Schema/schema.sql
index fc0b21311ed37a80b3faad00a354888cf5b065c7..d5542919e254d01a482839db404ac0b64072dca2 100644
--- a/Klausuren/Sda1/2018Winter/Exam/Schema/schema.sql
+++ b/Klausuren/Sda1/2018Winter/Exam/Schema/schema.sql
@@ -5,19 +5,41 @@ DROP TABLE IF EXISTS Section;
-- Read the exercise's documentation and add your schema here. You may
-- re-use subsequent INSERT statements or adapt them to your schema.
--- CREATE TABLE ...
+CREATE TABLE Section(
-INSERT INTO Section VALUES ('categories', 'XML Document categories', NULL, 'new', 1);
-INSERT INTO Section VALUES ('wellFormed', 'Well-formed documents', 'categories' ,NULL, 2);
+ id CHAR(255) NOT NULL PRIMARY KEY,
+ title VARCHAR(255) NOT NULL,
+ parent CHAR(255) NULL REFERENCES Section,
+ revisionflag CHAR(7) NULL,
+ orderNo INT NOT NULL GENERATED ALWAYS AS IDENTITY UNIQUE,
+ CHECK(revisionflag IN ('new', 'changed', 'deleted'))
+);
-INSERT INTO Para VALUES (
- 'categories', 'Documents belonging to this category do not adhere to any schema.','changed', 3);
+CREATE TABLE Para (
+ parent CHAR(255) NOT NULL REFERENCES Section,
+ para TEXT,
+ revisionflag CHAR(7) NULL,
+ orderNo INT NOT NULL GENERATED ALWAYS AS IDENTITY UNIQUE,
+ CHECK(revisionflag IN ('new', 'changed', 'deleted'))
+);
+INSERT INTO Section (id, title, parent, revisionflag) VALUES ('categories', 'XML Document categories', NULL, 'new');
+INSERT INTO Section (id, title, parent, revisionflag) VALUES ('wellFormed', 'Well-formed documents', 'categories' ,NULL);
-INSERT INTO Section VALUES ('valid', 'Valid documents', 'categories', NULL, 4);
-INSERT INTO Para VALUES ('valid', 'Valid documents require a schema.', 'changed', 5);
-INSERT INTO Para VALUES ('valid', 'Common standards are DTD, XML Schema and Relax-NG.',NULL, 6);
+INSERT INTO Para (parent, para, revisionflag) VALUES (
+ 'categories', 'Documents belonging to this category do not adhere to any schema.','changed');
-INSERT INTO Section VALUES ('api', 'Available APIs', NULL, 'deleted', 7);
-INSERT INTO Para VALUES ('api', 'We introduce SAX and DOM here.', NULL, 8);
-INSERT INTO Para VALUES ('api', 'Some APIs offer multiple language bindings.', NULL, 9);
\ No newline at end of file
+
+INSERT INTO Section (id, title, parent, revisionflag) VALUES ('valid', 'Valid documents', 'categories', NULL);
+INSERT INTO Para (parent, para, revisionflag) VALUES ('valid', 'Valid documents require a schema.', 'changed');
+INSERT INTO Para (parent, para, revisionflag) VALUES ('valid', 'Common standards are DTD, XML Schema and Relax-NG.',NULL);
+
+INSERT INTO Section (id, title, parent, revisionflag) VALUES ('api', 'Available APIs', NULL, 'deleted');
+INSERT INTO Para (parent, para, revisionflag) VALUES ('api', 'We introduce SAX and DOM here.', NULL);
+INSERT INTO Para(parent, para, revisionflag) VALUES ('api', 'Some APIs offer multiple language bindings.', NULL);
+
+SELECT * FROM Section;
+
+
+
+SELECT * FROM Para;
\ No newline at end of file
diff --git a/Klausuren/Sda1/2018Winter/Exam/src/main/java/de/hdm_stuttgart/mi/sda1/Book2Rdbms.java b/Klausuren/Sda1/2018Winter/Exam/src/main/java/de/hdm_stuttgart/mi/sda1/Book2Rdbms.java
index fda3f75abb0b79c8de816a80114c54719d91979b..1ecdc116fa3bca048a7b56228c6ba708605efe03 100644
--- a/Klausuren/Sda1/2018Winter/Exam/src/main/java/de/hdm_stuttgart/mi/sda1/Book2Rdbms.java
+++ b/Klausuren/Sda1/2018Winter/Exam/src/main/java/de/hdm_stuttgart/mi/sda1/Book2Rdbms.java
@@ -1,64 +1,57 @@
package de.hdm_stuttgart.mi.sda1;
import org.jdom2.*;
-import org.jdom2.filter.ElementFilter;
import org.jdom2.input.SAXBuilder;
-import org.jdom2.xpath.XPathExpression;
-import org.jdom2.xpath.XPathFactory;
import java.io.File;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
+import java.sql.PreparedStatement;
import java.sql.SQLException;
-public class Book2Rdbms {
+public class Book2Rdbms implements AutoCloseable {
- private Connection conn;
- private Document doc;
+ private Connection conn;
- public Book2Rdbms() {
- try {
- conn = DriverManager.getConnection(
- "jdbc:postgresql://localhost/hdm", "hdmuser", "XYZ");
- } catch (SQLException e) {
- System.err.println("Unable to establish connection: " + e);
- System.exit(1);
- }
+ private Element book;
- final SAXBuilder builder = new SAXBuilder();
- try {
- doc = builder.build(new File("Schema/sampledata.xml"));
- //getClass().getClassLoader().getResource("Schema/sampledata.xml"));
- } catch (JDOMException e) {
- e.printStackTrace();
- System.err.println("Unable to parse input: " + e);
- System.exit(1);
- } catch (IOException e) {
- e.printStackTrace();
- System.err.println("Unable to read input: " + e);
- System.exit(1);
- }
- }
-
- public void execute() {
-
- final XPathExpression<Element> xpathSearchPara =
- XPathFactory.instance().compile(
- "//para" ,
- new ElementFilter(),
- null ,
- Namespace.getNamespace(null));
+ public Book2Rdbms(
+) {
+ try {
+ conn = DriverManager.getConnection(
+ "jdbc:postgresql://localhost/hdm", "hdmuser", "XYZ");
- System.out.println("Java stream:");
- xpathSearchPara.evaluate(doc).stream().
- map(Element::getText).forEach(System.out::println);
-
- System.out.println("\nSimple loop:");
- for (final Element e: xpathSearchPara.evaluate(doc)) {
- System.out.println(e.getText());
- }
+ } catch (SQLException e) {
+ System.err.println("Unable to establish connection: " + e);
+ System.exit(1);
+ }
+ final SAXBuilder builder = new SAXBuilder();
+ try {
+ book = builder.build(new File("Schema/sampledata.xml")).getRootElement();
+ } catch (JDOMException e) {
+ e.printStackTrace();
+ System.err.println("Unable to parse input: " + e);
+ System.exit(1);
+ } catch (IOException e) {
+ e.printStackTrace();
+ System.err.println("Unable to read input: " + e);
+ System.exit(1);
+ }
+ }
+
+ public void execute() {
+ System.out.println(book.getChild("title"));
+ }
+
+ @Override
+ public void close() {
+ try {
+ conn.close();
+ } catch (final SQLException e) {
+ e.printStackTrace();
}
-}
+ }
+}
\ No newline at end of file