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‎data-platform/core-converged-db/Java_API_for_Property_Graphs/.gitignore

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target/
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!.mvn/wrapper/maven-wrapper.jar
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!**/src/main/**/target/
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!**/src/test/**/target/
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### IntelliJ IDEA ###
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.idea/modules.xml
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.idea/jarRepositories.xml
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.idea/compiler.xml
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.idea/libraries/
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*.iws
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*.iml
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*.ipr
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### Eclipse ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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### NetBeans ###
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/nbproject/private/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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build/
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!**/src/main/**/build/
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!**/src/test/**/build/
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### VS Code ###
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.vscode/
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### Mac OS ###
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.DS_Store

‎data-platform/core-converged-db/Java_API_for_Property_Graphs/README.md

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# Property Graph demo
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this code demonstrates:
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1. integration of Property Graph with SQL in Oracle Database 23c
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2. Java API for Property Graph Server
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It uses demonstration tables described in the following LiveLabs Workshop:
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"Analyze, Query, and Visualize Property Graphs with Oracle Database"
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https://apexapps.oracle.com/pls/apex/r/dbpm/livelabs/run-workshop?p210_wid=686&p210_wec=&session=108772142407826
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Requirements:
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1. Oracle Database 23c
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2. Database user account ( <username> ) with the privileges described in the mentioned LiveLabs Workshop
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3. Tables used in this workshop created in the mentioned schema
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4. Oracle Property Graph Server installation using user account
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# License
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Copyright (c) 2024 Oracle and/or its affiliates.
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Licensed under the Universal Permissive License (UPL), Version 1.0.
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See [LICENSE](https://github.com/oracle-devrel/technology-engineering/blob/main/LICENSE) for more details.

‎data-platform/core-converged-db/Java_API_for_Property_Graphs/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>pg.oracle</groupId>
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<artifactId>PGJava</artifactId>
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<version>1.0-SNAPSHOT</version>
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<properties>
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<maven.compiler.source>18</maven.compiler.source>
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<maven.compiler.target>18</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<repositories>
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<repository>
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<id>spoofax</id>
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<url>https://artifacts.metaborg.org/content/repositories/releases</url>
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</repository>
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</repositories>
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<dependencies>
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<dependency>
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<groupId>com.oracle.database.jdbc</groupId>
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<artifactId>ojdbc11</artifactId>
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<version>23.3.0.23.09</version>
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</dependency>
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<dependency>
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<groupId>com.oracle.database.graph</groupId>
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<artifactId>opg-client</artifactId>
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<version>24.1.0</version>
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</dependency>
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</dependencies>
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<dependency>
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<groupId>com.oracle.database.security</groupId>
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<artifactId>oraclepki</artifactId>
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<version>23.3.0.23.09</version>
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</dependency>
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<dependency>
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<groupId>com.oracle.database.graph</groupId>
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<artifactId>pgx-api</artifactId>
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<version>24.1.0</version>
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</dependency>
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<dependency>
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<groupId>com.oracle.database.graph</groupId>
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<artifactId>graph-query-ir</artifactId>
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<version>2.0.8.2</version>
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</dependency>
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</project>

‎data-platform/core-converged-db/Java_API_for_Property_Graphs/src/main/java/pg/oracle/Main.java

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package pg.oracle;
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/* property graph demo
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this code demonstrates:
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1. integration of Property Graph with SQL in Oracle Database 23c
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2. Java API for Property Graph Server
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It uses demonstration tables described in the following LiveLabs Workshop:
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"Analyze, Query, and Visualize Property Graphs with Oracle Database"
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https://apexapps.oracle.com/pls/apex/r/dbpm/livelabs/run-workshop?p210_wid=686&p210_wec=&session=108772142407826
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Requirements:
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1. Oracle Database 23c
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2. Database user account ( <username> ) with the privileges described in the mentioned LiveLabs Workshop
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3. Tables used in this workshop created in the mentioned schema
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4. Oracle Property Graph Server installation using user account
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*/
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import java.sql.*;
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import oracle.jdbc.pool.OracleDataSource;
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import oracle.pg.rdbms.GraphServer;
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import oracle.pgx.api.*;
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public class Main {
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private static String dbHost = "<database_hostname_or_op>";
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private static String pgxHost = "<graph_server_hostname_or_ip>";
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private static int dbPort = <listener_port_number_ususally_1521>;
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private static int pgxPort = <graph_server_port_number_usually_7007>;
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private static String dbService = "<database_service_name>";
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private static String username = "<username>";
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private static String password = "<password>";
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private static String pgName = "CUSTOMER_GRAPH";
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public static void SQLPGDemo() {
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try {
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OracleDataSource ds = new OracleDataSource();
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ds.setDriverType("thin");
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ds.setServerName(dbHost);
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ds.setServiceName(dbService);
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ds.setPortNumber(dbPort);
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ds.setUser(username);
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ds.setPassword(password);
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Connection con = ds.getConnection();
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System.out.println("Connected to the database");
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System.out.println("(Re)creating property graph "+pgName);
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Statement stmt = con.createStatement();
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stmt.execute("CREATE OR REPLACE PROPERTY GRAPH "+pgName+" VERTEX TABLES (\n" +
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" customer\n" +
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" , account\n" +
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" , merchant\n" +
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" )\n" +
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" EDGE TABLES (\n" +
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" account as account_edge\n" +
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" SOURCE KEY(id) REFERENCES account (id)\n" +
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" DESTINATION KEY(customer_id) REFERENCES customer (id)\n" +
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" LABEL owned_by PROPERTIES (id)\n" +
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" , parent_of as parent_of_edge \n" +
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" SOURCE KEY(customer_id_parent) REFERENCES customer (id)\n" +
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" DESTINATION KEY(customer_id_child) REFERENCES customer (id)\n" +
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" , purchased as puchased_edge \n" +
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" SOURCE KEY(account_id) REFERENCES account (id)\n" +
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" DESTINATION KEY(merchant_id) REFERENCES merchant (id)\n" +
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" , transfer as transfer_edge \n" +
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" SOURCE KEY(account_id_from) REFERENCES account (id)\n" +
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" DESTINATION KEY(account_id_to) REFERENCES account (id)\n" +
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" ) ");
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System.out.println("Graph (re)created succesfully.");
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ResultSet rset = stmt.executeQuery("SELECT account_no\n" +
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"FROM GRAPH_TABLE ( CUSTOMER_GRAPH MATCH (v1)-[transfer_edge]->{1,2}(v1)\n" +
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"columns (v1.account_no as account_no))");
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while (rset.next()) {
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System.out.println(rset.getString(1));
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}
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con.close();
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}
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catch (Exception e) {e.printStackTrace();}
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}
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public static void PGXDemo() {
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try {
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ServerInstance si = GraphServer.getInstance("https://"+pgxHost+":"+pgxPort,username,password.toCharArray());
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PgxSession ses = si.createSession("my-session");
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System.out.println("Connected to graph server");
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PgxGraph graph = ses.readGraphByName(username.toUpperCase(), pgName, GraphSource.PG_SQL);
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System.out.println("Graph loaded into Property Graph Server");
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PgqlResultSet rset = graph.queryPgql("SELECT a1.account_no AS a1_account\n" +
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" , t1.transfer_date AS t1_date\n" +
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" , t1.amount AS t1_amount\n" +
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" , a2.account_no AS a2_account\n" +
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" , t2.transfer_date AS t2_date\n" +
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" , t2.amount AS t2_amount\n" +
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"FROM MATCH (a1)-[t1:transfer_edge]->(a2)-[t2:transfer_edge]->(a1)\n" +
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"WHERE t1.transfer_date < t2.transfer_date");
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while (rset.next()) {
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System.out.println(rset.getString(1));
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}
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}
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catch (Exception e) {e.printStackTrace();}
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}
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public static void main(String[] args) {
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SQLPGDemo();
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PGXDemo();
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}
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}

‎data-platform/data-science-and-ml/README.md

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# Data Science and Machine Learning
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The Data Science and Machine Learning section covers the tools and services under the broader Oracle Artificial Intelligence / Machine Learning / Data Science platform targeted at Data Science personas.
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Reviewed: 2024.03.08
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# License
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Copyright (c) 2024 Oracle and/or its affiliates.

‎data-platform/data-science-and-ml/art-of-possible-demos/assets-by-demo/README.md

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‎data-platform/data-science-and-ml/oracle-data-science-service/GitHub-integration-for-OCI-Data-Science.pdf

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