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## Java - Oracle Developers on Medium.com
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[Invoking Stored Procedures with JDBC CallableStatements](https://medium.com/oracledevs/getting-started-with-invoking-stored-procedures-using-jdbc-and-callablestatement-6a247fd1957a)
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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" 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>com.oracle.dev.jdbc</groupId>
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<artifactId>jdbc-callablestatement</artifactId>
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<version>1.0-SNAPSHOT</version>
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<name>jdbc-callablestatement</name>
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<description>A simple jdbc-callablestatement.</description>
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<!-- FIXME change it to the project's website -->
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<url>http://www.example.com</url>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.compiler.source>19</maven.compiler.source>
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<maven.compiler.target>19</maven.compiler.target>
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</properties>
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<dependencies>
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<!-- Oracle JDBC JARs -->
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<dependency>
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<groupId>com.oracle.database.jdbc</groupId>
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<artifactId>ojdbc8-production</artifactId>
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<version>21.7.0.0</version>
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<type>pom</type>
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</dependency>
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</dependencies>
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<build>
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<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
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<plugins>
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<plugin>
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<artifactId>maven-clean-plugin</artifactId>
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<version>3.1.0</version>
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</plugin>
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<plugin>
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<artifactId>maven-site-plugin</artifactId>
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<version>3.7.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-project-info-reports-plugin</artifactId>
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<version>3.0.0</version>
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</plugin>
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<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
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<plugin>
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<artifactId>maven-resources-plugin</artifactId>
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<version>3.0.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.8.0</version>
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</plugin>
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<plugin>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>2.22.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-jar-plugin</artifactId>
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<version>3.0.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-install-plugin</artifactId>
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<version>2.5.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-deploy-plugin</artifactId>
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<version>2.8.2</version>
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</plugin>
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</plugins>
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</pluginManagement>
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</build>
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<reporting>
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<plugins>
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<plugin>
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<artifactId>maven-project-info-reports-plugin</artifactId>
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</plugin>
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</plugins>
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</reporting>
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</project>
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CREATE USER JDBCSP_USER IDENTIFIED BY <JDBCSP_USER_PASSWORD>;
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GRANT DWROLE TO JDBCSP_USER;
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GRANT CREATE SESSION TO JDBCSP_USER;
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GRANT UNLIMITED TABLESPACE TO JDBCSP_USER;
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CREATE TABLE EMPLOYEE
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(
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"EMP_ID" NUMBER NOT NULL ENABLE,
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"NAME" VARCHAR2(20 BYTE) DEFAULT NULL,
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"ROLE" VARCHAR2(20 BYTE) DEFAULT NULL,
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"DEPARTMENT" VARCHAR2(20 BYTE) DEFAULT NULL,
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"BUILDING" VARCHAR2(20 BYTE) DEFAULT NULL,
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PRIMARY KEY ("EMP_ID")
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);
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CREATE OR REPLACE PROCEDURE INSERT_EMPLOYEE_PRC
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(
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in_emp_id IN EMPLOYEE.EMP_ID%TYPE,
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in_name IN EMPLOYEE.NAME%TYPE,
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in_role IN EMPLOYEE.ROLE%TYPE,
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in_department IN EMPLOYEE.DEPARTMENT%TYPE,
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in_building IN EMPLOYEE.BUILDING%TYPE,
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out_result OUT VARCHAR2)
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AS
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BEGIN
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INSERT INTO EMPLOYEE (EMP_ID, NAME, ROLE, DEPARTMENT, BUILDING)
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VALUES (in_emp_id, in_name, in_role, in_department, in_building);
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COMMIT;
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out_result := 'TRUE';
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EXCEPTION
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WHEN OTHERS THEN
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out_result := 'FALSE';
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ROLLBACK;
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END;
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GRANT EXECUTE ON INSERT_EMPLOYEE_PRC TO JDBCSP_USER;
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/*
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Copyright (c) 2021, 2022, Oracle and/or its affiliates.
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This software is dual-licensed to you under the Universal Permissive License
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(UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl or Apache License
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2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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either license.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package com.oracle.dev.jdbc;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.Properties;
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/**
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* <p>
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* Configuration for connecting code samples to an Oracle Database instance.
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* </p>
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*/
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public class DatabaseConfig {
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private static final Properties CONFIG = new Properties();
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static {
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try {
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var fileStream = Files
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.newInputStream(Path.of("C:\\java-projects\\jdbc-callablestatement\\src\\main\\resources\\config.properties"));
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CONFIG.load(fileStream);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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private static final String DB_USER = CONFIG.getProperty("DB_USER");
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private static final String DB_URL = CONFIG.getProperty("DB_URL");
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private static final String DB_PASSWORD = CONFIG.getProperty("DB_PASSWORD");
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private static final String DB_SCHEMA = CONFIG.getProperty("DB_SCHEMA");
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public static String getDbUser() {
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return DB_USER;
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}
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public static String getDbUrl() {
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return DB_URL;
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}
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public static String getDbPassword() {
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return DB_PASSWORD;
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}
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public static String getDbSchema() {
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return DB_SCHEMA;
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}
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}
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/*
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Copyright (c) 2021, 2022, Oracle and/or its affiliates.
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This software is dual-licensed to you under the Universal Permissive License
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(UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl or Apache License
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2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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either license.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package com.oracle.dev.jdbc;
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import java.sql.CallableStatement;
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import java.sql.SQLException;
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import java.util.Properties;
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import java.util.concurrent.ThreadLocalRandom;
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import oracle.jdbc.OracleConnection;
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import oracle.jdbc.pool.OracleDataSource;
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public class JDBCStoredProcEmployee {
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private final static String DB_URL = DatabaseConfig.getDbUrl();
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private final static String DB_USER = DatabaseConfig.getDbUser();
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private final static String DB_PASSWORD = DatabaseConfig.getDbPassword();
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private static OracleConnection con;
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private static CallableStatement stmt;
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public static void main(String[] args) {
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System.out.println("--------------------");
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System.out.println("Input parameters");
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System.out.println("--------------------");
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int id = ThreadLocalRandom.current().nextInt();
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System.out.println("ID: " + id);
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String name = "Duke";
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System.out.println("Name: " + name);
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String role = "Mascott";
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System.out.println("Role: " + role);
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String department = "Dev Evangelism";
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System.out.println("Department: " + department);
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String building = "Block A";
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System.out.println("Building: " + building);
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try {
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Properties info = new Properties();
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info.put(OracleConnection.CONNECTION_PROPERTY_USER_NAME, DB_USER);
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info.put(OracleConnection.CONNECTION_PROPERTY_PASSWORD, DB_PASSWORD);
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info.put(OracleConnection.CONNECTION_PROPERTY_FAN_ENABLED, false);
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// JDBC datasource
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OracleDataSource ods = new OracleDataSource();
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ods.setURL(DB_URL);
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ods.setConnectionProperties(info);
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// JDBC connection
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con = (OracleConnection) ods.getConnection();
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// CallableStatement
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// https://docs.oracle.com/en/java/javase/19/docs/api/java.sql/java/sql/CallableStatement.html
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stmt = con.prepareCall("{call ADMIN.INSERT_EMPLOYEE_PRC(?,?,?,?,?,?)}");
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// set IN parameters
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stmt.setInt(1, id);
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stmt.setString(2, name);
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stmt.setString(3, role);
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stmt.setString(4, department);
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stmt.setString(5, building);
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// register OUT parameter
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stmt.registerOutParameter(6, java.sql.Types.VARCHAR);
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stmt.executeUpdate();
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// get OUT parameter
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String result = stmt.getString(6);
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System.out.println("--------------------\n");
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System.out.println("Output parameter");
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System.out.println("--------------------");
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System.out.println("Procedured executed : " + result);
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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try {
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stmt.close();
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con.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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}
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# https://docs.oracle.com/en/cloud/paas/autonomous-database/adbsa/connect-jdbc-thin-wallet.html
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# jdbc:oracle:thin:@dbname_tpurgent?TNS_ADMIN=<PATH_TO_YOUR_WALLET>
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DB_URL=jdbc:oracle:thin:@callstmtdb_tpurgent?TNS_ADMIN=<PATH_TO_YOUR_WALLET>
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DB_USER=<DB_USER>
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DB_PASSWORD=<DB_PASSWORD>
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DB_SCHEMA=<DB_SCHEMA>

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