Code sample - 23c BOOLEAN data type with JDBC + SQL

java/jdbc-boolean/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>com.oracle.dev.jdbc</groupId>
+	<artifactId>jdbc-boolean</artifactId>
+	<version>1.0-SNAPSHOT</version>
+
+	<name>jdbc-boolean</name>
+	<description>jdbc-boolean</description>
+	<url>
+		https://medium.com/oracledevs/the-new-boolean-data-type-in-oracle-database-23c-with-the-oracle-jdbc-drivers-23c-21c-jdbc-f3252b200838</url>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<maven.compiler.source>21</maven.compiler.source>
+		<maven.compiler.target>21</maven.compiler.target>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>com.oracle.database.jdbc</groupId>
+			<artifactId>ojdbc11</artifactId>
+			<version>23.4.0.24.05</version>
+		</dependency>
+		<dependency>
+			<groupId>com.oracle.database.jdbc</groupId>
+			<artifactId>ucp</artifactId>
+			<version>23.4.0.24.05</version>
+		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-api</artifactId>
+			<version>2.0.7</version>
+		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-simple</artifactId>
+			<version>2.0.7</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<pluginManagement><!-- lock down plugins versions to avoid using Maven
+			defaults (may be moved to parent pom) -->
+			<plugins>
+				<plugin>
+					<artifactId>maven-clean-plugin</artifactId>
+					<version>3.1.0</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-site-plugin</artifactId>
+					<version>3.7.1</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-project-info-reports-plugin</artifactId>
+					<version>3.0.0</version>
+				</plugin>
+				<!-- see
+				http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
+				<plugin>
+					<artifactId>maven-resources-plugin</artifactId>
+					<version>3.0.2</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-compiler-plugin</artifactId>
+					<version>3.8.0</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-surefire-plugin</artifactId>
+					<version>2.22.1</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-jar-plugin</artifactId>
+					<version>3.0.2</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-install-plugin</artifactId>
+					<version>2.5.2</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-deploy-plugin</artifactId>
+					<version>2.8.2</version>
+				</plugin>
+			</plugins>
+		</pluginManagement>
+	</build>
+
+</project>

java/jdbc-boolean/sql/hq_employee.sql

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+CREATE TABLE HQ_EMPLOYEE
+(
+  "EMP_ID"   NUMBER NOT NULL ENABLE,
+  "NAME"    VARCHAR2(20 BYTE) DEFAULT NULL,
+  "ROLE"    VARCHAR2(20 BYTE) DEFAULT NULL,
+  "ACTIVE" BOOLEAN DEFAULT NULL,
+  PRIMARY KEY ("EMP_ID")
+);
+COMMIT;
+
+DESCRIBE HQ_EMPLOYEE;
+
+-- BOOLEAN = TRUE OR FALSE
+INSERT INTO HQ_EMPLOYEE (emp_id, name, role, active) VALUES (1, 'Juarez', 'Developer Evangelist', TRUE); 
+INSERT INTO HQ_EMPLOYEE (emp_id, name, role, active) VALUES (2, 'David', 'DevOps Architect', FALSE); 
+-- BOOLEAN = 1 OR 0
+INSERT INTO HQ_EMPLOYEE (emp_id, name, role, active) VALUES (3, 'Karl', 'Product Manager', 1); 
+INSERT INTO HQ_EMPLOYEE (emp_id, name, role, active) VALUES (4, 'Patrick', 'Software Architect', 0);
+-- BOOLEAN = 'Y' OR 'N'
+INSERT INTO HQ_EMPLOYEE (emp_id, name, role, active) VALUES (5, 'Robert', 'Software Engineer', 'Y');
+INSERT INTO HQ_EMPLOYEE (emp_id, name, role, active) VALUES (6, 'James', 'Program Manager', 'N');
+COMMIT;

java/jdbc-boolean/src/main/java/com/oracle/dev/jdbc/QueryWithBooleanDataTypeColumn.java

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+/*
+  Copyright (c) 2024, Oracle and/or its affiliates.
+
+  This software is dual-licensed to you under the Universal Permissive License
+  (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl or Apache License
+  2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
+  either license.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+     https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+package com.oracle.dev.jdbc;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import oracle.jdbc.pool.OracleDataSource;
+
+public class QueryWithBooleanDataTypeColumn {
+
+	public static void main(String[] args) {
+
+		OracleDataSource ods = null;
+		Connection conn = null;
+
+		try {
+
+			ods = new OracleDataSource();
+
+			// jdbc:oracle:thin@[hostname]:[port]/[DB service/name]
+			ods.setURL("jdbc:oracle:thin:@localhost:1521/FREEPDB1");
+			ods.setUser("[Username]");
+			ods.setPassword("[Password]");
+
+			conn = ods.getConnection();
+
+			// please check hq_employee.sql under the /sql directory
+			PreparedStatement stmt = conn.prepareStatement("SELECT * FROM HQ_EMPLOYEE WHERE ACTIVE");
+
+			ResultSet rslt = stmt.executeQuery();
+			StringBuilder sb = new StringBuilder();
+			while (rslt.next()) {
+				sb.append(rslt.getInt(1)).append("|").append(rslt.getString(2)).append("|").append(rslt.getString(3))
+						.append("|").append(rslt.getBoolean(4)).append("\n");
+
+			}
+
+			System.out.println(sb.toString());
+
+		} catch (SQLException e) {
+			e.printStackTrace();
+		}
+
+	}
+
+}