Add examples to use Single Query Loading.

Query by Id works via the repository.

Query derivation doesn't since it side steps the DataAccessStrategy.

Closes #675

jdbc/singlequeryloading/pom.xml

@@ -0,0 +1,41 @@
+<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>singlequeryloading</artifactId>
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+    </properties>
+
+    <parent>
+        <groupId>org.springframework.data.examples</groupId>
+        <artifactId>spring-data-jdbc-examples</artifactId>
+        <version>2.0.0.BUILD-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+
+    <name>Spring Data JDBC - Demonstration of Single Query Loading</name>
+    <description>Sample project demonstrating Single Query Loading with Spring Data JDBC</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jdbc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-test</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>postgresql</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+        </dependency>
+    </dependencies>
+</project>