issue # ExampleEntity 파일 작성

src/main/java/com/baekyangdan/scheduler/entity/ExampleEntity.java

@@ -0,0 +1,28 @@
+import lombok.*;
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+@Builder
+@Entity
+@TABLE(name = "example")
+public class Example {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private String id;
+
+    @Column(nullable = true, length = 50)
+    private String username;
+
+    @Builder.Default
+    @Column(nullable = false)
+    private Boolean isDeleted = false;
+
+    @CreationTimestamp
+    private LocalDateTime createdAt;
+
+    public void delete() {
+        this.isDeleted = true;
+    }
+}