diff --git a/source/src/main/java/one/nem/lacerta/source/database/dao/Document.java b/source/src/main/java/one/nem/lacerta/source/database/dao/Document.java
deleted file mode 100644
index f0c7f646..00000000
--- a/source/src/main/java/one/nem/lacerta/source/database/dao/Document.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package one.nem.lacerta.source.database.dao;
-
-public interface Document {
-}
diff --git a/source/src/main/java/one/nem/lacerta/source/database/dao/DocumentDao.java b/source/src/main/java/one/nem/lacerta/source/database/dao/DocumentDao.java
new file mode 100644
index 00000000..ab875d3a
--- /dev/null
+++ b/source/src/main/java/one/nem/lacerta/source/database/dao/DocumentDao.java
@@ -0,0 +1,27 @@
+package one.nem.lacerta.source.database.dao;
+
+import androidx.room.Dao;
+import androidx.room.Query;
+
+import java.util.List;
+
+import one.nem.lacerta.source.database.entity.Document;
+
+
+@Dao
+public interface DocumentDao {
+
+    @Query("SELECT * FROM document WHERE id = :id")
+    Document findById(String id);
+
+    @Query("SELECT * FROM document")
+    List<Document> findAll();
+
+    @Query("SELECT * FROM document WHERE id IN (:ids)")
+
+    List<Document> findByIds(List<String> ids);
+
+    // WIP
+    // TODO-rca: Insert, Update, Delete
+
+}