diff --git a/core/database.py b/core/database.py
index 714045e..bcddad6 100644
--- a/core/database.py
+++ b/core/database.py
@@ -152,6 +152,34 @@ class DatabaseManager:
         conn = self.get_connection()
         return conn.executemany(query, parameters)
     
+    def fetchall(self, query: str, parameters: tuple = ()) -> List[sqlite3.Row]:
+        """
+        Execute query and fetch all results.
+        
+        Args:
+            query: SQL query string
+            parameters: Query parameters
+            
+        Returns:
+            List of row objects
+        """
+        cursor = self.execute(query, parameters)
+        return cursor.fetchall()
+    
+    def fetchone(self, query: str, parameters: tuple = ()) -> Optional[sqlite3.Row]:
+        """
+        Execute query and fetch first result.
+        
+        Args:
+            query: SQL query string
+            parameters: Query parameters
+            
+        Returns:
+            Single row or None
+        """
+        cursor = self.execute(query, parameters)
+        return cursor.fetchone()
+    
     def commit(self) -> None:
         """Commit current transaction."""
         if self._connection: