diff --git a/common/birdxplorer_common/storage.py b/common/birdxplorer_common/storage.py
index 6c34ed0..df77fc4 100644
--- a/common/birdxplorer_common/storage.py
+++ b/common/birdxplorer_common/storage.py
@@ -224,7 +224,7 @@ class RowPostRecord(Base):
 class RowPostMediaRecord(Base):
     __tablename__ = "row_post_media"
 
-    media_key: Mapped[String] = mapped_column(primary_key=True)
+    media_key: Mapped[String] = mapped_column(primary_key=True, unique=True)
 
     url: Mapped[String] = mapped_column(nullable=False)
     type: Mapped[MediaType] = mapped_column(nullable=False)
diff --git a/etl/pyproject.toml b/etl/pyproject.toml
index 9c31ed1..a32d049 100644
--- a/etl/pyproject.toml
+++ b/etl/pyproject.toml
@@ -30,7 +30,8 @@ dependencies = [
     "pytest",
     "prefect",
     "stringcase",
-    "openai"
+    "openai",
+    "boto3",
 ]
 
 [project.urls]
diff --git a/etl/src/birdxplorer_etl/extract.py b/etl/src/birdxplorer_etl/extract.py
index 5a276a4..ee9b306 100644
--- a/etl/src/birdxplorer_etl/extract.py
+++ b/etl/src/birdxplorer_etl/extract.py
@@ -168,11 +168,16 @@ def extract_data(sqlite: Session, postgresql: Session):
             lang=post["data"]["lang"],
         )
         postgresql.add(row_post)
-        postgresql.commit()
+
+        try:
+            postgresql.commit()
+        except Exception as e:
+            logging.error(f"Error: {e}")
+            postgresql.rollback()
 
         media_recs = [
             RowPostMediaRecord(
-                media_key=m["media_key"],
+                media_key=f"{m['media_key']}-{post['data']['id']}",
                 type=m["type"],
                 url=m.get("url") or (m["variants"][0]["url"] if "variants" in m and m["variants"] else ""),
                 width=m["width"],
@@ -186,15 +191,25 @@ def extract_data(sqlite: Session, postgresql: Session):
         if "entities" in post["data"] and "urls" in post["data"]["entities"]:
             for url in post["data"]["entities"]["urls"]:
                 if "unwound_url" in url:
-                    post_url = RowPostEmbedURLRecord(
-                        post_id=post["data"]["id"],
-                        url=url["url"] if url["url"] else None,
-                        expanded_url=url["expanded_url"] if url["expanded_url"] else None,
-                        unwound_url=url["unwound_url"] if url["unwound_url"] else None,
+                    is_urlExist = (
+                        postgresql.query(RowPostEmbedURLRecord)
+                        .filter(RowPostEmbedURLRecord.post_id == post["data"]["id"])
+                        .filter(RowPostEmbedURLRecord.url == url["url"])
+                        .first()
                     )
-                    postgresql.add(post_url)
+                    if is_urlExist is None:
+                        post_url = RowPostEmbedURLRecord(
+                            post_id=post["data"]["id"],
+                            url=url["url"] if url["url"] else None,
+                            expanded_url=url["expanded_url"] if url["expanded_url"] else None,
+                            unwound_url=url["unwound_url"] if url["unwound_url"] else None,
+                        )
+                        postgresql.add(post_url)
         note.row_post_id = tweet_id
-        postgresql.commit()
-        continue
+        try:
+            postgresql.commit()
+        except Exception as e:
+            logging.error(f"Error: {e}")
+            postgresql.rollback()
 
     return
diff --git a/etl/src/birdxplorer_etl/lib/sqlite/init.py b/etl/src/birdxplorer_etl/lib/sqlite/init.py
index 21c082a..253eb54 100644
--- a/etl/src/birdxplorer_etl/lib/sqlite/init.py
+++ b/etl/src/birdxplorer_etl/lib/sqlite/init.py
@@ -11,6 +11,7 @@
     RowUserRecord,
     RowPostEmbedURLRecord,
     RowNoteStatusRecord,
+    RowPostMediaRecord,
 )
 
 
@@ -53,6 +54,9 @@ def init_postgresql():
     if not inspect(engine).has_table("row_post_embed_urls"):
         logging.info("Creating table post_embed_urls")
         RowPostEmbedURLRecord.metadata.create_all(engine)
+    if not inspect(engine).has_table("row_post_media"):
+        logging.info("Creating table post_media")
+        RowPostMediaRecord.metadata.create_all(engine)
 
     Session = sessionmaker(bind=engine)
 
diff --git a/etl/src/birdxplorer_etl/load.py b/etl/src/birdxplorer_etl/load.py
index 5412d7d..7eef8f9 100644
--- a/etl/src/birdxplorer_etl/load.py
+++ b/etl/src/birdxplorer_etl/load.py
@@ -1,6 +1,35 @@
+import boto3
 import logging
+import settings
+from datetime import datetime
+
+s3 = boto3.client("s3", region_name="ap-northeast-1")
 
 
 def load_data():
-    logging.info("Loading data")
-    return
+
+    if settings.S3_BUCKET_NAME:
+        bucket_name = settings.S3_BUCKET_NAME
+        current_time = datetime.now().strftime("%Y-%m-%d %H:%M")
+        objectPrefix = f"{current_time}/"
+
+        fileNames = [
+            "./data/transformed/media.csv",
+            "./data/transformed/note_topic_association.csv",
+            "./data/transformed/note.csv",
+            "./data/transformed/post_link_association.csv",
+            "./data/transformed/post_link.csv",
+            "./data/transformed/post_media_association.csv",
+            "./data/transformed/post.csv",
+            "./data/transformed/topic.csv",
+            "./data/transformed/user.csv",
+        ]
+
+        for fileName in fileNames:
+            try:
+                s3.upload_file(fileName, bucket_name, f"{objectPrefix}{fileName.split('/')[-1]}")
+                logging.info(f"Successfully uploaded {fileName} to S3")
+            except FileNotFoundError:
+                logging.error(f"{fileName} not found")
+            except Exception as e:
+                logging.error(f"Failed to upload {fileName} to S3: {e}")
diff --git a/etl/src/birdxplorer_etl/settings.py b/etl/src/birdxplorer_etl/settings.py
index c775af3..370bbdd 100644
--- a/etl/src/birdxplorer_etl/settings.py
+++ b/etl/src/birdxplorer_etl/settings.py
@@ -19,3 +19,5 @@
 TARGET_NOTE_ESTIMATE_TOPIC_END_UNIX_MILLISECOND = os.getenv("TARGET_NOTE_ESTIMATE_TOPIC_END_UNIX_MILLISECOND")
 
 USE_DUMMY_DATA = os.getenv("USE_DUMMY_DATA", "False") == "True"
+
+S3_BUCKET_NAME = os.getenv("S3_BUCKET_NAME")