diff --git a/.devcontainer/connections.toml b/.devcontainer/connections.toml
index 0acd64c3..33718e62 100644
--- a/.devcontainer/connections.toml
+++ b/.devcontainer/connections.toml
@@ -1,7 +1,7 @@
 # Can override the default connection name with an environment variable as follows
 #export SNOWFLAKE_DEFAULT_CONNECTION_NAME="default"
 
-[default]
+[connections.default]
 account = "myaccount"
 user = "myuser"
 password = "mypassword"
diff --git a/.devcontainer/create_session.py b/.devcontainer/create_session.py
new file mode 100644
index 00000000..463c8d10
--- /dev/null
+++ b/.devcontainer/create_session.py
@@ -0,0 +1,17 @@
+from snowflake.snowpark import Session
+
+connection_parameters = {
+    "account": "urxxlpr-dp02760",
+    "user": "zeal041",
+    "password": "Snowflake20021025",
+    "role": "HOL_ROLE",
+    "warehouse": "HOL_WH",
+    "database": "HOL_DB",
+    "schema": "ANALYTICS"
+}
+
+session = Session.builder.configs(connection_parameters).create()
+print("✅ セッション作成成功")
+
+df = session.sql("SELECT CURRENT_USER(), CURRENT_ROLE(), CURRENT_DATABASE(), CURRENT_SCHEMA()").collect()
+print(df)
diff --git a/steps/02_load_raw.py b/steps/02_load_raw.py
index 025c3702..fd34f015 100644
--- a/steps/02_load_raw.py
+++ b/steps/02_load_raw.py
@@ -69,7 +69,28 @@ def validate_raw_tables(session):
 
 # For local debugging
 if __name__ == "__main__":
-    # Create a local Snowpark session
-    with Session.builder.getOrCreate() as session:
-        load_all_raw_tables(session)
+    from snowflake.snowpark import Session
+
+    connection_parameters = {
+        "account": "urxxlpr-dp02760",
+        "user": "zeal041",
+        "password": "Snowflake20021025",
+        "role": "HOL_ROLE",
+        "warehouse": "HOL_WH",
+        "database": "HOL_DB",
+        "schema": "ANALYTICS"
+    }
+
+    #session = Session.builder.configs(connection_parameters).create()
+
+
+# 以降、session を使って処理
+#df = session.table("RAW_WEATHER_DATA")
+#df.show()
+
+# 最後にセッションを閉じる（任意）
+#session.close()
+
+   # with Session.builder.getOrCreate() as session:
+      #  load_all_raw_tables(session)
 #        validate_raw_tables(session)