Write first data ingestion and SQL support

src/data/database_interaction.py

@@ -0,0 +1,13 @@
+import psycopg2
+
+conn = psycopg2.connect(
+    dbname="options_db",
+    user="quant_user",
+    password="strong_password",
+    host="144.91.73.49",
+    port="5432"
+)
+
+cursor = conn.cursor()
+cursor.execute("SELECT * FROM underlyings;")
+print(cursor.fetchall())