DB example

Author: kks32

examples/db.ipynb

@@ -10,7 +10,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "id": "06f33aaa",
    "metadata": {},
    "outputs": [],
@@ -29,10 +29,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "id": "abc973d4",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Initializing DSClient...\n",
+      "Authentication successful.\n",
+      "DatabaseAccessor initialized. Connections will be created on first access.\n",
+      "DSClient initialized.\n"
+     ]
+    }
+   ],
    "source": [
     "# Authenticate & Initialize Client\n",
     "try:\n",
@@ -46,10 +57,29 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "id": "3c1d34e8",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "Creating database convenience variables...\n",
+      "First access to 'ngl', initializing DSDatabase...\n",
+      "Creating SQLAlchemy engine for database 'sjbrande_ngl_db' (ngl)...\n",
+      "Engine for 'ngl' created.\n",
+      "First access to 'vp', initializing DSDatabase...\n",
+      "Creating SQLAlchemy engine for database 'sjbrande_vpdb' (vp)...\n",
+      "Engine for 'vp' created.\n",
+      "First access to 'eq', initializing DSDatabase...\n",
+      "Creating SQLAlchemy engine for database 'post_earthquake_recovery' (eq)...\n",
+      "Engine for 'eq' created.\n",
+      "Database variables (ngl, vp, eq) created.\n"
+     ]
+    }
+   ],
    "source": [
     "# Create Convenience Variables for Databases (Optional but meets user request)\n",
     "print(\"\\nCreating database convenience variables...\")\n",
@@ -87,25 +117,27 @@
     "    except Exception as e:\n",
     "        print(f\"\\nAn error occurred during NGL database query: {e}\")\n",
     "else:\n",
-    "    print(\"\\nSkipping NGL query as 'ngl' variable is not available.\")\n",
-    "\n",
-    "if vp:  # Check if vp variable was successfully created\n",
-    "    try:\n",
-    "        print(\"\\nQuerying VP Database using 'vp' variable (as dict)...\")\n",
-    "        sql_vp = \"SELECT vp_id, vp_name FROM viewports LIMIT 3\"\n",
-    "        dict_vp = vp.read_sql(sql_vp, output_type=\"dict\")\n",
-    "        print(\"--- VP Data (List of Dicts) ---\")\n",
-    "        print(json.dumps(dict_vp, indent=2))\n",
-    "    except Exception as e:\n",
-    "        print(f\"\\nAn error occurred during VP database query: {e}\")\n",
-    "else:\n",
-    "    print(\"\\nSkipping VP query as 'vp' variable is not available.\")"
+    "    print(\"\\nSkipping NGL query as 'ngl' variable is not available.\")"
    ]
   }
  ],
  "metadata": {
+  "kernelspec": {
+   "display_name": "dapi-ptztLUqK-py3.13",
+   "language": "python",
+   "name": "python3"
+  },
   "language_info": {
-   "name": "python"
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.13.3"
   }
  },
  "nbformat": 4,