Refactor restore_data notebook to improve clarity and update table restoration command

Author: max-ostapenko

workspace/restore_data.ipynb

@@ -1,80 +1,81 @@
 {
-  "cells": [
-    {
-      "cell_type": "code",
-      "source": [
-        "# sql_engine: bigquery\n",
-        "# output_variable: df\n",
-        "# start _sql\n",
-        "_sql = \"\"\"\n",
-        "## [Restore deleted dataset](https://docs.cloud.google.com/bigquery/docs/restore-deleted-datasets#restore_a_dataset)\n",
-        "UNDROP SCHEMA httparchive.crawl;\n",
-        "\"\"\" # end _sql\n",
-        "from google.colab.sql import bigquery as _bqsqlcell\n",
-        "df = _bqsqlcell.run(_sql)\n",
-        "df"
-      ],
-      "metadata": {
-        "colab_type": "sql",
-        "id": "XKFLLrG_ZlzC"
-      },
-      "id": "XKFLLrG_ZlzC",
-      "execution_count": null,
-      "outputs": []
-    },
-    {
-      "cell_type": "code",
-      "execution_count": null,
-      "id": "fe7ae694",
-      "metadata": {
-        "id": "fe7ae694"
-      },
-      "outputs": [],
-      "source": [
-        "## [Restore deleted table](https://docs.cloud.google.com/bigquery/docs/restore-deleted-tables#restore_a_table)\n",
-        "!date -d '2025-08-04 16:00:00.000000Z' +%s000\n",
-        "!bq cp httparchive.crawl.pages@1759670400000 httparchive.crawl_staging.pages_backup_20250804"
-      ]
-    },
-    {
-      "cell_type": "code",
-      "source": [
-        "# sql_engine: bigquery\n",
-        "# output_variable: df\n",
-        "# start _sql\n",
-        "_sql = \"\"\"\n",
-        "## [Restore a table to a specific point in time](https://cloud.google.com/bigquery/docs/restore-tables#restoring_a_table_to_a_specific_point_in_time)\n",
-        "SELECT *\n",
-        "FROM httparchive.crawl.pages\n",
-        "  FOR SYSTEM_TIME AS OF TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 1 HOUR);\n",
-        "\"\"\" # end _sql\n",
-        "from google.colab.sql import bigquery as _bqsqlcell\n",
-        "df = _bqsqlcell.run(_sql)\n",
-        "df"
-      ],
-      "metadata": {
-        "colab_type": "sql",
-        "id": "o4REpWzuZr03"
-      },
-      "id": "o4REpWzuZr03",
-      "execution_count": null,
-      "outputs": []
-    }
-  ],
-  "metadata": {
-    "kernelspec": {
-      "display_name": "Python 3",
-      "language": "python",
-      "name": "python3"
-    },
-    "language_info": {
-      "name": "python",
-      "version": "3.12.8"
-    },
-    "colab": {
-      "provenance": []
-    }
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "XKFLLrG_ZlzC",
+   "metadata": {
+    "colab_type": "sql",
+    "id": "XKFLLrG_ZlzC"
+   },
+   "outputs": [],
+   "source": [
+    "# sql_engine: bigquery\n",
+    "# output_variable: df\n",
+    "# start _sql\n",
+    "_sql = \"\"\"\n",
+    "## [Restore deleted dataset](https://docs.cloud.google.com/bigquery/docs/restore-deleted-datasets#restore_a_dataset)\n",
+    "UNDROP SCHEMA httparchive.crawl;\n",
+    "\"\"\" # end _sql\n",
+    "from google.colab.sql import bigquery as _bqsqlcell\n",
+    "df = _bqsqlcell.run(_sql)\n",
+    "df"
+   ]
   },
-  "nbformat": 4,
-  "nbformat_minor": 5
-}
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "fe7ae694",
+   "metadata": {
+    "id": "fe7ae694"
+   },
+   "outputs": [],
+   "source": [
+    "## [Restore deleted table](https://docs.cloud.google.com/bigquery/docs/restore-deleted-tables#restore_a_table)\n",
+    "!date -d '2025-08-04 16:00:00.000000Z' +%s000\n",
+    "!bq cp httparchive.crawl.pages@1759670400000 httparchive.crawl_staging.pages_restored_20250804"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "o4REpWzuZr03",
+   "metadata": {
+    "colab_type": "sql",
+    "id": "o4REpWzuZr03"
+   },
+   "outputs": [],
+   "source": [
+    "# sql_engine: bigquery\n",
+    "# output_variable: df\n",
+    "# start _sql\n",
+    "_sql = \"\"\"\n",
+    "## [Restore a table to a specific point in time](https://cloud.google.com/bigquery/docs/restore-tables#restoring_a_table_to_a_specific_point_in_time)\n",
+    "CREATE TABLE httparchive.crawl_staging.pages_restored_20250804 AS\n",
+    "SELECT *\n",
+    "FROM httparchive.crawl.pages\n",
+    "  FOR SYSTEM_TIME AS OF TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 1 HOUR);\n",
+    "\"\"\" # end _sql\n",
+    "from google.colab.sql import bigquery as _bqsqlcell\n",
+    "df = _bqsqlcell.run(_sql)\n",
+    "df"
+   ]
+  }
+ ],
+ "metadata": {
+  "colab": {
+   "provenance": []
+  },
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "name": "python",
+   "version": "3.12.8"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}