secondo/apis/python2/SecondoAPI/demo.ipynb

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   "source": [
    "#secondomonitor -s  cd secondo/bin\n",
    "#startoptserver     cd secondo/optimizer\n",
    "\n",
    "import import_ipynb\n",
    "import asyncio\n",
    "from PySecondo import *\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
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   "source": [
    "scn = Secondo()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
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    "scrolled": true
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    "#Queries:\n",
    "#comm = 'open database berlintest'\n",
    "#comm = 'let testrel10 = [ const rel(tuple([Plz: int, Ort: string])) value() ]'\n",
    "#comm = 'delete testrel10'\n",
    "#comm = 'query Staedte feed filter[(.Bev > 250000)] count'\n",
    "#comm = 'query Staedte feed filter[(.Bev > 250000)] consume'\n",
    "#comm = 'sql select * from staedte where bev > 250000'\n",
    "#comm = 'list algebras'\n",
    "#comm = 'list algebra PyStreamAlgebra'\n",
    "#comm = 'restore database berlintest from berlintest'\n",
    "#comm = 'close database'\n",
    "#await scn.command_exec(comm)\n",
    "#print(scn.fetch_result_type())\n",
    "#print(scn.fetch_result_rows())\n",
    "\n",
    "\n",
    "\n",
    "\n",
    "#pyreceive example:\n",
    "#############\n",
    "#comm = 'delete testrel29'\n",
    "#await scn.command_exec(comm)\n",
    "#############\n",
    "#tupels = [[1059,\"Dresden\"], [1060,\"Dresden\"], [1001,\"Dresden\"], [1002,\"Dresden\"], [1003,\"Dresden\"],[1004,\"Dresden\"],[1005,\"Dresden\"],[1006,\"Dresden\"],[1007,\"Dresden\"],[1008,\"Dresden\"]]\n",
    "#comm = 'let testrel29 = [ const rel(tuple([Plz: int, Ort: string])) value() ] pyreceive[30000] consume'\n",
    "#await scn.command_exec(comm, tupel_source = tupels)\n",
    "#############\n",
    "#comm = 'query testrel29 feed consume'\n",
    "#await scn.command_exec(comm)\n",
    "#print(scn.fetch_result_type())\n",
    "#print(scn.fetch_result_rows())\n",
    "#############\n",
    "\n",
    "\n",
    "\n",
    "\n",
    "#pysend example:\n",
    "#comm = 'query plz feed head[20] pysend[30000] consume'\n",
    "#await scn.command_exec(comm)\n",
    "#print(scn.fetch_result_type())\n",
    "#print(scn.fetch_result_rows())\n",
    "#for item in scn.fetch_stream_result():\n",
    "    #print(item)\n",
    "#scn.parse_stream_result_to_relation()\n",
    "\n",
    "\n",
    "\n",
    "\n",
    "\n",
    "\n",
    "#Executing the commands except for the queries which contain pyreceive-operator.\n",
    "#await scn.command_exec(comm)\n",
    "\n",
    "\n",
    "\n",
    "#Representing the result of queries and their type:\n",
    "#print(scn.fetch_result_type())\n",
    "#print(scn.fetch_result_rows())\n",
    "\n",
    "\n",
    "\n",
    "#parsing the reult to a relation-data structure in Python if applicable\n",
    "#scn.parse_result_to_relation()\n",
    "\n",
    "\n",
    "\n",
    "#parsing the reult to a integer-data type in Python if applicable\n",
    "#scn.parse_result_to_secondo_int()\n",
    "\n",
    "\n",
    "\n",
    "#pysend- iterating through the stream of Tuples received and converting them to a relation-data structure in Python\n",
    "#for item in scn.fetch_stream_result():\n",
    "    #print(item)\n",
    "#scn.parse_stream_result_to_relation()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "#scn.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
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