100.dathere.com/lessons/4/exercise.ipynb

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   "source": [
    "# Exercise 4: Running Polars SQL queries with qsv\n",
    "\n",
    "1. Display all of the data."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "qsv sqlp --help"
   ]
  },
  {
   "cell_type": "markdown",
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   "source": [
    "2. Display the first 2 rows of data."
   ]
  },
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   "execution_count": null,
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   "source": [
    "3. Display all the bus IDs with their lengths and whether they have air conditioning. Then render this output with `qsv table`."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
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   "outputs": [],
   "source": []
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   "source": [
    "4. Display all bus IDs which have air conditioning. Output the data in JSON format."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "vscode": {
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   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "5. Display all bus IDs which have cup holders. Output the data in JSONL format."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "vscode": {
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   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "6. Get the count of all buses where the primary color is either black or white."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "vscode": {
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