MySQL query transpose and pivot

sql_transpose_and_pivot.ipynb

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     "text": [
      "   year  month  value\n",
      "0  2001      1    123\n",
      "1  2002      2    234\n",
      "2  2003      3    345\n"
     ]
    }
   ],
   "source": [
    "import pandas as pd\n",
    "from sqlalchemy import create_engine\n",
    "\n",
    "dbconnection = create_engine(\"mysql://root:rockford@medec.ruby/test\")\n",
    "matrix = pd.read_sql(\"SELECT * FROM matrix\", dbconnection)\n",
    "print(matrix)"
   ]
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     "text": [
      "          0     1     2\n",
      "year   2001  2002  2003\n",
      "month     1     2     3\n",
      "value   123   234   345\n"
     ]
    }
   ],
   "source": [
    "m = matrix.transpose()\n",
    "print(m)"
   ]
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   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "month      1      2      3\n",
      "year                      \n",
      "2001   123.0    NaN    NaN\n",
      "2002     NaN  234.0    NaN\n",
      "2003     NaN    NaN  345.0\n"
     ]
    }
   ],
   "source": [
    "n = matrix.pivot(index=\"year\", columns=\"month\", values=\"value\")\n",
    "print(n)"
   ]
  },
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   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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