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‎README.md‎

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# Datajoint Book
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Welcome to DataJoint book, a comprehensive introduction to relational database programming in the context of scientific computing and data science.
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This is a companion book to the [DataJoint Book](https://dimitri-yatsenko.datajoint.io/datajoint-book).
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It contains exercises and assignments for a semester-long course for Database Systems programming.
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The course covers the basic concepts for designing, populating, and querying relational databases.
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Welcome to the [DataJoint Book](https://dimitri-yatsenko.github.io/datajoint-book), a comprehensive
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introduction to relational database programming in the context of scientific computing and data science.
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# License
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© DataJoint Inc., 2024. All rights reserved.
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© DataJoint Inc., 2024--2025, All rights reserved.
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This work is licensed under the [Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License](LICENSE.md).
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You may share the content as long as you

‎book/35-example-designs/030-nations-database.ipynb‎

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"\n",
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"dj.Diagram(schema)"
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" <tbody> <tr> <td>1</td>\n",
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"<td>1986</td>\n",
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"<td>62644</td>\n",
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"<td>405463417</td></tr><tr><td>1</td>\n",
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"<td>1987</td>\n",
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"<td>61833</td>\n",
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"<td>487602457</td></tr><tr><td>1</td>\n",
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"<td>1988</td>\n",
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"<td>61079</td>\n",
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"<td>596423607</td></tr><tr><td>1</td>\n",
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"<td>1989</td>\n",
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"<td>61032</td>\n",
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"<td>695304363</td></tr><tr><td>1</td>\n",
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"<td>1990</td>\n",
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"<td>62149</td>\n",
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"<td>1991</td>\n",
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"<td>64622</td>\n",
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"<td>872138730</td></tr><tr><td>1</td>\n",
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"<td>1992</td>\n",
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"<td>68235</td>\n",
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"<td>958463200</td></tr><tr><td>1</td>\n",
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"<td>1993</td>\n",
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"<td>72504</td>\n",
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"<td>1082979708</td></tr><tr><td>1</td>\n",
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"<td>1994</td>\n",
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"<td>76700</td>\n",
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"<td>1245688253</td></tr><tr><td>1</td>\n",
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"<td>1995</td>\n",
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"<td>80324</td>\n",
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"<td>83200</td>\n",
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"<td>1379960894</td></tr><tr><td>1</td>\n",
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"<td>1997</td>\n",
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"<td>85451</td>\n",
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"<td>1531944134</td> </tr> </tbody>\n",
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" </table>\n",
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" <p>...</p>\n",
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" <p>Total: 9514</p></div>\n",
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" "
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],
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"*country_id *year population gdp \n",
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"+------------+ +------+ +------------+ +------------+\n",
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"1 1986 62644 405463417 \n",
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"1 1987 61833 487602457 \n",
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"1 1988 61079 596423607 \n",
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"1 1989 61032 695304363 \n",
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"1 1990 62149 764887117 \n",
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"1 1991 64622 872138730 \n",
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"1 1992 68235 958463200 \n",
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"1 1993 72504 1082979708 \n",
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"1 1994 76700 1245688253 \n",
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"1 1995 80324 1320474860 \n",
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"1 1996 83200 1379960894 \n",
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"1 1997 85451 1531944134 \n",
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" ...\n",
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" (Total: 9514)"
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]
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