ractice database</a></li>
</ul></li>
<li class="chapter" data-level="6" data-path="sql.html"><a href="sql.html"><i class="fa fa-check"></i><b>6</b> Basics of SQL Language</a>
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<li class="chapter" data-level="6.1" data-path="sql.html"><a href="sql.html#the-sql-language"><i class="fa fa-check"></i><b>6.1</b> The SQL language</a></li>
<li class="chapter" data-level="6.2" data-path="sql.html"><a href="sql.html#writing-sql-queries"><i class="fa fa-check"></i><b>6.2</b> Writing SQL queries</a>
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<li class=