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    <h1>Reason for segfault</h1> <p>The <a href="https://www.sqlite.org/c3ref/column_blob.html" rel="nofollow">sqlite3 documentation for <code>sqlite3_column_text</code></a> says:</p> <blockquote> <p>If any of these routines are called [...] after <code>sqlite3_step()</code> has returned something other than <code>SQLITE_ROW</code>, the results are undefined."</p> </blockquote> <p>You aren't checking the return value of <code>sqlite3_step</code>, so it seems your query is returning some sort of error, and then <code>sqlite3_column_text</code> is returning an invalid pointer.</p> <h1>Debugging the SQL error</h1> <p>According to <a href="https://www.sqlite.org/c3ref/prepare.html" rel="nofollow">the documentation for <code>prepare</code></a>:</p> <blockquote> <p>The <code>sqlite3_prepare_v2()</code> and <code>sqlite3_prepare16_v2()</code> interfaces are recommended for all new programs. The two older interfaces [including <code>sqlite3_prepare</code>, which you call] are retained for backwards compatibility, but their use is discouraged.</p> <p>[...]</p> <p>When an error occurs, sqlite3_step() will return one of the detailed error codes or extended error codes. The legacy behavior was that sqlite3_step() would only return a generic SQLITE_ERROR result code and the application would have to make a second call to sqlite3_reset() in order to find the underlying cause of the problem. With the "v2" prepare interfaces, the underlying reason for the error is returned immediately.</p> </blockquote> <p>So if you switch to the newer interface, it should give a more informative message, rather than the generic <code>SQLITE_ERROR</code>.</p> <p>You could also try using the <code>sqlite3</code> command-line program, which will directly tell you what the error is. Example session:</p> <pre><code>user@host:/path$ sqlite3 test.sqlite sqlite&gt; create table example ( id numeric primary key ); sqlite&gt; select bogus from example; Error: no such column: bogus </code></pre> <hr> <p>Incidentally, for standard C++ use <code>#include &lt;cstring&gt;</code> for <code>#include &lt;string.h&gt;</code> and <code>bool CanClose()</code> for <code>bool CanClose(void)</code>.</p>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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