194 lines
8.6 KiB
HTML
194 lines
8.6 KiB
HTML
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<title>Prepared Statement Object</title>
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<!-- keywords: {prepared statement} {prepared statements} sqlite3_stmt -->
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<a href="intro.html"><h2>SQLite C Interface</h2></a>
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<h2>Prepared Statement Object</h2>
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</div>
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<blockquote><pre>
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typedef struct sqlite3_stmt sqlite3_stmt;
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</pre></blockquote>
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<p>
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An instance of this object represents a single SQL statement that
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has been compiled into binary form and is ready to be evaluated.</p>
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<p>Think of each SQL statement as a separate computer program. The
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original SQL text is source code. A prepared statement object
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is the compiled object code. All SQL must be converted into a
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prepared statement before it can be run.</p>
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<p>The life-cycle of a prepared statement object usually goes like this:</p>
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<p><ol>
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<li> Create the prepared statement object using <a href="../c3ref/prepare.html">sqlite3_prepare_v2()</a>.
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<li> Bind values to <a href="../lang_expr.html#varparam">parameters</a> using the sqlite3_bind_*()
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interfaces.
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<li> Run the SQL by calling <a href="../c3ref/step.html">sqlite3_step()</a> one or more times.
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<li> Reset the prepared statement using <a href="../c3ref/reset.html">sqlite3_reset()</a> then go back
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to step 2. Do this zero or more times.
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<li> Destroy the object using <a href="../c3ref/finalize.html">sqlite3_finalize()</a>.
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</ol>
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</p><div class='columns' style='columns: 17em auto;'>
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<ul style='padding-top:0;'>
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<li><a href='../c3ref/prepare.html'>sqlite3_prepare</a></li>
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<li><a href='../c3ref/prepare.html'>sqlite3_prepare16</a></li>
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<li><a href='../c3ref/prepare.html'>sqlite3_prepare16_v2</a></li>
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<li><a href='../c3ref/prepare.html'>sqlite3_prepare16_v3</a></li>
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<li><a href='../c3ref/prepare.html'>sqlite3_prepare_v2</a></li>
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<li><a href='../c3ref/prepare.html'>sqlite3_prepare_v3</a></li>
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</ul>
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</div>
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</p>
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<p>Destructor: <a href="../c3ref/finalize.html">sqlite3_finalize()</a></p>
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<div class='columns' style='columns: 17em auto;'>
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<ul style='padding-top:0;'>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_blob</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_blob64</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_double</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_int</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_int64</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_null</a></li>
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<li><a href='../c3ref/bind_parameter_count.html'>sqlite3_bind_parameter_count</a></li>
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<li><a href='../c3ref/bind_parameter_index.html'>sqlite3_bind_parameter_index</a></li>
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<li><a href='../c3ref/bind_parameter_name.html'>sqlite3_bind_parameter_name</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_pointer</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_text</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_text16</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_text64</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_value</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_zeroblob</a></li>
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<li><a href='../c3ref/bind_blob.html'>sqlite3_bind_zeroblob64</a></li>
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<li><a href='../c3ref/clear_bindings.html'>sqlite3_clear_bindings</a></li>
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<li><a href='../c3ref/column_blob.html'>sqlite3_column_blob</a></li>
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<li><a href='../c3ref/column_blob.html'>sqlite3_column_bytes</a></li>
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<li><a href='../c3ref/column_blob.html'>sqlite3_column_bytes16</a></li>
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<li><a href='../c3ref/column_count.html'>sqlite3_column_count</a></li>
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<li><a href='../c3ref/column_database_name.html'>sqlite3_column_database_name</a></li>
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<li><a href='../c3ref/column_database_name.html'>sqlite3_column_database_name16</a></li>
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<li><a href='../c3ref/column_decltype.html'>sqlite3_column_decltype</a></li>
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<li><a href='../c3ref/column_decltype.html'>sqlite3_column_decltype16</a></li>
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<li><a href='../c3ref/column_blob.html'>sqlite3_column_double</a></li>
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<li><a href='../c3ref/column_blob.html'>sqlite3_column_int</a></li>
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<li><a href='../c3ref/column_blob.html'>sqlite3_column_int64</a></li>
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<li><a href='../c3ref/column_name.html'>sqlite3_column_name</a></li>
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<li><a href='../c3ref/column_name.html'>sqlite3_column_name16</a></li>
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<li><a href='../c3ref/column_database_name.html'>sqlite3_column_origin_name</a></li>
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<li><a href='../c3ref/column_database_name.html'>sqlite3_column_origin_name16</a></li>
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<li><a href='../c3ref/column_database_name.html'>sqlite3_column_table_name</a></li>
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<li><a href='../c3ref/column_database_name.html'>sqlite3_column_table_name16</a></li>
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<li><a href='../c3ref/column_blob.html'>sqlite3_column_text</a></li>
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<li><a href='../c3ref/column_blob.html'>sqlite3_column_text16</a></li>
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<li><a href='../c3ref/column_blob.html'>sqlite3_column_type</a></li>
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<li><a href='../c3ref/column_blob.html'>sqlite3_column_value</a></li>
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<li><a href='../c3ref/data_count.html'>sqlite3_data_count</a></li>
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<li><a href='../c3ref/db_handle.html'>sqlite3_db_handle</a></li>
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<li><a href='../c3ref/expanded_sql.html'>sqlite3_expanded_sql</a></li>
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<li><a href='../c3ref/expanded_sql.html'>sqlite3_normalized_sql</a></li>
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<li><a href='../c3ref/reset.html'>sqlite3_reset</a></li>
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<li><a href='../c3ref/expanded_sql.html'>sqlite3_sql</a></li>
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<li><a href='../c3ref/step.html'>sqlite3_step</a></li>
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<li><a href='../c3ref/stmt_busy.html'>sqlite3_stmt_busy</a></li>
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<li><a href='../c3ref/stmt_isexplain.html'>sqlite3_stmt_isexplain</a></li>
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<li><a href='../c3ref/stmt_readonly.html'>sqlite3_stmt_readonly</a></li>
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<li><a href='../c3ref/stmt_scanstatus.html'>sqlite3_stmt_scanstatus</a></li>
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<li><a href='../c3ref/stmt_scanstatus_reset.html'>sqlite3_stmt_scanstatus_reset</a></li>
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<li><a href='../c3ref/stmt_status.html'>sqlite3_stmt_status</a></li>
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</ul>
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</div>
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</p>
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<p>See also lists of
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<a href="objlist.html">Objects</a>,
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<a href="constlist.html">Constants</a>, and
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<a href="funclist.html">Functions</a>.</p>
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