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| <div class="section" id="module-airflow.hooks.oracle_hook"> |
| <span id="airflow-hooks-oracle-hook"></span><h1><a class="reference internal" href="#module-airflow.hooks.oracle_hook" title="airflow.hooks.oracle_hook"><code class="xref py py-mod docutils literal notranslate"><span class="pre">airflow.hooks.oracle_hook</span></code></a><a class="headerlink" href="#module-airflow.hooks.oracle_hook" title="Permalink to this headline">¶</a></h1> |
| <div class="section" id="module-contents"> |
| <h2>Module Contents<a class="headerlink" href="#module-contents" title="Permalink to this headline">¶</a></h2> |
| <dl class="class"> |
| <dt id="airflow.hooks.oracle_hook.OracleHook"> |
| <em class="property">class </em><code class="descclassname">airflow.hooks.oracle_hook.</code><code class="descname">OracleHook</code><a class="reference internal" href="../../../../_modules/airflow/hooks/oracle_hook.html#OracleHook"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.oracle_hook.OracleHook" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases:<a class="reference internal" href="../dbapi_hook/index.html#airflow.hooks.dbapi_hook.DbApiHook" title="airflow.hooks.dbapi_hook.DbApiHook"><code class="xref py py-class docutils literal notranslate"><span class="pre">airflow.hooks.dbapi_hook.DbApiHook</span></code></a></p> |
| <p>Interact with Oracle SQL.</p> |
| <dl class="attribute"> |
| <dt id="airflow.hooks.oracle_hook.OracleHook.conn_name_attr"> |
| <code class="descname">conn_name_attr</code><em class="property"> = oracle_conn_id</em><a class="reference internal" href="../../../../_modules/airflow/hooks/oracle_hook.html#OracleHook.conn_name_attr"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.oracle_hook.OracleHook.conn_name_attr" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="attribute"> |
| <dt id="airflow.hooks.oracle_hook.OracleHook.default_conn_name"> |
| <code class="descname">default_conn_name</code><em class="property"> = oracle_default</em><a class="reference internal" href="../../../../_modules/airflow/hooks/oracle_hook.html#OracleHook.default_conn_name"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.oracle_hook.OracleHook.default_conn_name" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="attribute"> |
| <dt id="airflow.hooks.oracle_hook.OracleHook.supports_autocommit"> |
| <code class="descname">supports_autocommit</code><em class="property"> = False</em><a class="reference internal" href="../../../../_modules/airflow/hooks/oracle_hook.html#OracleHook.supports_autocommit"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.oracle_hook.OracleHook.supports_autocommit" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.hooks.oracle_hook.OracleHook.get_conn"> |
| <code class="descname">get_conn</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/hooks/oracle_hook.html#OracleHook.get_conn"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.oracle_hook.OracleHook.get_conn" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Returns a oracle connection object |
| Optional parameters for using a custom DSN connection |
| (instead of using a server alias from tnsnames.ora) |
| The dsn (data source name) is the TNS entry |
| (from the Oracle names server or tnsnames.ora file) |
| or is a string like the one returned from makedsn().</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>dsn</strong> – the host address for the Oracle server</p></li> |
| <li><p><strong>service_name</strong> – the db_unique_name of the database |
| that you are connecting to (CONNECT_DATA part of TNS)</p></li> |
| </ul> |
| </dd> |
| </dl> |
| <p>You can set these parameters in the extra fields of your connection |
| as in <code class="docutils literal notranslate"><span class="pre">{</span> <span class="pre">"dsn":"some.host.address"</span> <span class="pre">,</span> <span class="pre">"service_name":"some.service.name"</span> <span class="pre">}</span></code> |
| see more param detail in |
| <a class="reference external" href="https://cx-oracle.readthedocs.io/en/latest/module.html#cx_Oracle.connect">cx_Oracle.connect</a></p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.hooks.oracle_hook.OracleHook.insert_rows"> |
| <code class="descname">insert_rows</code><span class="sig-paren">(</span><em>self</em>, <em>table</em>, <em>rows</em>, <em>target_fields=None</em>, <em>commit_every=1000</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/hooks/oracle_hook.html#OracleHook.insert_rows"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.oracle_hook.OracleHook.insert_rows" title="Permalink to this definition">¶</a></dt> |
| <dd><p>A generic way to insert a set of tuples into a table, |
| the whole set of inserts is treated as one transaction |
| Changes from standard DbApiHook implementation:</p> |
| <ul class="simple"> |
| <li><p>Oracle SQL queries in cx_Oracle can not be terminated with a semicolon (<cite>;</cite>)</p></li> |
| <li><p>Replace NaN values with NULL using <cite>numpy.nan_to_num</cite> (not using |
| <cite>is_nan()</cite> because of input types error for strings)</p></li> |
| <li><p>Coerce datetime cells to Oracle DATETIME format during insert</p></li> |
| </ul> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>table</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.7)"><em>str</em></a>) – target Oracle table, use dot notation to target a |
| specific database</p></li> |
| <li><p><strong>rows</strong> (<em>iterable of tuples</em>) – the rows to insert into the table</p></li> |
| <li><p><strong>target_fields</strong> (<em>iterable of str</em>) – the names of the columns to fill in the table</p></li> |
| <li><p><strong>commit_every</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.7)"><em>int</em></a>) – the maximum number of rows to insert in one transaction |
| Default 1000, Set greater than 0. |
| Set 1 to insert each row in each single transaction</p></li> |
| </ul> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.hooks.oracle_hook.OracleHook.bulk_insert_rows"> |
| <code class="descname">bulk_insert_rows</code><span class="sig-paren">(</span><em>self</em>, <em>table</em>, <em>rows</em>, <em>target_fields=None</em>, <em>commit_every=5000</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/hooks/oracle_hook.html#OracleHook.bulk_insert_rows"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.oracle_hook.OracleHook.bulk_insert_rows" title="Permalink to this definition">¶</a></dt> |
| <dd><p>A performant bulk insert for cx_Oracle |
| that uses prepared statements via <cite>executemany()</cite>. |
| For best performance, pass in <cite>rows</cite> as an iterator.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>table</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.7)"><em>str</em></a>) – target Oracle table, use dot notation to target a |
| specific database</p></li> |
| <li><p><strong>rows</strong> (<em>iterable of tuples</em>) – the rows to insert into the table</p></li> |
| <li><p><strong>target_fields</strong> (<em>iterable of str Or None</em>) – the names of the columns to fill in the table, default None. |
| If None, each rows should have some order as table columns name</p></li> |
| <li><p><strong>commit_every</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.7)"><em>int</em></a>) – the maximum number of rows to insert in one transaction |
| Default 5000. Set greater than 0. Set 1 to insert each row in each transaction</p></li> |
| </ul> |
| </dd> |
| </dl> |
| </dd></dl> |
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