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  <div class="section" id="module-airflow.contrib.hooks.gcp_spanner_hook">
<span id="airflow-contrib-hooks-gcp-spanner-hook"></span><h1><a class="reference internal" href="#module-airflow.contrib.hooks.gcp_spanner_hook" title="airflow.contrib.hooks.gcp_spanner_hook"><code class="xref py py-mod docutils literal notranslate"><span class="pre">airflow.contrib.hooks.gcp_spanner_hook</span></code></a><a class="headerlink" href="#module-airflow.contrib.hooks.gcp_spanner_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.contrib.hooks.gcp_spanner_hook.CloudSpannerHook">
<em class="property">class </em><code class="sig-prename descclassname">airflow.contrib.hooks.gcp_spanner_hook.</code><code class="sig-name descname">CloudSpannerHook</code><span class="sig-paren">(</span><em class="sig-param">gcp_conn_id='google_cloud_default'</em>, <em class="sig-param">delegate_to=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="../gcp_api_base_hook/index.html#airflow.contrib.hooks.gcp_api_base_hook.GoogleCloudBaseHook" title="airflow.contrib.hooks.gcp_api_base_hook.GoogleCloudBaseHook"><code class="xref py py-class docutils literal notranslate"><span class="pre">airflow.contrib.hooks.gcp_api_base_hook.GoogleCloudBaseHook</span></code></a></p>
<p>Hook for Google Cloud Spanner APIs.</p>
<p>All the methods in the hook where project_id is used must be called with
keyword arguments rather than positional.</p>
<dl class="attribute">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._client">
<code class="sig-name descname">_client</code><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook._client"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._client" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._get_client">
<code class="sig-name descname">_get_client</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">project_id</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook._get_client"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._get_client" title="Permalink to this definition">¶</a></dt>
<dd><p>Provides a client for interacting with the Cloud Spanner API.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the  GCP project.</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>google.cloud.spanner_v1.client.Client</p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p><a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.8)">object</a></p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.get_instance">
<code class="sig-name descname">get_instance</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">instance_id</em>, <em class="sig-param">project_id=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook.get_instance"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.get_instance" title="Permalink to this definition">¶</a></dt>
<dd><p>Gets information about a particular instance.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Optional, The ID of the  GCP project that owns the Cloud Spanner
database.  If set to None or missing, the default project_id from the GCP connection is used.</p></li>
<li><p><strong>instance_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the Cloud Spanner instance.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>google.cloud.spanner_v1.instance.Instance</p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p><a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.8)">object</a></p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._apply_to_instance">
<code class="sig-name descname">_apply_to_instance</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">project_id</em>, <em class="sig-param">instance_id</em>, <em class="sig-param">configuration_name</em>, <em class="sig-param">node_count</em>, <em class="sig-param">display_name</em>, <em class="sig-param">func</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook._apply_to_instance"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._apply_to_instance" title="Permalink to this definition">¶</a></dt>
<dd><p>Invokes a method on a given instance by applying a specified Callable.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the  GCP project that owns the Cloud Spanner
database.</p></li>
<li><p><strong>instance_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the instance.</p></li>
<li><p><strong>configuration_name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Name of the instance configuration defining how the
instance will be created. Required for instances which do not yet exist.</p></li>
<li><p><strong>node_count</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – (Optional) Number of nodes allocated to the instance.</p></li>
<li><p><strong>display_name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – (Optional) The display name for the instance in the Cloud
Console UI. (Must be between 4 and 30 characters.) If this value is not set
in the constructor, will fall back to the instance ID.</p></li>
<li><p><strong>func</strong> (<em>Callable</em>) – Method of the instance to be called.</p></li>
</ul>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.create_instance">
<code class="sig-name descname">create_instance</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">instance_id</em>, <em class="sig-param">configuration_name</em>, <em class="sig-param">node_count</em>, <em class="sig-param">display_name</em>, <em class="sig-param">project_id=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook.create_instance"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.create_instance" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates a new Cloud Spanner instance.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>instance_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the Cloud Spanner instance.</p></li>
<li><p><strong>configuration_name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The name of the instance configuration defining how the
instance will be created. Possible configuration values can be retrieved via
<a class="reference external" href="https://cloud.google.com/spanner/docs/reference/rest/v1/projects.instanceConfigs/list">https://cloud.google.com/spanner/docs/reference/rest/v1/projects.instanceConfigs/list</a></p></li>
<li><p><strong>node_count</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – (Optional) The number of nodes allocated to the Cloud Spanner
instance.</p></li>
<li><p><strong>display_name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – (Optional) The display name for the instance in the GCP
Console. Must be between 4 and 30 characters.  If this value is not set in
the constructor, the name falls back to the instance ID.</p></li>
<li><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Optional, the ID of the  GCP project that owns the Cloud Spanner
database. If set to None or missing, the default project_id from the GCP connection is used.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>None</p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.update_instance">
<code class="sig-name descname">update_instance</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">instance_id</em>, <em class="sig-param">configuration_name</em>, <em class="sig-param">node_count</em>, <em class="sig-param">display_name</em>, <em class="sig-param">project_id=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook.update_instance"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.update_instance" title="Permalink to this definition">¶</a></dt>
<dd><p>Updates an existing Cloud Spanner instance.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>instance_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the Cloud Spanner instance.</p></li>
<li><p><strong>configuration_name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The name of the instance configuration defining how the
instance will be created. Possible configuration values can be retrieved via
<a class="reference external" href="https://cloud.google.com/spanner/docs/reference/rest/v1/projects.instanceConfigs/list">https://cloud.google.com/spanner/docs/reference/rest/v1/projects.instanceConfigs/list</a></p></li>
<li><p><strong>node_count</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – (Optional) The number of nodes allocated to the Cloud Spanner
instance.</p></li>
<li><p><strong>display_name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – (Optional) The display name for the instance in the GCP
Console. Must be between 4 and 30 characters. If this value is not set in
the constructor, the name falls back to the instance ID.</p></li>
<li><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Optional, the ID of the  GCP project that owns the Cloud Spanner
database. If set to None or missing, the default project_id from the GCP connection is used.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>None</p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.delete_instance">
<code class="sig-name descname">delete_instance</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">instance_id</em>, <em class="sig-param">project_id=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook.delete_instance"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.delete_instance" title="Permalink to this definition">¶</a></dt>
<dd><p>Deletes an existing Cloud Spanner instance.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>instance_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the Cloud Spanner instance.</p></li>
<li><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Optional, the ID of the GCP project that owns the Cloud Spanner
database. If set to None or missing, the default project_id from the GCP connection is used.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>None</p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.get_database">
<code class="sig-name descname">get_database</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">instance_id</em>, <em class="sig-param">database_id</em>, <em class="sig-param">project_id=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook.get_database"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.get_database" title="Permalink to this definition">¶</a></dt>
<dd><p>Retrieves a database in Cloud Spanner. If the database does not exist
in the specified instance, it returns None.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>instance_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the Cloud Spanner instance.</p></li>
<li><p><strong>database_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the database in Cloud Spanner.</p></li>
<li><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Optional, the ID of the  GCP project that owns the Cloud Spanner
database. If set to None or missing, the default project_id from the GCP connection is used.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>Database object or None if database does not exist</p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p><a class="reference external" href="https://googleapis.dev/python/spanner/latest/database-api.html#google.cloud.spanner_v1.database.Database" title="(in google-cloud-spanner v0.1)">google.cloud.spanner_v1.database.Database</a> or <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.8)">None</a></p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.create_database">
<code class="sig-name descname">create_database</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">instance_id</em>, <em class="sig-param">database_id</em>, <em class="sig-param">ddl_statements</em>, <em class="sig-param">project_id=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook.create_database"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.create_database" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates a new database in Cloud Spanner.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>instance_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the Cloud Spanner instance.</p></li>
<li><p><strong>database_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the database to create in Cloud Spanner.</p></li>
<li><p><strong>ddl_statements</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.8)"><em>list</em></a><em>[</em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em>]</em>) – The string list containing DDL for the new database.</p></li>
<li><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Optional, the ID of the  GCP project that owns the Cloud Spanner
database. If set to None or missing, the default project_id from the GCP connection is used.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>None</p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.update_database">
<code class="sig-name descname">update_database</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">instance_id</em>, <em class="sig-param">database_id</em>, <em class="sig-param">ddl_statements</em>, <em class="sig-param">project_id=None</em>, <em class="sig-param">operation_id=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook.update_database"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.update_database" title="Permalink to this definition">¶</a></dt>
<dd><p>Updates DDL of a database in Cloud Spanner.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>instance_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the Cloud Spanner instance.</p></li>
<li><p><strong>database_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the database in Cloud Spanner.</p></li>
<li><p><strong>ddl_statements</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.8)"><em>list</em></a><em>[</em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em>]</em>) – The string list containing DDL for the new database.</p></li>
<li><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Optional, the ID of the GCP project that owns the Cloud Spanner
database. If set to None or missing, the default project_id from the GCP connection is used.</p></li>
<li><p><strong>operation_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – (Optional) The unique per database operation ID that can be
specified to implement idempotency check.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>None</p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.delete_database">
<code class="sig-name descname">delete_database</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">instance_id</em>, <em class="sig-param">database_id</em>, <em class="sig-param">project_id=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook.delete_database"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.delete_database" title="Permalink to this definition">¶</a></dt>
<dd><p>Drops a database in Cloud Spanner.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>instance_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the Cloud Spanner instance.</p></li>
<li><p><strong>database_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the database in Cloud Spanner.</p></li>
<li><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Optional, the ID of the  GCP project that owns the Cloud Spanner
database. If set to None or missing, the default project_id from the GCP connection is used.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>True if everything succeeded</p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p><a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.8)">bool</a></p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.execute_dml">
<code class="sig-name descname">execute_dml</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">instance_id</em>, <em class="sig-param">database_id</em>, <em class="sig-param">queries</em>, <em class="sig-param">project_id=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook.execute_dml"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook.execute_dml" title="Permalink to this definition">¶</a></dt>
<dd><p>Executes an arbitrary DML query (INSERT, UPDATE, DELETE).</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>instance_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the Cloud Spanner instance.</p></li>
<li><p><strong>database_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The ID of the database in Cloud Spanner.</p></li>
<li><p><strong>queries</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The queries to execute.</p></li>
<li><p><strong>project_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Optional, the ID of the  GCP project that owns the Cloud Spanner
database. If set to None or missing, the default project_id from the GCP connection is used.</p></li>
</ul>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._execute_sql_in_transaction">
<em class="property">static </em><code class="sig-name descname">_execute_sql_in_transaction</code><span class="sig-paren">(</span><em class="sig-param">transaction</em>, <em class="sig-param">queries</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/gcp_spanner_hook.html#CloudSpannerHook._execute_sql_in_transaction"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._execute_sql_in_transaction" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>

</dd></dl>

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