> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kinetica.com/llms.txt
> Use this file to discover all available pages before exploring further.

# alterTableMetadata

<div className="kinetica-doxygen">
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  <h2 className="memtitle"><span className="permalink"><a href="#a802f1780a5103d4f2c0eaca378ccfbbb">◆ </a></span>alterTableMetadata() <span className="overload">\[1/2]</span></h2>

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    <div className="memproto">
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          <td className="mlabels-left">
            <table className="memname">
              <tr>
                <td className="memname"><a className="el" href="/content/api/cs/classkinetica_1_1AlterTableMetadataResponse">AlterTableMetadataResponse</a> kinetica.Kinetica.alterTableMetadata </td>
                <td>(</td>
                <td className="paramtype"><a className="el" href="/content/api/cs/classkinetica_1_1AlterTableMetadataRequest">AlterTableMetadataRequest</a></td>
                <td className="paramname"><span className="paramname"><span className="em">request\_</span></span></td>
                <td>)</td>

                <td />
              </tr>
            </table>
          </td>

          <td className="mlabels-right"> <span className="mlabels"><span className="mlabel inline">inline</span></span> </td>
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    <div className="memdoc">
      <p>Updates (adds or changes) metadata for tables. </p>
      <p>The metadata key and values must both be strings. This is an easy way to annotate whole tables rather than single records within tables. Some examples of metadata are owner of the table, table creation timestamp etc.</p>

      <div className="dl params">
        <div className="dt">Parameters</div>

        <div className="dd">
          <table className="params">
            <tr>
              <td className="paramname">request\_</td>
              <td>Request object containing the parameters for the operation.</td>
            </tr>
          </table>
        </div>
      </div>

      <div className="dl section return">
        <div className="dt">Returns</div>
        <div className="dd">Response object containing the result of the operation. </div>
      </div>

      <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/KineticaFunctions.cs#L14231">14231</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/KineticaFunctions.cs">KineticaFunctions.cs</a>.</p>
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  <div id="ab20bed4078cc31de00ba36f037332d0c" />

  <h2 className="memtitle"><span className="permalink"><a href="#ab20bed4078cc31de00ba36f037332d0c">◆ </a></span>alterTableMetadata() <span className="overload">\[2/2]</span></h2>

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    <div className="memproto">
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          <td className="mlabels-left">
            <table className="memname">
              <tr>
                <td className="memname"><a className="el" href="/content/api/cs/classkinetica_1_1AlterTableMetadataResponse">AlterTableMetadataResponse</a> kinetica.Kinetica.alterTableMetadata </td>
                <td>(</td>
                <td className="paramtype">IList\< string ></td>
                <td className="paramname"><span className="paramname"><span className="em">table\_names</span></span>, </td>
              </tr>

              <tr>
                <td className="paramkey" />

                <td />

                <td className="paramtype">IDictionary\< string, string ></td>
                <td className="paramname"><span className="paramname"><span className="em">metadata\_map</span></span>, </td>
              </tr>

              <tr>
                <td className="paramkey" />

                <td />

                <td className="paramtype">IDictionary\< string, string ></td>
                <td className="paramname"><span className="paramname"><span className="em">options</span></span><span className="paramdefsep"> = </span><span className="paramdefval">null</span> )</td>
              </tr>
            </table>
          </td>

          <td className="mlabels-right"> <span className="mlabels"><span className="mlabel inline">inline</span></span> </td>
        </tr>
      </table>
    </div>

    <div className="memdoc">
      <p>Updates (adds or changes) metadata for tables. </p>
      <p>The metadata key and values must both be strings. This is an easy way to annotate whole tables rather than single records within tables. Some examples of metadata are owner of the table, table creation timestamp etc.</p>

      <div className="dl params">
        <div className="dt">Parameters</div>

        <div className="dd">
          <table className="params">
            <tr>
              <td className="paramname">table\_names</td>
              <td>Names of the tables whose metadata will be updated, in \[schema\_name.]table\_name format, using standard <a href="/content/concepts/tables/#table-name-resolution" target="_top">name resolution rules</a>. All specified tables must exist, or an error will be returned.</td>
            </tr>

            <tr>
              <td className="paramname">metadata\_map</td>
              <td>A map which contains the metadata of the tables that are to be updated. Note that only one map is provided for all the tables; so the change will be applied to every table. If the provided map is empty, then all existing metadata for the table(s) will be cleared.</td>
            </tr>

            <tr>
              <td className="paramname">options</td>
              <td>Optional parameters. The default value is an empty Dictionary.</td>
            </tr>
          </table>
        </div>
      </div>

      <div className="dl section return">
        <div className="dt">Returns</div>
        <div className="dd">Response object containing the result of the operation. </div>
      </div>

      <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/KineticaFunctions.cs#L14279">14279</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/KineticaFunctions.cs">KineticaFunctions.cs</a>.</p>
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  <div id="a6a3a3baa6ecd33f12da7793be0977f4f" />

  <h2 className="memtitle"><span className="permalink"><a href="#a6a3a3baa6ecd33f12da7793be0977f4f">◆ </a></span>AlterTableMetadataAsync() <span className="overload">\[1/2]</span></h2>

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          <td className="mlabels-left">
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                <td className="memname">async System.Threading.Tasks.Task\< <a className="el" href="/content/api/cs/classkinetica_1_1AlterTableMetadataResponse">AlterTableMetadataResponse</a> > kinetica.Kinetica.AlterTableMetadataAsync </td>
                <td>(</td>
                <td className="paramtype"><a className="el" href="/content/api/cs/classkinetica_1_1AlterTableMetadataRequest">AlterTableMetadataRequest</a></td>
                <td className="paramname"><span className="paramname"><span className="em">request\_</span></span>, </td>
              </tr>

              <tr>
                <td className="paramkey" />

                <td />

                <td className="paramtype">System.Threading.CancellationToken</td>
                <td className="paramname"><span className="paramname"><span className="em">cancellationToken</span></span><span className="paramdefsep"> = </span><span className="paramdefval">default</span> )</td>
              </tr>
            </table>
          </td>

          <td className="mlabels-right"> <span className="mlabels"><span className="mlabel inline">inline</span></span> </td>
        </tr>
      </table>
    </div>

    <div className="memdoc">
      <p>Updates (adds or changes) metadata for tables. </p>
      <p>(async)</p>
      <p>The metadata key and values must both be strings. This is an easy way to annotate whole tables rather than single records within tables. Some examples of metadata are owner of the table, table creation timestamp etc.</p>

      <div className="dl params">
        <div className="dt">Parameters</div>

        <div className="dd">
          <table className="params">
            <tr>
              <td className="paramname">request\_</td>
              <td>Request object containing the parameters for the operation.</td>
            </tr>

            <tr>
              <td className="paramname">cancellationToken</td>
              <td>Cancellation token to cancel the operation.</td>
            </tr>
          </table>
        </div>
      </div>

      <div className="dl section return">
        <div className="dt">Returns</div>
        <div className="dd">Task that returns the response object containing the result of the operation.</div>
      </div>

      <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/KineticaFunctions.cs#L14251">14251</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/KineticaFunctions.cs">KineticaFunctions.cs</a>.</p>
    </div>
  </div>

  <div id="aa8123d9569f074b876e898570eefa494" />

  <h2 className="memtitle"><span className="permalink"><a href="#aa8123d9569f074b876e898570eefa494">◆ </a></span>AlterTableMetadataAsync() <span className="overload">\[2/2]</span></h2>

  <div className="memitem">
    <div className="memproto">
      <table className="mlabels">
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          <td className="mlabels-left">
            <table className="memname">
              <tr>
                <td className="memname">async System.Threading.Tasks.Task\< <a className="el" href="/content/api/cs/classkinetica_1_1AlterTableMetadataResponse">AlterTableMetadataResponse</a> > kinetica.Kinetica.AlterTableMetadataAsync </td>
                <td>(</td>
                <td className="paramtype">IList\< string ></td>
                <td className="paramname"><span className="paramname"><span className="em">table\_names</span></span>, </td>
              </tr>

              <tr>
                <td className="paramkey" />

                <td />

                <td className="paramtype">IDictionary\< string, string ></td>
                <td className="paramname"><span className="paramname"><span className="em">metadata\_map</span></span>, </td>
              </tr>

              <tr>
                <td className="paramkey" />

                <td />

                <td className="paramtype">IDictionary\< string, string ></td>
                <td className="paramname"><span className="paramname"><span className="em">options</span></span><span className="paramdefsep"> = </span><span className="paramdefval">null</span>, </td>
              </tr>

              <tr>
                <td className="paramkey" />

                <td />

                <td className="paramtype">System.Threading.CancellationToken</td>
                <td className="paramname"><span className="paramname"><span className="em">cancellationToken</span></span><span className="paramdefsep"> = </span><span className="paramdefval">default</span> )</td>
              </tr>
            </table>
          </td>

          <td className="mlabels-right"> <span className="mlabels"><span className="mlabel inline">inline</span></span> </td>
        </tr>
      </table>
    </div>

    <div className="memdoc">
      <p>Updates (adds or changes) metadata for tables. </p>
      <p>(async)</p>
      <p>The metadata key and values must both be strings. This is an easy way to annotate whole tables rather than single records within tables. Some examples of metadata are owner of the table, table creation timestamp etc.</p>

      <div className="dl params">
        <div className="dt">Parameters</div>

        <div className="dd">
          <table className="params">
            <tr>
              <td className="paramname">table\_names</td>
              <td>Names of the tables whose metadata will be updated, in \[schema\_name.]table\_name format, using standard <a href="/content/concepts/tables/#table-name-resolution" target="_top">name resolution rules</a>. All specified tables must exist, or an error will be returned.</td>
            </tr>

            <tr>
              <td className="paramname">metadata\_map</td>
              <td>A map which contains the metadata of the tables that are to be updated. Note that only one map is provided for all the tables; so the change will be applied to every table. If the provided map is empty, then all existing metadata for the table(s) will be cleared.</td>
            </tr>

            <tr>
              <td className="paramname">options</td>
              <td>Optional parameters. The default value is an empty Dictionary.</td>
            </tr>

            <tr>
              <td className="paramname">cancellationToken</td>
              <td>Cancellation token to cancel the operation.</td>
            </tr>
          </table>
        </div>
      </div>

      <div className="dl section return">
        <div className="dt">Returns</div>
        <div className="dd">Task that returns the response object containing the result of the operation.</div>
      </div>

      <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/KineticaFunctions.cs#L14310">14310</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/KineticaFunctions.cs">KineticaFunctions.cs</a>.</p>
    </div>
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</div>