What is the use of < dataset > in oozie coordinator

<coordinator-app name="[NAME]" frequency="[FREQUENCY]" start="[DATETIME]" end="[DATETIME]" timezone="[TIMEZONE]" xmlns="uri:oozie:coordinator:0.1">
......
<dataset name="stats_hive_table" frequency="${coord:days(1)}" initial-instance="2014-03-05T00:00Z" timezone="America/Los_Angeles">
     <uri-template>
          hdfs://m1:9000/hive/warehouse/user_events/${YEAR}${MONTH}/${DAY}/data
     </uri-template>
     <done-flag>donefile.flag</done-flag>
</dataset>
......
<action>
          <workflow>
               <app-path>[WF-APPLICATION-PATH]</app-path>
               <configuration>
                    <property>
                         <name>[PROPERTY-NAME]</name>
                         <value>[PROPERTY-VALUE]</value>
                    </property>
                    ...
               </configuration>
          </workflow>
     </action>


</coordinator-app>

Coordinator.xml is probably like this, in which what is the role of the dataset tag, the official website does not understand, can be combined with the actual use of a specific application example is the best, thank you!

Oozie

Apr.01,2021