">CREATE TABLE</span></a> for more details on
    creating partitioned tables and partitions.
   </p><p>
    It is not possible to turn a regular table into a partitioned table or
    vice versa.  However, it is possible to add an existing regular or
    partitioned table as a partition of a partitioned table, or remove a
    partition from a partitioned table turning it into a standalone table;
    this can simplify and speed up many maintenance processes.
    See <a class="xref" href="sql-altertable.html"