orts "mode", "bnum", "apow", "fpow", "opts", "rcnum", and "xmsiz".  B+ tree
 database supports "mode", "lmemb", "nmemb", "bnum", "apow", "fpow", "opts", "lcnum", "ncnum",
 and "xmsiz".  Fixed-length database supports "mode", "width", and "limsiz".  Table database
 supports "mode", "bnum", "apow", "fpow", "opts", "rcnum", "lcnum", "ncnum", "xmsiz", and
 "idx".
<DT><B>Returns:</B><DD>If successful, it is true, else, it is false.<DT><B>Note:</B></DT>
  <DD>The tuning parameter "capnum" specifies the capacity n