SELECT
PF_CODE AS "都道府県コード"
, PF_NAME AS "都道府県名"
, CASE WHEN ROUND(_calc) = _calc THEN ROUND(_calc)
ELSE _calc
END AS "入院率"


FROM 
(
SELECT
h.PF_CODE
, p.PF_NAME
, ROUND(1.0 * INP_YES / (INP_YES + INP_NO + UNIDENTIFIED) * 100, 2) AS _calc

FROM
HOSPITALIZATION AS h

LEFT OUTER JOIN
PREFECTURE AS p

ON
h.PF_CODE = p.PF_CODE
)

ORDER BY 
3 DESC
, 1