可以用下面sql查一下：
SELECT '长度是否以字符为单位',CASE (SELECT PARA_VALUE FROM V$DM_INI WHERE "V$DM_INI".PARA_NAME ='LENGTH_IN_CHAR') WHEN '0' THEN '否' WHEN '1' THEN '是' END UNION ALL
SELECT '字符集',CASE SF_GET_UNICODE_FLAG() WHEN '0' THEN 'GBK18030' WHEN '1' THEN 'UTF-8' WHEN '2' THEN 'EUC-KR' END
初始化参数LENGTH_IN_CHAR=Y CHARSET=1 显示就变为4倍了
可以用下面sql查一下：
SELECT '长度是否以字符为单位',CASE (SELECT PARA_VALUE FROM V$DM_INI WHERE "V$DM_INI".PARA_NAME ='LENGTH_IN_CHAR') WHEN '0' THEN '否' WHEN '1' THEN '是' END UNION ALL
SELECT '字符集',CASE SF_GET_UNICODE_FLAG() WHEN '0' THEN 'GBK18030' WHEN '1' THEN 'UTF-8' WHEN '2' THEN 'EUC-KR' END