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TEL : 020-02515-012563 / FAX : --
guangzhou guangdong guangzhou China [CN]
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---二进制转换十进制-----------------
select sum(data1)
from (select substr('1101', rownum, 1) * power
(2, length('1101') - rownum) data1
from dual
connect by rownum <= length('1101'))
-----八进制转换十进制-----------------
select sum(data1)
from (select substr('1101', rownum, 1) * power
(8, length('1101') - rownum) data1
from dual
connect by rownum <= length('1101'))
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