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select to_char(0.45,'0.99'); ½á¹ûÊÇ0.45
select to_char(0.45,'9.99'); ½á¹ûÊÇ.45
select to_char(2.45,'0.99'); ½á¹ûÊÇ2.45
select to_char(2.45,'9.99'); ½á¹ûÊÇ2.45
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SELECT
to_char(123.45, '0009.9'),
to_char(123.45, '9999.9'),
to_char(123.45, 'B999.9')
from dual;
½á¹ûΪ
TO_CHAR(123.45,'0009.9') TO_CHAR(123.45,'9999.9') TO_CHAR(123.45,'B999.9')
------------------------ ------------------------ ------------------------
0123.5 123.5 123.5
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