How to change Number format in oracle?

问题

I have a requirement to globalize the application based on culture specified in config file.

I have Amounts and date values .I decided to convert them in query itself.Like below

For Spanish Chile Es-CL:

for Date format is "dd-mm-yyyy" I will use Select TO_CHAR(busdate,'dd-mm-yyyy') from itemTable.

Similarly i want to use same for the amounts Select to_char(Amount,'99.999.99,00') from table1.

But its in vain.

Please suggest me the right way to achive my requirement.

These amounts and date formats can be available.but need to know how to convert them.

I thought to use in On_Data_bound event for datagrids ,but still this will be a performance issue.

回答1:

You would use the NLS_NUMERIC_CHARACTERS session variable, along with globalized format model:

SQL> alter session set NLS_NUMERIC_CHARACTERS='.,';

Session altered

SQL> select to_char(123456789.01, 'fm999G999G990D00') from dual;

TO_CHAR(123456789.01,
---------------------
123,456,789.01

SQL> alter session set NLS_NUMERIC_CHARACTERS=', ';

Session altered

SQL> select to_char(123456789.01, 'fm999G999G990D00') from dual;

TO_CHAR(123456789.01,
---------------------
123 456 789,01

来源：https://stackoverflow.com/questions/15783136/how-to-change-number-format-in-oracle