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SELECT NAME, value$
FROM sys.props$
WHERE NAME LIKE '%CHARACTERSET%' ;
--type 1의 charsetform - 1: varchar2, 2: nvarchar2
--type 2의 charsetform - 1: varchar 2: nchar varying
--type 96의 charsetform - 1: char 2: nchar
--type 112의 charsetform - 1: clob 2: nclob
select distinct(nls_charset_name(charsetid)) CHARACTERSET, type#, charsetform
from sys.col$
where charsetform in (1,2) and type# in (1,9,96,112)
order by type#, charsetform;
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