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Unicode 文字列を 16 進数に変換したい。
つまり、文字列を次のように変換する必要がありますأحمد。
أحمد
0xC3CDE3CF0000000000000000000000000000000000000000000000000000
試す:
select rawtohex(convert('أحمد','AR8ISO8859P6','AL32UTF8')) from dual;
これがsqlfiddleのデモです
select rawtohex(col) from table