Which two tasks can you perform using only the TO_CHAR function? （）
- A、convert 10 to 'TEN'
- B、convert '10' to 10
- C、convert 10 to '10'
- D、convert 'TEN' to 10
- E、convert a date to a character expression
- F、convert a character expression to a date
正确答案:C,E
答案解析:有
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