Oracle OCP 19c ÈÏÖ¤1Z0-082¿¼ÊÔÌâ¿â(µÚ35Ìâ) - about single-row functions

Oracle OCP 19c ÈÏÖ¤1Z0-082¿¼ÊÔÌâ¿â(µÚ35Ìâ)-CUUGÄÚ²¿Ñ§Ô±°æ082Ìâ¿â½âÎö

35¡¢Which three statements are true about single-row functions? (Choose three.)

A. They can be used only in the WHERE clause of a SELECT statement

B. The argument can be a column name, variable, literal or an expression

C. The data type returned can be different from the data type of the argument

D. They can be nested to any level

E. They can accept only one argument

F. They return a single result row per table

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