Which two statements are true about using the OR REPLACE clause when creating named subprograms? (Choose two.)
Function based indexes remain usable when replacing the function on which the index depends.
Object privileges to execute a replaced function must be regranted to those users who had the privilege.
This clause can be used only for procedures and functions.
A function definition can be modified without dropping and re-creating it.
Object privileges to execute a replaced function are retained by those users who had the privileges.
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