Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR?（）A、All objects in the databaseB、Tables owned by SYS and SYSTEMC、Data dictionary tablesD、NCHAR columnsE、CHAR columns
Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR?（）
- A、All objects in the database
- B、Tables owned by SYS and SYSTEM
- C、Data dictionary tables
- D、NCHAR columns
- E、CHAR columns
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