Q153 Which three statements are true about the DESCRIBE command?
Q153 Which three statements are true about the DESCRIBE command? (Choose three.)
- A) It displays the PRIMARY KEY constraint for any column or columns that have that constraint
- B) It can be used from SQL Developer
- C) It displays the NOT NULL constraint for any columns that have that constraint
- D) It can be used to display the structure of an existing view
- E) It displays all constraints that are defined for each column
- F) It can be used only from SQL*Plus
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