Which three statements are true about the DESCRIBE command?

Oracle 1z0-082 Question Answer

Which three statements are true about the DESCRIBE command? (Choose three.)

It displays the PRIMARY KEY constraint for any column or columns that have that constraint

It can be used from SQL Developer

It displays the NOT NULL constraint for any columns that have that constraint

It can be used to display the structure of an existing view

It displays all constraints that are defined for each column

It can be used only from SQL*Plus

1z0-082 PDF/Engine

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