Which two statements are true about an Oracle database? (Choose two.)
Posted: Sun Jun 11, 2023 3:55 pm
Which two statements are true about an Oracle database? (Choose two.)
A. A table can have multiple primary keys.
B. A column definition can specify multiple data types.
C. A table can have multiple foreign keys.
D. A VARCHAR2 column without data has a NULL value. E. A NUMBER column without data has a zero value.
A. A table can have multiple primary keys.
B. A column definition can specify multiple data types.
C. A table can have multiple foreign keys.
D. A VARCHAR2 column without data has a NULL value. E. A NUMBER column without data has a zero value.