Oracle11g SQL Fundamentals I:1ZO-051

The DEPARTMENTS table contains a DEPARTMENT_NAME column with data type VARCHAR2(30).

(Choose two true statements about this column.)

A. This column can store character data up to a maximum of 30 characters.

B. This column must store character data that is at least 30 characters long.

C. The VARCHAR2 data type is replaced by the CHAR data type.

D. This column can store data in a column with data type VARCHAR2(50) provided that the contents are at most 30 characters long.


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