Home » Oracle » 1z0-051 » Which statement describes the ROWID data type?
Which statement describes the ROWID data type?
A. Binary data up to 4 gigabytes.
B. Character data up to 4 gigabytes.
C. Raw binary data of variable length up to 2 gigabytes.
D. Binary data stored in an external file, up to 4 gigabytes.
E. A hexadecimal string representing the unique address of a row in its table.
Correct Answer: E
Explanation/Reference:
Explanation:
The ROWID datatype stores information related to the disk location of table rows. They also uniquely identify the rows in your table. The ROWID datatype is stored as a hexadecimal string.
Incorrect Answers
A:It is not a binary data. The ROWID datatype is a hexadecimal string.
B:It is not a character data. The ROWID datatype is a hexadecimal string.
C:It is not a raw binary data. The ROWID datatype is a hexadecimal string.
D:It is not binary data stored in an external file. The ROWID datatype is a hexadecimal string.
OCP Introduction to Oracle 9i: SQL Exam Guide, Jason Couchman, p. 216
Chapter 5: Creating Oracle Database Objects
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