Which statement describes the ROWID data type?
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binary data up to 4 gigabytes
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character data up to 4 gigabytes
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a hexadecimal string representing the unique address of a row in its table
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raw binary data of variable length up to 2 gigabytes
The ROWID is a pseudo-column that represents the unique physical address of a row within an Oracle database. It is typically displayed as a base-64 or hexadecimal string and provides the fastest way to access a specific row.
To answer this question, you need to understand the ROWID data type.
Option A) binary data up to 4 gigabytes - This option is incorrect. The ROWID data type does not store binary data.
Option B) character data up to 4 gigabytes - This option is incorrect. The ROWID data type does not store character data.
Option C) a hexadecimal string representing the unique address of a row in its table - This option is correct. The ROWID data type is a hexadecimal string that represents the unique address of a row in its table. It is used to uniquely identify a row within a table.
Option D) raw binary data of variable length up to 2 gigabytes - This option is incorrect. The ROWID data type does not store raw binary data.
The correct answer is C. This option is correct because the ROWID data type is a hexadecimal string representing the unique address of a row in its table.