Question

What is the meaning of ROWID in SQL?

a) A special data type for storing row identifiers
b) A system function to retrieve the first row in a table
c) A column that contains unique row numbers
d) A concept that varies depending on the database system

Answer 1

The meaning of ROWID in SQL is a concept that varies depending on the database system.

Step-by-step explanation:

The meaning of ROWID in SQL is d) A concept that varies depending on the database system. Different database systems may implement the concept of ROWID in different ways. For example, in Oracle databases, ROWID is a unique identifier for a specific row in a table. It is a hexadecimal value that consists of the data block number, the row number within the block, and the file number.