WAEC - Computer Studies (2024 - No. 38)
Which of the following statements about index is true? It is a data structure
that reduces the speed of data retrieval operations on a database table.
used to quickly locate data without searching every row in a table every time a database table is accessed.
created using only two rows of a database table to uniquely identify each record.
that allows relational database to split and store data in different tables, while linking disparate items.
설명
An index data structure can be used to quickly locate data without searching every row in a table every time a database table is accessed.