Associative arrays is also known as index-by tables - PL/SQL Collections and Records

Q.  Which collection types is also known as index-by tables, lets you look up elements using arbitrary numbers and strings for subscript values?
- Published on 08 Jul 15

a. Associative arrays
b. Nested tables
c. Varrays
d. None of the above

ANSWER: Associative arrays
 
The associative arrays helps us to look up to the elements using arbitary numbers and strings for subscript values. They are similar to hash tables.

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