This is the most appropriate type for any table where the main operation is key access. You cannot access a hashed table using its index. The response time for key access remains constant, regardless of the number of table entries. Like database tables, hashed tables always have a unique key. Hashed tables are useful if you want to construct and use an internal table which resembles a database table or for processing large amounts of data.
Syntax of hashed table is :
DATA: ITAB LIKE HASHED TABLE OF MARA INITIAL SIZE 0 WITH HEADER LINE.
Reward if useful