In simple terms, Storing the files in certain order is called file Organization.
versatile data structure – sequential as well as random access; access is fast; supports exact, ...
Indexes offer substantial benefits when searching for records
Disadvantage of indexed-sequential files
The data elements are stored as ascending or descending order based upon the ...
Advantages. • Sequential files are appropriate if pattern of access matches ordering of records on the file. Disadvantages. • Rarely used to implement database ...
Con: sequential scan using a secondary index is expensive
There are few problems if we are just adding records to the end of a file, but if ...
Here, the record will be inserted in the order in which they are inserted into tables.
B-Tree Index; Advantages of Indexing; Disadvantages of Indexing