In an ordered index, index entries are stored sorted on the search key value. Clustering index: in a sequentially ordered file, the index whose search key specifies the sequential order of the file. The …

The indexing schemes we have described thus far involve an ordered index file. A binary search is applied to the index to locate pointers to a disk block or to a record (or records) in the file having a …

Includes one index entry for each distinct value of the field; the index entry points to the first data block that contains records with that field value. It is another example of nondense index where Insertion …

If even outer index is too large to fit in main memory, yet another level of index can be created, and so on Indices at all levels must be updated on insertion or deletion from the file

index - access structure used to speed up retrieval of recoreds external to the data allows quick access to a record using a specified field as a search criterion

Files of Ordered Records (Sorted Files) :Sequential File Organization The easiest method for file Organization is Sequential method.In this method the file are stored one after another in a sequential …

Ideal hash function is random, so each bucket will have the same number of records assigned to it irrespective of the actual distribution of search-key values in the file.