Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Define and differentiate between ordered indexing and hashing.
Ans: Ordered indexing: To gain fast random access to records in a file, we can make of an index structure. Every index structure is related with a specific search key. An ordered index stores the values of the search keys in sorted order and relates with each search key records which contain it. The records in the indexed file may themselves be stored in some sorted order. A file may have various indices on different search keys.
Hashing: It as well provides a way of constructing indices. In hashing, the address of the disk lock consisting of a desired record directly is computed by a function on the search-key value of the record.
Differentiate among the ordered indexing and hashing: Ordered indexing is stored in sorted order while in Hashing search keys are distributed consistently across "buckets" using 'hash function'.
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
Consider the ER schema below for the MoneyMaking supermarket chain problem. Translate the given ER schema into SQL CREATE TABLE statement.
What are the various properties of Relational tables? Relational tables have 6 properties: 1. Each row is unique. 2. Column values are of the same kind. 3. Values are
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
Add generation capabilities and/or tailor the built-in functionality of generator. This enables you to produce "all" the test data for the MySQL tables you produced in the previous
01a_Broadway_LastFirst_yyyy-mm-dd Capstone Exercises You work as a production assistant in the office of the Green Man Theatre. One of your duties is to maintain the company datab
Candidate Key: In a relation R, a candidate key for R is a subset of the set of attributes of R, which have the differnt two properties: (1) Uniqueness: N
List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
Introduction In large projects, we can have many different companies working together. Generally, the project or contract is awarded to one company (Principal Contractor), which
1 - Serial RS232 comm port comunication 2 - NanoHTTPD serving a few processed pages 3 - System tray application to indicate status and access configuration forms 4 - SQLit
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd