What is cursor, Computer Engineering

Assignment Help:

What is Cursor?

Cursor is a database object used by applications to manipulate data in a set on a row-by- row basis, instead of the typical SQL commands that operate on all the rows in the set at one time.

In order to work with a cursor we require performing some steps in the following order:

Declare cursor

Open cursor

Fetch row from the cursor

Process fetched row

Close cursor

Deallocate cursor

 


Related Discussions:- What is cursor

Explain what are design patterns, Design Patterns are easy and elegant solu...

Design Patterns are easy and elegant solutions of commonly having problems in software design. Design Patterns make it simpler to reuse successful designs and architectures of expe

Illustrate the categories of micro computers, Illustrate the categories of ...

Illustrate the categories of micro computers Micro computers are usually categorized into desktop models and laptop models.  They are awfully limited in what they can do when c

Add multiple layout cells, Q. Add Multiple Layout Cells ? Next you will...

Q. Add Multiple Layout Cells ? Next you will add three layout cells below the logo cell you just created. Afterwards you will insert page's navigation buttons in these cells.

Explain different system calls for performing different task, Write down di...

Write down different system calls for performing different kinds of tasks. The major types of system calls are given as: Process Control: These kinds of system calls are

Explain message, Differentiate between message switching, packet switching ...

Differentiate between message switching, packet switching and circuit switching Message switching: Recourse computer sends data to switching office that stores the data in

E- commerce technology and web design, In this assignment, you are required...

In this assignment, you are required to develop part of a B2C e-Commerce site which is an online movie reservation system for a multiplex theatre. Through the developed site, the u

State about the data glove, State about the Data Glove  Data glove is u...

State about the Data Glove  Data glove is used to grasp a "virtual" object. The glove is constructed with a series of sensors that detect hand and finger motions. Electromagnet

Explain the transport layer in detail, Explain the transport layer in detai...

Explain the transport layer in detail. Transport Layer: The transport layer controls and makes sure the end-to-end integrity of the data message propagated by the network am

Human intelligence in culture - artificial intelligence, Human intelligence...

Human intelligence in culture: Understand human intelligence in culture  "AI" can be seen as just the latest tool in the philosopher's toolbox for answering questions about

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd