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

Applications of microprogramming - computer architecture, Applications of M...

Applications of Microprogramming: Microprogramming application:: emulation o   Use of a micro program on 1 machine to execute programs initially written to run on ano

Voice identifier - biometric computer security systems, Voice Identifier - ...

Voice Identifier - Biometric Computer Security Systems Besides fingerprint, another popular security technology is voice identifier. According to VSS organization (2007), voic

Arithmetic-logic section in computer system, Arithmetic-logic section in co...

Arithmetic-logic section in computer system: The   arithmetic-logic section performs arithmetic   operations, such subtraction, addition, multiplication, and division. Throug

Changing the system prompt, Q. Changing the System Prompt? When you cha...

Q. Changing the System Prompt? When you change the directory, you would like to keep track of it. The best way to do this is by displaying the name of the current directory alo

Explain public key encryption, Public Key Encryption A cryptographic sy...

Public Key Encryption A cryptographic system that uses two-keys-a public  key known to everyone and a private or secret key known only to the recipient of the message. An si

Implementing recursive function the data structure, For executing recursive...

For executing recursive function the data structure used is: For executing recursive function, stack is used as a data structure.

Translate sentence into predicate logic - ai, Translate the following sente...

Translate the following sentences into predicate logic, using identity (=). a. Everyone was drunk except John. b. Christine rides a bike, but everyone else drives a car. c

What is clearquest, Rational ClearQuest is a change-request management tool...

Rational ClearQuest is a change-request management tool that tracks and handles defects and change requests all through the development process. With ClearQuest, you can manage eac

Collective communications - broadcast, Q. Collective Communications - Broad...

Q. Collective Communications - Broadcast? Broadcast: Broadcasting can be done in two ways one of them is one to all and another one is all to all. In the matter of one to all b

Different elements of a collaboration diagram, ? Object: The interaction am...

? Object: The interaction among objects takes place in a system. An object is depicted by a rectangle with the name of the object, preceded by a colon and underline. ? Relation

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