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

How many flip flops are required to construct decade countr, How many flip ...

How many flip flops are required to construct a decade counter ? Ans. 4 FlipFlop's are required because decade counter counts 10 states from 0 to 9 (that is from 0000 to 1001).

State and describe the iros subsystems, Question: (a) iRoom was constru...

Question: (a) iRoom was constructed based on the guiding principles listed below, discuss on each one of those principles with respect to why the specific principle was adopted

Artificial neural networks - artificial intelligence, Artificial Neural Net...

Artificial Neural Networks - Artificial intelligence: Decision trees, while strong, are a easy representation method. While graphical on the surface, they may be seen as disjun

What is internal path length, Internal Path length It is described as t...

Internal Path length It is described as the number of node traversed while moving by one particular node to any other node in the tree.

What are the different types of bios, The  most common types are the AWARD,...

The  most common types are the AWARD,AMI, AND phoenix

What is meant by latch, Latch is a D- type flip-flop used as a temporary st...

Latch is a D- type flip-flop used as a temporary storage device controlled by a timing signal, which can kept 0 or 1. The primary function of a Latch is data storage. It is used in

Name the variable types of c, C provides a wide range of variable types. ...

C provides a wide range of variable types. Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Define rotational latency and disk bandwidth, Define rotational latency and...

Define rotational latency and disk bandwidth. Rotational latency is the additional time waiting for the disk to rotate the desired sector to the disk head. The disk bandwidth i

What is synchronous message passing, Q. What is Synchronous message passing...

Q. What is Synchronous message passing? In Synchronous message passing is executed on synchronous communication network.  In that case sender and receiver processes should be

Explain how sap gui handles output screen for the user, Explain how SAP GUI...

Explain how SAP GUI handles output screen for the user. The SAP front-end s/w can either run on the similar computer or on dissimilar computers given for that purpose.  User t

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