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

What is use case and use case diagram, What is use case and use case diagra...

What is use case and use case diagram? A use case is a coherent piece of functionality that a system can give by interacting with actors. Use case includes one or more actors a

Hashing, what is hashing in database management system?

what is hashing in database management system?

Pipeline, where can I find detailed explanation of 6 stage and 7 stage pipe...

where can I find detailed explanation of 6 stage and 7 stage pipeline ??

Explain about merge sort circuit, Q. Explain about Merge sort circuit? ...

Q. Explain about Merge sort circuit? First split the given sequence of n numbers in two parts every part comprising of n/2 numbers. Afterwards recursively divide the sequence i

Architecture of world wide web with the basic entities, Explain architectur...

Explain architecture of World Wide Web with the basic entities. The architecture of the World Wide Web, demonstrated below, is the one of clients, as like Netscape, Lynx or Int

What is sensitivity list, What is sensitivity list? A list of signals w...

What is sensitivity list? A list of signals which trigger execution of the block when they change value. Sensitivity list  indicates that when a change occurs to any one of

Types of policies in e-commerce, 1- The Privacy Policy: The vendor must...

1- The Privacy Policy: The vendor must explain to the customer how all his information especially sensitive ones will be totally private, and no one can read them or use them i

Show the programmes for parallel systems, Q. Show the Programmes for Parall...

Q. Show the Programmes for Parallel Systems? Adding elements of an array using two processor      int sum, A[ n] ;  //shared variables

What are the exceptions encountered for fp operation, What are the exceptio...

What are the exceptions encountered for FP operation? The exceptions encountered for FP operation are overflow, underflow. /0, inexact and invalid values.

What is mask operation, What is MASK OPERATION The mask operation is si...

What is MASK OPERATION The mask operation is similar to selective-clear operation except which the bits of Aare cleared only where there are corresponding 0's in register B. th

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