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

Ann representation, ANN Representation: Mostly 'ANNs' are taught on "A...

ANN Representation: Mostly 'ANNs' are taught on "AI" courses since their motivation from brain studies and the fact which they are used in an "AI" task and namely machine lear

Project, give sample prepaired software?

give sample prepaired software?

Translation table encryption technique to secure transaction, Discuss about...

Discuss about Translation table encryption technique to ensure secured transactions onto the net? Translation table: In this process each chunk of data is used like an of

-bit comparator using combinational logic, Design a 4-bit comparator using ...

Design a 4-bit comparator using combinational logic, and Karnaugh Maps. The inputs of the circuit are two 2-bit numbers. a) Construct the truth table given 2-bits inputs A and B, a

Data bus is bidirectional, Why address bus is unidirectional and data bus i...

Why address bus is unidirectional and data bus is bidirectional? Ans) Because there is no require address transaction among processor and peripheral device but data bus is req

Explain rmtrack, Highlights of the RMTrack application: ? Web based ac...

Highlights of the RMTrack application: ? Web based access permits your users to access the database from anywhere. ? Available as a hosted solution or a download for local in

Obtain 1''s and 2''s complement, Obtain 1's and 2's complement of 1010 usin...

Obtain 1's and 2's complement of 1010 using only four-digit representation. Solution: 1's complement: 1's complement of 1010 is  Please note that wherever you ha

Explain about the e-commerce over extranets, Explain about the e-commerce o...

Explain about the e-commerce over extranets. Extranets are regarding “joining up” the supply chain-suppliers, distributors, resellers and customers are enabling business-to bus

Define overflow, Define Overflow.  An overflow is a problem in digital ...

Define Overflow.  An overflow is a problem in digital computer due to the width of registers is finite. A result that contains n+ 1 bit cannot be accommodated in a register wit

Explain XLAT instruction with help of example, Q. Explain XLAT instruction ...

Q. Explain XLAT instruction with help of example? Let's presume a table of hexadecimal characters signifying all 16 hexadecimal digits in table: HEXA      DB      '012345678

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