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

Difficulties - canonical genetic algorithm, Difficulties - canonical geneti...

Difficulties - canonical genetic algorithm: Therefore the first big problem we face whether designing an "AI" agent to perform a GA-style search is how to represent the soluti

Explain various classes of datatypes of c, Explain various classes of datat...

Explain various classes of datatypes of C   Following are the main classes of data types in C language: 1.  Primary data types: Also called as fundamental/basic data types

Summary of tasks, Summary of Tasks The Task Summary tries to shows the ...

Summary of Tasks The Task Summary tries to shows the amount of duration each task has spent starting from initialization of the task till its completion on any processor as d

Computer networks, distributed & centralized system in computer network

distributed & centralized system in computer network

What is the use of fork and exec system calls, What is the use of fork and ...

What is the use of fork and exec system calls?  Fork is a system call by which a new process is formed. Exec is also a system call, which is used after a fork by one of the two

Explain the architectural framework for electronic commerce, Explain the Ar...

Explain the Architectural framework for electronic commerce. An application independent framework to categorize service interaction relies on four basic dimensions   1.  Ser

What can digital circuits do?, Circuits can be designed to implement a spec...

Circuits can be designed to implement a specifictaske.g. a simple circuit could compare two inputvoltages and give a high output if they matched anda low output if they did not mat

What is verilog function, What is Verilog function - A function is una...

What is Verilog function - A function is unable to enable a task however functions can enable other functions. - A function would carry out its required duty in zero simula

Design a 3-bit counter using sequential logic, Q. Design a 3-bit counter us...

Q. Design a 3-bit counter using sequential logic with following counting sequence using JK- flip-flops which counts the sequence 0, 3, 2, 7, 5 and repeat.

Why we use debugger, Q. Why we use Debugger? Debugger is a program whic...

Q. Why we use Debugger? Debugger is a program which allows the user to test as well as debug the object file.  Theuser can use this program to perform subsequent functions.

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