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 methods used to control traffic flowing in-out, How many methods u...

How many methods used to control traffic flowing into and out of the network by firewall? Firewalls utilize one or more of three ways to control traffic flowing into and out of

Disadvantages of edi(electronic data interchange), Disadvantages  1.  T...

Disadvantages  1.  The X12 standard is so large and general  2.  EDI communications negotiate a technical agreement to explain exactly what subset of EDI they will use

Determine the list of micro-operations, Micro-Operations A micro-operat...

Micro-Operations A micro-operation is an basic operation which is performed on data stored in registers. We can classify micro-operations into four categories: 1. Register t

#project, how to build PVR set-top box using raspberry

how to build PVR set-top box using raspberry

Explain optimizing transformations, Explain optimizing transformations? ...

Explain optimizing transformations? Optimizing transformations: It is a rule for rewriting a segment of a program to enhance its execution efficiency without influencing i

Illustrate about the problem statement, Illustrate about the Problem statem...

Illustrate about the Problem statement Problem statement would not be incomplete, inconsistent and ambiguous. Try to state the requirements precisely and point to point. Do no

State about agp, State about AGP The latest addition to many computer s...

State about AGP The latest addition to many computer systems is the inclusion of accelerated graphics port (AGP). AGP operates at the bus clock frequency of the microprocessor.

Explain the use of structures with pointers., Explain the use of structures...

Explain the use of structures with pointers C permits a pointer to a structure variable. In fact a pointer to a structure is same to a pointer to any other variable. The pointe

Write shorts notes on remote procedure call, Write shorts notes on Remote P...

Write shorts notes on Remote Procedure Call (RPC) The facility whihc was created to help the programmers write client server software is termed as Remote Procedure Call. Within

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