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 are the data types of vhdl, What are the Data types of VHDL VHDL....

What are the Data types of VHDL VHDL. A multitude of language or user defined data types can be used. This may mean dedicated conversion functions are needed to convert object

What must the requirement of designer to get memory capacity, In applicatio...

In applications where the required memory capacity cannot be satisfied by a single available memory IC chip, what should the designer do to meet this requirement? Ans: If th

What is managed extensibility framework, What is managed extensibility fram...

What is managed extensibility framework? Managed extensibility framework (MEF) is a new library that is introduced as a part of .NET 4.0 and Silverlight 4. It helps in extendin

Discuss different mode of centralized stored program control, Explain SPC. ...

Explain SPC. Also discuss the different modes of Centralized SPC In stored program control systems, set of instructions or a program to the computer is stored into its memory a

What is a multiplexer tree, What is a Multiplexer Tree? Ans Multip...

What is a Multiplexer Tree? Ans Multiplexer Tree: The largest available MUX IC is 16 to 1. Meeting the larger input requires there must be a provision to expand this. It

Estimate the circuit switched network, a) Total available bandwidth = 1 Mbp...

a) Total available bandwidth = 1 Mbps = 1000 Kbps Each user requires send data at the rate of = 500 kbps As it is circuit switched network we have to dedicate the bandwidth So the

The spanning tree of connected graph with 10 vertices, The spanning tree of...

The spanning tree of connected graph with 10 vertices have 9 edges of spanning tree of connected graph with 10 vertices

GRID COMPUTING, I NEED THE CODES IN MATLAB FOR RESOURCE ALLOCATION IN GRID ...

I NEED THE CODES IN MATLAB FOR RESOURCE ALLOCATION IN GRID COMPUTING

What do you meant by an expert system, (a) What do you meant by an Expert S...

(a) What do you meant by an Expert System (ES) and explain briefly the essential differences between a Decision Support system and ES. (b) What are decision tables and what are

Explain a macro, Explain a macro Macro is a preprocessor directive, als...

Explain a macro Macro is a preprocessor directive, also called as macro definition takes the following general form:  #define identifier string

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