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

Why isdn handles data pertaining, ISDN handles data pertaining to? ISDN...

ISDN handles data pertaining to? ISDN handles data pertaining to all digital services.

fisherpersons are not over-fishing, Prepare the Relational Tables to signi...

Prepare the Relational Tables to signify the following situation, which is defined by means of text and an Entity Relationship Diagram. Note: Do not attempt to vary the ERD. Yo

Illustration of code conversion, Program: A good illustration of code conve...

Program: A good illustration of code conversion: Write a program to convert a; 4-digit BCD number into its binary equivalent. BCD number is stored as a; word in memory location kno

Bi polar junction transistor, draw input and output charectoristics of BJT ...

draw input and output charectoristics of BJT and justify CE configuration provides large current amplification

C program, a c program to implement multiple stack in a single array

a c program to implement multiple stack in a single array

Illustrate the disadvantages of wireless technology, Disadvantages of wirel...

Disadvantages of wireless technology -  Range can be very limited -  Possible interference from nearby electronic devices -  Security issues (i.e. tapping illegally into

A global variable is a variable, A global variable is a variable A globa...

A global variable is a variable A global variable is declared outside the body of each function.

What is the function of an ip packet screening router, Function of an IP Pa...

Function of an IP Packet Screening Router: A screening router is the most basic type of firewall and uses only the packet filtering capability to control and monitor network tr

Explain bit slice ALUs, Bit Slice ALUs It was possible to manufacture ...

Bit Slice ALUs It was possible to manufacture smaller like 4 or 8 bits fixed point ALUs on a single IC chip. If these chips are constructed as expendable types then employing

Explain about annotational notations, Explain about Annotational Notations ...

Explain about Annotational Notations These notations may be applied to describe remark and illuminate about any element in the model. They are considered as explanatory of U

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