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

Define password methods and biometric systems, Define the password methods ...

Define the password methods and Biometric systems for implementing client server network security. In cyberspace, buyers and sellers cannot notice each other. Also within video

Describe about the embedded applications assembly, Describe about the Embed...

Describe about the Embedded applications assembly Embedded applications assembly and C programs are developed since embedded programs aren't large. For all others high-level an

Why cyclomatic complexity is important, Why cyclomatic complexity is import...

Why cyclomatic complexity is important? Cyclomatic complexity is computed using a graph that verifies the control flow of the program. The nodes of the graph correspond to the

Determine condition how the output changed of JK flipflop, The output of a ...

The output of a JK flipflop with asynchronous preset and clear inputs is '1'. The output can be changed to '0' with which conditions ? Ans. Through applying J = 1, K = 1 and u

Create perl scripts, Create Perl scripts as required below: a) Create a ...

Create Perl scripts as required below: a) Create a script named select_by_attribute.pl that accepts the name of a LibML documentand the name of a particular attribute from the c

Algorithem, for calculating simple interest

for calculating simple interest

C++, explain parallel database system

explain parallel database system

.., 1mechanism of artificial satellite

1mechanism of artificial satellite

What is dynamic memory allocation, What is dynamic memory allocation? T...

What is dynamic memory allocation? The mechanism of allocating needs amount of memory at run time is known as dynamic allocation of memory. Sometimes it is needed to allocate m

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