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

Describe the limitation of fat16, Q. Describe the Limitation of FAT16? ...

Q. Describe the Limitation of FAT16? DOS designers decided to use clusters with as a minimum four sectors in them (so a cluster size of at least 2KB) for all FAT16 hard disks.

Challenges facing operations managers - information systems, Challenges Fac...

Challenges Facing Operations Managers - Information Systems While information systems should be seen as tools that enable better performance their implementation also brings a

Determine the octal equivalent of decimal number, The octal equivalent of (...

The octal equivalent of (247) 10 is ? Ans. (247) 10 = (367) 8

Equivalence between vhdl and c, Equivalence between VHDL and C? There i...

Equivalence between VHDL and C? There is concept of understanding in C there is structure.Based upon requirement structure provide facility to store collection of various data

Explain the low level language - computer programming, Explain the Low Leve...

Explain the Low Level Language - Computer Programming? An assembly language or a machine language is known as Low-level language which are closer to the hardware than are high-

Estate agency application, Build U Like are a building company specialising...

Build U Like are a building company specialising in hard landscaping. They lay patios, build walls, lay drives etc. for their customers. A customer will remain in the system even t

Elaborate the memory devices - semiconductor memory, Elaborate the memory ...

Elaborate the memory devices  - Semiconductor memory All of the memory used as main store in a modern computer is applied as semiconductors fabricated on wafers of silicon. Sem

Digital Design, Design a serial 2’s complementer with a shift register and ...

Design a serial 2’s complementer with a shift register and a flip-flop

What is ipc, What is IPC? What are the various schemes available? The t...

What is IPC? What are the various schemes available? The term IPC (Inter-Process Communication) explains various ways by which different process running on some operating syste

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