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

Write a program using linq to find the sum of first 5 prime , Class Program...

Class Program { static void Main() { int[] MyPrimeNumbers = {1,2,3,5,7}; // Use the Count() and Sum() Standard Query Operators to // compute the count an whole su

Explain bitwise-exclusive-or operator, Bitwise-Exclusive-OR Operator: ^ ...

Bitwise-Exclusive-OR Operator: ^ exclusive-OR-expression : AND-expression exclusive-OR-expression ^ AND-expression The  bitwise-exclusive-OR  operator  (^)  compares

Explain extended binary coded decimal interchange code, Q. Explain Extended...

Q. Explain Extended Binary Coded Decimal Interchange Code? Extended Binary Coded Decimal Interchange Code (EBCDIC) is a character-encoding format employed by IBM mainframes. It

What is functions indention, Use tabs to bring some structure into your fun...

Use tabs to bring some structure into your function body if(nPos > 1) then nRetrun = True else nRetrun = False end if

Microprocessor MIPS Full Adder and Divider with overflow, I need to write a...

I need to write a 32 bit adder in MIPS without using the Add command and a divider as well.

Example of finding cross points and switches, For a non blocking crossbar c...

For a non blocking crossbar configuration, taking N as the number of subscribers, there will be               number of cross points and _             number of switches for est

Minterms, A minterm is an AND expression involving all input variables in e...

A minterm is an AND expression involving all input variables in either inverted or non-inverted form.For one particular row the associated mintermis the only minterm which equals l

Control unit (cu)-array processing, Control Unit (CU)  : Every PEs are unde...

Control Unit (CU)  : Every PEs are under the control of one control unit. CU controls the inter communication among the PEs. There is a local memory of CU also known as CY memory.

What is a digital comparator, What is a digital comparator? Ans: ...

What is a digital comparator? Ans: Digital Comparator: The comparison of two numbers is an operation which evaluates if one number is greater than, less than, or equival

What is public key cryptography, What is Public Key Cryptography Publi...

What is Public Key Cryptography Public-key cryptography is a form of modern cryptography which permits users to communicate safely without lastly agreeing on a shared secret

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