Cursor: The term cursor is used to retrieve information in row by row fashion. If the records stored in the database table, which needs to be updated one row at a time is carried over by cursor. It plays the major role in fetching a required row from the table in the database which holds numerous records. Cursors are defined using SELECT statement. It points the set of rows which is resulted from an SQL SELECT statement. In general the cursor is placed in the first or last row. It influences the performance of the SQL Server as it uses the SQL server instances memory, decrease network bandwidth, reduction in concurrency. It’s recommended to avoid the use of cursor and the cursor can be replaced with WHILE loop, temporary tables, sub queries. Types of cursor: The types of cursor are listed below: Forward-only cursor Static cursor Dynamic cursor Keyset cursor

Question

Want to see the full answer?

Answer 1

Question

Chapter 6, Problem 6.30RQ

Program Plan Intro

Cursor:

The term cursor is used to retrieve information in row by row fashion. If the records stored in the database table, which needs to be updated one row at a time is carried over by cursor.

It plays the major role in fetching a required row from the table in the database which holds numerous records.

Cursors are defined using SELECT statement.

It points the set of rows which is resulted from an SQL SELECT statement.

In general the cursor is placed in the first or last row.

It influences the performance of the SQL Server as it uses the SQL server instances memory, decrease network bandwidth, reduction in concurrency.

It’s recommended to avoid the use of cursor and the cursor can be replaced with WHILE loop, temporary tables, sub queries.

Types of cursor:

The types of cursor are listed below:

Forward-only cursor

Static cursor

Dynamic cursor

Keyset cursor

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

what are some available cloud components, types, delivery models, and configurations in web services and cloud computing? thanks

I would like to get information to know features about the following concepts: 1. Anything as a Server (XaaS) 2. Block Storage 3. WebSocket

Please answer JAVA OOP problem below: You are working at a university that tracks students. Each student is identified by their name and faculty advisor. Each faculty advisor is identified by their name, department, and maximum number of students they can advise. Using solid OO design principles, create a modular program that implements all the classes for the problem and also creates an implementation class that gathers user input for one student and then prints out the information gathered by creating the appropriate data definition and implementation classes. All data must be validated. I have given the code so far: Implementation: import javax.swing.JOptionPane; public class Implementation { public static void main(String[] args) { FacultyAdvisor facultyAdvisor = new FacultyAdvisor("Sharmin Sultana", "IT", 30); Student student = new Student("John", facultyAdvisor); JOptionPane.showMessageDialog(null, student.toString()); } } Student: public…