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Free and Open Source Software

CBSE Class 12 Information practices Chapter 1 Free and Open Source Software Revision notes it includes revision notes such as It means a software which is freely accessible, free to use, changed, improved, copied, distributed without any payments. Free software is a program used and distributed at no charge to the user.  Richard Stallman, founder of the Free software movment (2009).

Adv. Prog. Dev. Methodology

CBSE Class 12 Information practices Chapter 2 Adv. Prog. Dev. Methodology Revision notes it includes revision notes such as System software is a type of computer program that is designed to run a computer’s hardware and application software. The operating system (OS) is the best-known example of system software. The OS manages all the other programs in a computer.

Advanced Database Technologies

CBSE Class 12 Information practices Chapter 3 Advanced Database Technologies Revision notes it includes revision notes such as The term data warehouse was coined with the definition of Inmon: "A warehouse is a subject- oriented, integrated, time variant and non-volatile collection of data in support of management's decision making process". 

Visual Basic Revision Tour

CBSE Class 12 Information practices Chapter 4 Visual Basic Revision Tour Revision notes it includes revision notes such as The visual basic 6.0 provides some standard controls on its control box which are known as intrinsic control. These are built-in controls and are contained in Visual basic .EXE file.

Visual Basic Control Structures

CBSE Class 12 Information practices Chapter 5 Visual Basic Control Structures Revision notes it includes revision notes such as Control structures allow you to regulate the flow of your program's execution. Using control structures, you can write Visual Basic code that makes decisions or that repeats actions.

Procedures, Functions and Modules

CBSE Class 12 Information practices Chapter 6 Procedures, Functions and Modules Revision notes it includes revision notes such as  In computer programming, a procedure is a set of coded instructions that tell a computer how to run a program or calculation. Many different types of programming languages can be used to build a procedure.

Library Functions

CBSE Class 12 Information practices Chapter 7 Library Functions Revision notes it includes revision notes such as Library functions are those In-build functions that are already available in VB. In particular, all input and output operations (e.g., writing to the terminal) and all math operations (e.g., evaluation of sines and cosines) are implemented by library functions. 

Visual Basic Interface Styles

CBSE Class 12 Information practices Chapter 8 Visual Basic Interface Styles Revision notes it includes revision notes such as Interfaces describe the characteristics of properties, methods, and events, but leave the implementation details up to structures or classes.

Databases and ADO, OLEDB & ODBC

CBSE Class 12 Information practices Chapter 9 Databases and ADO, OLEDB & ODBC Revision notes it includes revision notes such as Open Data Base Connectivity refers to a standard protocol that permits applications to connect to a variety of external database servers or files.

Oracle Sql Revision Tour

CBSE Class 12 Information practices Chapter 10 Oracle Sql Revision Tour Revision notes it includes revision notes such as  SQL is a query language that allows user to specify the conditions. (instead of algorithms). SQL stands for Structured Query Language. It is the standard language for relational database management systems.

Database Fundamentals

CBSE Class 12 Information practices Chapter 11 Database Fundamentals Revision notes it includes revision notes such as A transaction can be defined as a group of tasks. A transaction is a logical unit of work(LUW) that must succeed or fail in its eternity. A user views a transaction as a logical sequence of read and write operations whereas The system views a transaction as a logical sequence of read and write operations.

Getting Started with PL/SQL

CBSE Class 12 Information practices Chapter 12 Getting Started with PL/SQL Revision notes it includes revision notes such as PL/SQL is a combination of SQL along with the procedural features of programming languages. It was developed by Oracle Corporation in the early 90's to enhance the capabilities of SQL.

Interacting with Databases

CBSE Class 12 Information practices Chapter 13 Interacting with Databases Revision notes it includes revision notes such as Cursor is a method that provides a way to select multiple rows of data from the database and then process each row individually inside the PL/SQL program.

Creating Procedures

CBSE Class 12 Information practices Chapter 14 Creating Procedures Revision notes it includes revision notes such as Procedures makes the program modular and each module performs a specific function or task. Modular programming approach makes the program readable, manageable, reusable and reliable.

Triggers

CBSE Class 12 Information practices Chapter 15 TRIGGERS Revision notes it includes revision notes such as A trigger is a stored procedure that defines an action the database automatically initiates when some database related events such as INSERT, UPDATE OR DELETE occurs. A trigger is a special kind of stored procedure that automatically executes when an event occurs in the database server.



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