CBSE Class 12 Informatics Practices Getting Started With Pl SQL Notes

Download CBSE Class 12 Informatics Practices Getting Started With Pl SQL Notes in PDF format. All Revision notes for Class 12 Informatics Practices have been designed as per the latest syllabus and updated chapters given in your textbook for Informatics Practices in Class 12. Our teachers have designed these concept notes for the benefit of Class 12 students. You should use these chapter wise notes for revision on daily basis. These study notes can also be used for learning each chapter and its important and difficult topics or revision just before your exams to help you get better scores in upcoming examinations, You can also use Printable notes for Class 12 Informatics Practices for faster revision of difficult topics and get higher rank. After reading these notes also refer to MCQ questions for Class 12 Informatics Practices given on studiestoday

Revision Notes for Class 12 Informatics Practices Getting Started With Pl SQL

Class 12 Informatics Practices students should refer to the following concepts and notes for Getting Started With Pl SQL in Class 12. These exam notes for Class 12 Informatics Practices will be very useful for upcoming class tests and examinations and help you to score good marks

Getting Started With Pl SQL Notes Class 12 Informatics Practices

CBSE Class 12 Informatics Practices Getting Started With pl sql study notes. Learning the important concepts is very important for every student to get better marks in examinations. The concepts should be clear which will help in faster learning. The attached concepts made as per NCERT and CBSE pattern will help the student to understand the chapter and score better marks in the exaages.minations.

GETTING STARTED WITH PL/SQL

SQL Vs PL/SQL:

Limitations of SQL are:
• No procedural capabilities .
• Time Consuming Processing or Network traffic.
• No Error Handling Routines/Procedures.

Advantages of PL/SQL are:

•Procedural Capabilities.

• Reduced Network Traffic.
• Error Handling Procedures/Routines.
• Facilitates Sharing.
• Improved Transaction Performance.
• Portable Code.

ANCHORED DECLARTION:
It refers to a declaration where a variable is declared with another variable or a table column used as its anchor.
PL/SQL use %TYPE declaration attribute for anchoring.

Ex: num1      NUMBER(5);
num2             num1%TYPE;
empsal          Emp.Salary%TYPE;

Note: Anchored types are evaluated at compile time.Thus,you need to recompile the change of
underlying type in the anchored variable.

TYPES OF PL/SQL VARIABLES:
• Local Variables.
• Substitution Variables.
• Bind or Host Variables.

PL/SQL BLOCK STRUCTURES:

DECLARE
/* definitions of

BEGIN

[EXCEPTION]

END;

TYPES OF BLOCKS:
• Anonymous Blocks: Blocks without headers.
• Named Blocks: Blocks having headers or labels like procedure,functions,packages or triggers.

PL/SQL CONTROL STRUCTURES:
• Sequence
• Selection
• Iteration.

SELECTION CONSTRUCT: (Condition Testing or Decision Making Statements)

1. Simple IF:-

Syntax:
       IF THEN
       Statement
       END IF;

Example:
DECLARE
a number;
BEGIN
a :=&a;
if a>100 THEN
dbms_output.put_line(a);
END IF;

2. IF…THEN…ELSE…END IF:-

Syntax:
       IF THEN
       Statement1;
       ELSE
       Statement2;
       END IF;
Example:

DECLARE
a number;
b number;
BEGIN
a :=&a;
b :=&b;
if a>b THEN
dbms_output.put_line(a);
ELSE
dbms_output.put_line(b);
END IF;

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CBSE Class 12 Informatics Practices Getting Started With Pl SQL Notes

We hope you liked the above notes for topic Getting Started With Pl SQL which has been designed as per the latest syllabus for Class 12 Informatics Practices released by CBSE. Students of Class 12 should download and practice the above notes for Class 12 Informatics Practices regularly. All revision notes have been designed for Informatics Practices by referring to the most important topics which the students should learn to get better marks in examinations. Studiestoday is the best website for Class 12 students to download all latest study material.

Notes for Informatics Practices CBSE Class 12 Getting Started With Pl SQL

Our team of expert teachers have referred to the NCERT book for Class 12 Informatics Practices to design the Informatics Practices Class 12 notes. If you read the concepts and revision notes for one chapter daily, students will get higher marks in Class 12 exams this year. Daily revision of Informatics Practices course notes and related study material will help you to have a better understanding of all concepts and also clear all your doubts. You can download all Revision notes for Class 12 Informatics Practices also from www.studiestoday.com absolutely free of cost in Pdf format. After reading the notes which have been developed as per the latest books also refer to the NCERT solutions for Class 12 Informatics Practices provided by our teachers

Getting Started With Pl SQL Notes for Informatics Practices CBSE Class 12

All revision class notes given above for Class 12 Informatics Practices have been developed as per the latest curriculum and books issued for the current academic year. The students of Class 12 can rest assured that the best teachers have designed the notes of Informatics Practices so that you are able to revise the entire syllabus if you download and read them carefully. We have also provided a lot of MCQ questions for Class 12 Informatics Practices in the notes so that you can learn the concepts and also solve questions relating to the topics. All study material for Class 12 Informatics Practices students have been given on studiestoday.

Getting Started With Pl SQL CBSE Class 12 Informatics Practices Notes

Regular notes reading helps to build a more comprehensive understanding of Getting Started With Pl SQL concepts. notes play a crucial role in understanding Getting Started With Pl SQL in CBSE Class 12. Students can download all the notes, worksheets, assignments, and practice papers of the same chapter in Class 12 Informatics Practices in Pdf format. You can print them or read them online on your computer or mobile.

Notes for CBSE Informatics Practices Class 12 Getting Started With Pl SQL

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