Read and download the Tables And Exception Propagation PDF from the official NCERT Book for Class 12 Informatics Practices. Updated for the 2025-26 academic session, you can access the complete Informatics Practices textbook in PDF format for free.
NCERT Class 12 Informatics Practices Tables And Exception Propagation Digital Edition
For Class 12 Informatics Practices, this chapter in CBSE Book Class 12 Informatics Practices Tables And Exception Propagation provides a detailed overview of important concepts. We highly recommend using this text alongside the NCERT Solutions for Class 12 Informatics Practices to learn the exercise questions provided at the end of the chapter.
Tables And Exception Propagation NCERT Book Class Class 12 PDF (2025-26)
Chapter – 3
Tables And Exception Propagation
(Informatics Practices)
PL/SQl TABLEs combine characteristics of SQL tables and C/Pascal arrays.
Like SQL tables:
- consist of records (must have a numeric primary key)
- can grow/shrink as elements are added/removed
Exceptions
An exception is an unusual/erroneous condition encountered during execution:
- system error (e.g. "out of memory")
- error caused by user program
- warning issued by application
PL/SQL's exception handling allows these to be handled "cleanly" in a central place.
Syntax for exception handlers:
BEGIN
... Statements ...
EXCEPTION
WHEN ExcepName1 THEN Statements1;
WHEN ExcepName2 THEN Statements2;
...
END;
If an error occurs in Statements, control is transferred to:
- the exception handler in this block
- the exception handler at the next enclosing block
- ... and so on out to the system level
Example: Computing stock-market price/earnings ratio
DECLARE
pe_ratio NUMBER(5,1);
BEGIN
SELECT price/earnings INTO pe_ratio
FROM StocksWHERE company_name = 'Acme';
INSERT INTO Statistics(co_name, ratio)
VALUES ('Acme', pe_ratio);
COMMIT;
EXCEPTION
WHEN ZERO_DIVIDE THEN -- divide-by-zero errors
INSERT INTO Statistics(co_name, ratio)
VALUES ('Acme', 0.0);
-- other exception handlers
END;
Please refer to attached file for CBSE Classs 12 Informatics Practices Tables And Exception Propagation
| CBSE Book Class 12 Informatic Practices Querying and SQL Functions |
| CBSE Book Class 12 Informatic Practices Data Handling using Pandas I |
| CBSE Book Class 12 Informatic Practices Data Handling using Pandas II |
| CBSE Book Class 12 Informatic Practices Plotting Data using Matplotlib |
| CBSE Book Class 12 Informatic Practices Internet and Web |
| CBSE Book Class 12 Informatic Practices Societal Impacts |
| CBSE Book Class 12 Informatic Practices Project Based Learning |
Important Practice Resources for Class 12 Informatics Practices
NCERT Book Class 12 Informatics Practices Tables And Exception Propagation
Download the official NCERT Textbook for Class 12 Informatics Practices Tables And Exception Propagation, updated for the latest academic session. These e-books are the main textbook used by major education boards across India. All teachers and subject experts recommend the Tables And Exception Propagation NCERT e-textbook because exam papers for Class 12 are strictly based on the syllabus specified in these books. You can download the complete chapter in PDF format from here.
Download Informatics Practices Class 12 NCERT eBooks in English
We have provided the complete collection of NCERT books in English Medium for all subjects in Class 12. These digital textbooks are very important for students who have English as their medium of studying. Each chapter, including Tables And Exception Propagation, contains detailed explanations and a detailed list of questions at the end of the chapter. Simply click the links above to get your free Informatics Practices textbook PDF and start studying today.
Benefits of using NCERT Class 12 Textbooks
The Class 12 Informatics Practices Tables And Exception Propagation book is designed to provide a strong conceptual understanding. Students should also access NCERT Solutions and revision notes on studiestoday.com to enhance their learning experience.
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Downloading chapter-wise PDFs for Class 12 Informatics Practices allows for faster access, saves storage space, and makes it easier to focus in 2026 on specific topics during revision.
NCERT books are the main source for NCERT exams. By reading CBSE Book Class 12 Informatics Practices Tables And Exception Propagation line-by-line and practicing its questions, students build strong understanding to get full marks in Informatics Practices.