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Exception Handling & Generate Functions Here is the CBSE Help.html Chapter 8 for Class 12 students. Summary and detailed explanation of the lesson, including the definitions of difficult words. All of the exercises and questions and answers from the lesson's back end have been completed. NCERT Solutions for Class 12 Help.html Exception Handling & Generate Functions Chapter 8 NCERT Solutions for Class 12 Help.html Exception Handling & Generate Functions Chapter 8 The following is a summary in Hindi and English for the academic year 2025-26. You can save these solutions to your computer or use the Class 12 Help.html.
Write Addnew(Book) and Remove(Book) methods in Python to Add a new Book and Remove a Book from a List of Books, considering them to act as PUSH and POP operations of the data structure Stack.
class stack:
Book=[]
def Addnew(self):
Name=input('Enter Book Name :')
stack.Book.append(Name)
def Remove(self):
if (stack.Book==[]):
print 'Stack Empty'
else:
print 'Deleted Book is : ',stack.Book.pop()Observe the following table CANDIDATE carefully and write the name of the RDBMS operation out of (i) SELECTION (ii) PROJECTION (iii) UNION (iv) CARTESIAN PRODUCT, which has been used to produce the output as shown in RESULT ? Also,find the Degree and Cardinality of the RESULT.
TABLE: CANDIDATE
| No | NAME | STREAM |
| C1 | AJAY | LAW |
| C2 | ADITI | MEDICAL |
| C3 | ROHAN | EDUCATION |
| C4 | RISHAB | ENGINEERING |
RESULT
| No | NAME |
| C3 | ROHAN |
Observe the following table carefully and write the names of the most appropriate columns, which can be considered as (i) candidate keys and (ii) primary key.
| Id | Product | Qty | Product | Transaction Date |
| 101 | Plastic Folder 12' | 100 | 3400 | 2014-12-14 |
| 104 | Pen Stand Standard | 200 | 4500 | 2015-01-31 |
| 105 | Stapler Medium | 250 | 1200 | 2015-02-28 |
| 109 | Punching Machine Big | 200 | 1400 | 2015-03-12 |
| 103 | Stapler Mini | 100 | 1500 | 2015-02-02 |
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