CBSE COMPUTER SCIENCE
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QUESTION BANK, REFERENCE BOOK, LAB MANUAL , WORKSHEET ETC., PYTHON TEXT BOOK AND REFERENCE BOOKS, 01. ASK QUESTIONS AT https://t.me/joinchat/FJ1noGs-64I0OWI1
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#Searching a Record
import mysql.connector as mcr
cn = mcr.connect(host='127.0.0.1',user='root',password="admin",database="company")
cr = cn.cursor()
print("#"*40)
print(" EMPLOYEE SEARCHING FORM")
print("#"*40)
ans='Y'
while ans.lower()=='y':
eno = int(input("ENTER EMPNO TO SEARCH :"))
query="select * from employee where empno={}".format(eno)
cr.execute(query)
result = cr.fetchall()
if cr.rowcount==0:
print("Sorry! Empno not found ")
else:
print("%10s"%"EMPNO", "%20s"%"NAME","%15s"%"DEPARTMENT","%10s"%"SALARY")
for row in result:
print("%10s"%row[0],"%20s"%row[1],"%15s"%row[2],"%10s"%row[3])
ans=input("SEARCH MORE (Y/N) :")
import mysql.connector as mcr
cn = mcr.connect(host='127.0.0.1',user='root',password="admin")
cr = cn.cursor()
cr.execute("create database if not exists company")
cr.execute("use company")
cr.execute("create table if not exists employee(empno int, name varchar(20), dept varchar(20),salary int)")
cn.commit()
choice=None
while choice!=0:
print("1. ADD RECORD ")
print("2. DISPLAY RECORD ")
print("0. EXIT")
choice = int(input("Enter Choice :"))
if choice == 1:
e = int(input("Enter Employee Number :"))
n = input("Enter Name :")
d = input("Enter Department :")
s = int(input("Enter Salary :"))
query="insert into employee values({},'{}','{}',{})".format(e,n,d,s)
cr.execute(query)
cn.commit()
print("## Data Saved ##")
elif choice == 2:
query="select * from employee"
cr.execute(query)
result = cr.fetchall()
print("%10s"%"EMPNO","%20s"%"NAME","%10s"%"DEPARTMENT","%15s"%"SALARY")
for row in result:
print("%10s"%row[0],"%20s"%row[1],"%10s"%row[2],"%15s"%row[3])
elif choice==0:
cn.close()
print("## Bye!! ##")
else:
print("## INVALID CHOICE ##")
#Program to read content of file
#and display total number of vowels, consonants, lowercase and uppercase characters
f = open("file1.txt")
v=0
c=0
u=0
l=0
o=0
data = f.read()
vowels=['a','e','i','o','u']
for ch in data:
if ch.isalpha():
if ch.lower() in vowels:
v+=1
else:
c+=1
if ch.isupper():
u+=1
elif ch.islower():
l+=1
elif ch!=' ' and ch!='\n':
o+=1
print("Total Vowels in file :",v)
print("Total Consonants in file n :",c)
print("Total Capital letters in file :",u)
print("Total Small letters in file :",l)
print("Total Other than letters :",o)
f.close()
import mysql.connector as mcr
cn = mcr.connect(host='127.0.0.1',user='root',password="admin")
cr = cn.cursor()
cr.execute("create database if not exists company")
cr.execute("use company")
cr.execute("create table if not exists employee(empno int, name varchar(20), dept varchar(20),salary int)")
cn.commit()
choice=None
while choice!=0:
print("1. ADD RECORD ")
print("2. DISPLAY RECORD ")
print("0. EXIT")
choice = int(input("Enter Choice :"))
if choice == 1:
e = int(input("Enter Employee Number :"))
n = input("Enter Name :")
d = input("Enter Department :")
s = int(input("Enter Salary :"))
query="insert into employee values({},'{}','{}',{})".format(e,n,d,s)
cr.execute(query)
cn.commit()
print("## Data Saved ##")
elif choice == 2:
query="select * from employee"
cr.execute(query)
result = cr.fetchall()
print("%10s"%"EMPNO","%20s"%"NAME","%10s"%"DEPARTMENT","%15s"%"SALARY")
for row in result:
print("%10s"%row[0],"%20s"%row[1],"%10s"%row[2],"%15s"%row[3])
elif choice==0:
cn.close()
print("## Bye!! ##")
else:
print("## INVALID CHOICE ##")
Enter the number of students whose data to be stored: 3
Enter the Roll number of the Student : 101
Enter the Name of the Student : APPLE
Enter a mark of the Student :35
Enter the Roll number of the Student : 102
Enter the Name of the Student : ORANGE
Enter a mark of the Student :78
Enter the Roll number of the Student : 103
Enter the Name of the Student : MANGO
Enter a mark of the Student :50
STUDENT DETAIL
101 . ('APPLE', 35)
102 . ('ORANGE', 78)
103 . ('MANGO', 50)
List of students those who are scoring more than 75 Marks
102 . ('ORANGE', 78)
>>>
#Program to create a dictionary which stores rollno,name and marks of the student
#list out students those who are scoring more than 75 Marks
num = int(input("Enter the number of students whose data to be stored: "))
count = 1
stud = dict() #create an empty dictionary
while count <= num:
Roll= int(input("Enter the Roll number of the Student : "))
Name = (input("Enter the Name of the Student : "))
M1=int(input("Enter a mark of the Student :"))
stud[Roll]=(Name,M1)
count += 1
print("\n\nSTUDENT DETAIL")
for k in stud:
print(k,'.',stud[k])
print("List of students those who are scoring more than 75 Marks ")
for k,v in stud.items() :
if v[1]>=75:
print(k,'.',stud[k])
