O
COMPUTER PROJECT
INTRODUCTION
NAME: SURYA PRATAP SINGH
CLASS: XII-A1
ROLL NO: 43
SUBJECT: COMPUTER SCIENCE
FATHER’S NAME: MR. KAMLESHWAR SINGH
SCHOOL: RLB SEC-3 VIKAS NAGAR LUCKNOW
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#FUNCTION DEFINITONS
import mysql.connector as msc
conn=msc.connect(user=’root’,host=’localhost’,passwd=’nimish2006’,database=’office’)
cur=conn.cursor()
cur.execute("create table EMPLOYEES(empid int,name varchar(20),posi on varchar(20),gender
char(1),age int,city varchar(20),salary int);")
def AdminMenu():
print("1: Add an employee")
print("2: Delete all employees' records")
print("3: Delete employees in same column")
print("4: Change employee's details")
print("5: Display details of a par cular employee")
print("6: Dispaly details of all the employees in sorted or unsorted manner")
print("7: Search for a par cular employee on basis of empid")
print("8: Search employees on the basis of some other column ")
print("9: Run Query of your choice on employee table")
print("10: Exit")
def UserMenu():
print("1: Display details of a par cular employee")
print("2: Dispaly details of all the employees in sorted or unsorted manner")
print("3: Search for a par cular employee on empid basis")
print("4: Search employees on the basis of some other column ")
print("5: Run Query of your choice on employee table")
print("6: Exit")
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def Addemployee():
r=int(input("enter employee id:"))
nm=input("enter name:")
f=input("enter posi on:")
g=input("enter gender(F or M):")
a=int(input("enter age:"))
c=input("enter city:")
s=int(input("enter salary:"))
cur.execute("insert into EMPLOYEES values(%s,'%s','%s','%s',%s,'%s',%s)" %(r,nm,f,g,a,c,s))
conn.commit()
print("employee added successfully")
def Updateemployee():
r=int(input("enter empid of the employee to be modified:"))
nm=input("enter column name whose value you want to change:")
v=input("enter the new value")
if nm in ['empid','age','salary']:
s="update EMPLOYEES set %s = %s where empid = %s" %(nm,eval(v),r)
else:
s="update EMPLOYEES set %s = '%s' where empid = %s" %(nm,v,r)
cur.execute(s)
conn.commit()
print("upda on successful")
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def Verifyempid(x):
cur.execute("select * from EMPLOYEES where empid= %s" %(x,))
d=cur.fetchone()
if d==None:
return "wrong"
else:
return "right"
def RemoveAllemployees():
cur.execute("delete from EMPLOYEES")
conn.commit()
print("All employees removed successfully")
def RemoveemployeeColumn():
nm=input("enter a column name on the basis of which you want to delete the employee(s):")
v=input("enter its value:")
if nm in ['empid','age','salary']:
cur.execute("delete from EMPLOYEES where %s = %s" %(nm,eval(v)))
else:
cur.execute("delete from EMPLOYEES where %s = '%s'" %(nm,v))
conn.commit()
print("employees removed successfully")
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def DisplayAllemployees():
print("In which order you want to display the employees details:")
x=int(input("1: ascending order \n2: descending order \n3: As present in table\n"))
if x==1:
col=input("enter column name with respect to which you want to order the records")
cur.execute("select * from EMPLOYEES order by %s asc" %(col,))
elif x==2:
col=input("enter column name with respect to which you want to order the records")
cur.execute("select * from EMPLOYEES order by %s desc" %(col,))
else:
cur.execute("select * from EMPLOYEES")
for x in cur:
for j in x:
print(j,end='\t')
print()
def Searchemployee():
t=int(input("enter empid of the employee to be searched:"))
cur.execute("select * from EMPLOYEES where empid = %s" %(t,))
d=cur.fetchone()
if d==None:
print("no such employee present")
else:
for i in d:
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print(i,end="\t")
print()
def SearchemployeeColumn():
nm=input("enter a column name on the basis of which you want to search the employee:")
v=input("enter its value:")
if nm in ['empid','age','salary']:
cur.execute("select * from EMPLOYEES where %s = %s" %(nm,eval(v)))
else:
d=cur.fetchall()
if d==[]:
print("no such employees present")
else:
for i in d:
for x in i:
print(x,end="\t")
print()
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def AdminChoiceQuery_employee():
print("which type of query you want to execute ?")
ch=int(input("Press 1 : For Select query\nPress 2 : For Non-Select query\n"))
if ch==1:
s=input("enter your Select command Query\n")
cur.execute(s)
d=cur.fetchall()
if d==[]:
print("No such record found")
else:
for m in d:
for n in m:
print(n,end="\t")
print()
elif ch==2:
s=input("enter your non-select query:\n")
cur.execute(s)
conn.commit()
print("Query executed")
print("Check out the records")
cur.execute("select * from EMPLOYEES")
p=cur.fetchall()
for m in p:
for n in m:
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print(n,end="\t")
print()
else:
print("invalid choice")
def UserChoiceQuery():
print("Only execute select query")
s=input("enter your select command query\n")
s=s.lower()
if "select" not in s:
print("Invalid query.....Give Select query only")
else:
cur.execute(s)
d=cur.fetchall()
if d==[]:
print("No such query found ")
else:
for m in d:
for n in m:
print(n,end="\t")
print()
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#MAIN PROGRAM
print("\n\n\t\t WELCOME TO COMPANY DATABASE\n\n")
ch=int(input("Press 1: To login as ADMIN\nPress 2: To login as USER\n\n"))
if ch==1:
x=input("Enter Admin Password:")
if x=="COMPANY20":
print("\n\n\t\tWELCOME ADMIN : HERE IS THE MENU \n\n")
while True:
print("\n")
AdminMenu()
print("\n")
n=int(input("enter your choice:"))
if n==1:
Addemployee()
elif n==2:
RemoveAllemployees()
elif n==3:
RemoveemployeeColumn()
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elif n==4:
Updateemployee()
elif n==5:
Searchemployee()
elif n==6:
DisplayAllemployees()
elif n==7:
Verifyempid()
elif n==8:
SearchemployeeColumn()
elif n==9:
AdminChoiceQuery_employee()
elif n==10:
break
else:
print("Invalid Choice")
else:
print("Invalid password")
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elif ch==2:
nm=input("Enter Username:")
print("\n\n\t\tWELCOME USER"+nm+" : HERE IS THE MENU \n\n")
while True:
print("\n")
UserMenu()
print("\n")
n=int(input("enter your choice: "))
if n==1:
Searchemployee()
elif n==2:
DisplayAllemployees()
elif n==3 or n==4:
SearchemployeeColumn()
elif n==5:
UserChoiceQuery()
elif n==6:
break
else:
print("Invalid Choice")
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