The ORDER BY clause is used as :
SELECT < column-name > [, < columnname >, .... ]
FROM < table-name >ORDER BY < column1 >,< column2 >, ... ASC| DESC ;

Transactional Control Language (TCL) commands are used to manage transactions in the database. These are used to manage the changes made to the data in a table by DML statements.

title()

Returns a string in title case

>>>str1='education department' >>>print(str1.title())      Education Department

lower()	Returns the exact copy of the string with all the letters in lowercase.	>>> str1='SAVE EARTH' >>> print(str1.lower())            save eath
islower()	Returns True if the string is in lowercase.	>>> str1='welcome' >>> print (str1.islower())            True

(i) Learn
(ii) r
(iii) er
(iv) ceoenyo

(a) +
(b) + =

General format of slice operation:
str[start:end]
Where start is the beginning index and end is the last index value of a character in the string. Python takes the end value less than one from the actual index specified.

Syntax of return :
return [expression list]
This statement can contain expression which gets evaluated and the value is returned. If there is no expression in the statement or the return statement itself is not present inside a function, then the function will return the None object.

Non-keyword variable arguments are called tuples.

In Variable Length arguments we can parse the arguments using two methods.
(i) Non keyword variable arguments
(ii) Keyword variable arguments

Program to illustrate Constructor:
class Sample:
def _init_(self, num):
print("Constructor of class Sample...")
self.num=num
print("The value is :", num)
S = Sample(10)
Output:
constructor of class Sample..
The value is:10

schl

for var in sequence:
if condtion:

Output:
1, 3, 5, 7
End of the loop

Python provides two types of looping constructs:
(i) while loop
(ii) for loop

Output:
Enter any number: 56
56 is an even number
Output 2:
Enter any number: 67
67 is an odd number

Read 'r', write 'w' or append 'a'.

Output:
{'A', 2, 4, 'D', 'B' ,'C'}
{'A', 'D'}
{2, 4}
{2, 4, 'B", C'}

Syntax:
# Empty tuple
Tuple_Name = ()
# Tuple with n number elements
Tuple_Name = () (E1, E2, E2, ....... En)
# Elements of a tuple without parenthesis
Tuple_Name = E1, E2, E3 ..... En

Syntax:
for index_var in list:
print (index_ var)

Big Omega is the reverse Big O, if Big O is used to describe the upper bound (worst - case) of a asymptotic function, Big Omega is used to describe the lower bound (best-case).

The best algorithm to solve a given problem is one that requires less space in memory and takes less time to execute its instructions to generate output.

In python, Logical operators are used to perform logical operations on the given relational expressions. There are three logical operators they are and or not.

Whitespace separation is necessary between tokens, identifiers or keywords.

(i) The input () is usedto display the result of the program after execution.
(ii) Reason: The input () function helps to enter data at run time buy the user not to display the output.

The prompt >>> indicates that Interpreter is ready to accept instructions. Therefore, the prompt on screen mean IDLE is working in interactive mode.

The output of the program
10
10

The output of the program
7

The LEGB rule is used to decide the order in which the scopes are to be searched for scope resolution. The scopes are listed below in terms of hierarchy (highest to lowest).

rational(n, d):
return [n, d]
numer(x):
return x[0]
denom(x):
return x[1]

(i) To implement the concrete level of data abstraction, languages like Python provides a compound structure called Pair which is made up of list or Tuple.
(ii) The first way to implement pairs is with the List construct

let rec monochromatize a b c :=
if a > 0 then
a, b, c:= a-1, b-1, c+2
else
a:=0, b:=0, c:= a + b + c
return c

(requires: b > 0 )
(returns: a to the power of b)
let rec pow (a: int) (b: int) : int :=
if (b=0) then 1
else a * pow b (a-1 )

We can install Matplotlib using Pip. Pip is a management software for installing Python packages.

To populate the table "INSERT" command is passed to SQLite."execute" method executes the SQL command to perform some action.
Example:
Sql_command =" " INSERT INTO student (Rollno, Sname, Grade, Gender, Average, birth_date) values (NULL, "Akshay", "B", "M", "87.8", "2001-12-12");" " cursor.execute(sql_command)

Create a connection using connect() method and pass the nanie of the database file.
Example:
#connecting to the database
connection = sqlite3.connect ("Academy.db")
#cursor
cursor = connection.cursor()

Modular programming is a software design technique to split our code into separate parts. These parts are called modules. The focus for this separation should have modules with no or just few dependencies upon other modules.

S.No	Compiler	Interpreter
(i)	It takes an entire Program at a time.	It takes a single line of code or instruction at a time.
(ii)	Display all errors after compilation, all at the	Displays error of each line one by one.

To sort by more than one column you can use itemgetter with multiple indices:
operator.itemgetter 
Example:
sortedlist = sorted (data, key = operator. itemgetter(1))

A CSV file is a human readable text file where each line has a number of fields, separated by commas or some other delimiter.

Table Constraints	column constraints
Table constraint is apply to a group of one or more columns.	Column constraint can be apply only to individual columns.

(i) "Init" is a special function begin an end with double underscore in Python act as a Constructor .
(ii) Constructor function will automatically executed when an object is created.
General format of __init__ method
                                    (Constructor function)
def __init__ (self, [args........])
<statements>

4

Python will not allow deleting a particular character in a string. Whereas you can remove entire string variable using del command.
Example :
>>> strl="How about you"
>>> print (str1)
        How about you
>>> del str1
>>> print (str1)
Traceback (most recent call last):
         File "", line 1, in
                 print (strl)
NameError : name 'str1' is not defined

A program statement that causes a jump of control from one part of the program to another is called control structure or control statement.

The break statement terminates the loop containing it. Control of the program flows to the statement immediately after the body of the loop.

A searching algorithm is the step-by step procedure used to locate specific data among a collection of data. There are two types of searching are.
(i) Linear Search
(ii) Binary Search

The different operators that can be used in python are
(i) Arithmetic operators
(ii) Relational or Comparative operator
(iii) Logical operators
(iv) Assignment operators
(v) Conditional operator

The process of binding a variable name with an object is called mapping = (equal to sign) is used in programming languages to map the variable and object.

Interface	Implementation
Interface just defines what an object can do, but won't actually do it.	Implementation carriers out the instructions defined in the interface.