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👉 PYTHON CODE FOR NUMBER GUESSING GAME 👈 import random import math lower = 0 upper = 100 x = random.randint(lower, upper) limit = round(math.log(upper - lower + 1, 2)) print("\n\tYou've only ", limit, " chances to guess the integer!\n") count = 0 while count <= limit: count += 1 guess = int(input("Guess a number:- ")) if count == limit: print("\n\tThe number is %d" % x) print("\tBetter Luck Next time!") break if x == guess: print("Congratulations you did it in ",count, " try") break elif x > guess: print("You guessed too small!") elif x < guess: print("You Guessed too high!") 😎 Hope you guys liked it @Coder_baba

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🚀Java Variable: 1, Variable is the name of a memory location in which we can store the value. 2, The variable value can be change. 3, A variable is defined by combining an identifier, data types, and an initializer. 4, The first character in the variable name must be an alphabet, underscore, a digit, or a dollar sign. 5, All variables have a scope 6, The identifier is the name of the Variable. 7, Commas or blanks are not used inside a variable name. 🚀Java Variable Declaration Syntax : Type Variable name; int is a type a ,b and a*b is a variable-name Java variable declaration syntax Rules: Type Variable name: int Roll_No; //Roll_No declare a Variable float Percentage; //Percentage declare a Variable Roll_No=40 ; //assigns value in variable Precentege=40.80; //assigns value in variable How to Declare a variables in Java? The Variables are declared in various types: int abc;// this declare a variable int abc;// (abc and a_bc are a variable) int a,b,x,z;// (a,b,x,z) are a variable byte a1=40;//initialize a. double a2=40.80 ;//like a float Char a3=“ram”;//a variable gain value ( ram ) Q-Addition of Variables Java Example? int a,b,c,d; a=10; b=20; c=30; d=40; System.out.println(a+b+c+d); Output : 100 Q-Variable increment values in Java? int a=10;// a is a Variable a+=40; a=a+20; System.out.println(a); Output : 70 Q-Create a variable and store a no inside this variable and print output? int a; a=40; OR int a=40; System.out.println(a); int a; a=40; Output : 40 Q-Create a string variable and store a no inside string type variable and print output? String a="Ram "; String b="Lakshman "; OR String a,b; a="Ram "; b="Lakshman "; System.out.println(a+b); Output : RamLakshman Constant: Constant is used when you store a value inside a variable, but use Constant after you can’t overwrite the existing deal.

🎯Important SQL Interview Question: 🔰Q. What are the different types of indexes? Ans: ✅An index is a performance tuning method of allowing faster retrieval of records from the table. An index creates an entry for each value and makes it faster to retrieve data. There are three types of indexes: 1️⃣Unique Index: This indexing does not allow the field to have duplicate values if the column is unique indexed. Unique index can be applied automatically when primary key is defined. 2️⃣Clustered Index: This type of index reorders the physical order of the table and search based on the key values. Each table can have only one clustered index. 3️⃣Non-Clustered Index: Non-Clustered Index does not alter the physical order of the table and maintains logical order of data. Each table can have 999 nonclustered indexes. 🔰Q.What is a cursor in SQL? ✅A database Cursor is a control which enables traversal over the rows or records in the table. This can be viewed as a pointer to one row in a set of rows. Cursor is very much useful for traversing such as for retrieval, addition and removal of database records. 🔰Q.What is a trigger? ✅A DB trigger is a code or programs that automatically execute with response to some event on a table or view in a database. Mainly, trigger helps to maintain the integrity of the database. Example: When a new student is added to the student database, new records should be created in the related tables such as the Exam, Score and Attendance tables. 🔰What are constraints? ✅Constraint can be used to specify the limit on the data type of table. Constraint can be specified while creating or altering the table statement. 🔰Q. What is data integrity? ✅Data Integrity defines the accuracy and consistency of data stored in a database. It can also define integrity constraints to enforce business rules on the data when it is entered into the application or database. 🔰Q What is auto increment? ✅Auto increment keyword allows the user to create a unique number to be generated when a new record is inserted into the table. AUTO INCREMENT keyword can be used in Oracle and IDENTITY keyword can be used in SQL SERVER. 🔰Q. What is a data warehouse? ✅Data warehouses are a central repository of data from multiple sources of information. This data is consolidated, transformed and made available for the mining and online processing. Warehouse data have subsets of data called Data Marts. 🔰Q. What is the difference between DROP and TRUNCATE statements? ✅TRUNCATE removes all the rows from the table, and it cannot be rolled back. DROP command removes a table from the database and operation cannot be rolled back. 🔰Q. What are aggregate and scalar functions? ✅Functions are methods used to perform data operations. SQL has many inbuilt functions used to perform string concatenations, mathematical calculations etc. SQL functions are categorized into the following two categories: Aggregate Functions and Scalar Functions. Aggregate SQL Functions- The Aggregate Functions in SQL perform calculations on a group of values and then return a single value. Following are a few of the most commonly used Aggregate SUM(), COUNT(), AVG(), MIN(), MAX(), FIRST() & LAST() The Scalar Functions- in SQL are used to return a single value from the given input value. Following are a few of the most commonly used Scalar LCASE(), UCASE(), LEN(), MID(), ROUND(), NOW(), FORMAT() 🔰Q.What is alias in SQL? ✅SQL aliases are used to give a table, or a column in a table, a temporary name. Aliases are often used to make column names more readable. An alias only exists for the duration of that query. An alias is created with the AS keyword Follow for more @Coder_Baba #Coderbaba #CSharpTutorials #SQL