What is the web application What you what is SQL What is difference between really and truncate and drop statements How do you get a sum of column of particular table How do you apply condition in a aagregate statement What are the windows statements in SQL What are the joints what the use of the joints What is allies Statement for creating table altering table altering colum How do you create a database what is the statement for creating Teletubbies

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Accepted Answer

The interview questions cover various aspects of web applications and SQL, including basic concepts, commands, and best practices.

A web application is a software application that runs on a web server and is accessed through a web browser.
SQL (Structured Query Language) is a programming language used for managing and manipulating relational databases.
The difference between 'REALLY' and 'TRUNCATE' statements is that 'REALLY' deletes all rows in a table, while 'TRUNCATE' removes all rows but retains the table structure. 'DROP' statement deletes the entire table along with its structure.
To get the sum of a column in a particular table, you can use the 'SUM' function in SQL. For example, SELECT SUM(column_name) FROM table_name;
To apply conditions in an aggregate statement, you can use the 'WHERE' clause. For example, SELECT SUM(column_name) FROM table_name WHERE condition;
Windows functions in SQL are used for performing calculations across a set of rows related to the current row. Examples include ROW_NUMBER(), RANK(), and NTILE().
Joins in SQL are used to combine rows from two or more tables based on a related column between them. Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.
Aliases in SQL are used to give a table or column a temporary name. This is helpful when working with multiple tables or when renaming columns in the output of a query.
The statement for creating a table is 'CREATE TABLE table_name (column1 datatype, column2 datatype, ...);'. To alter a table, you can use 'ALTER TABLE table_name ...'. To alter a column, you can use 'ALTER TABLE table_name ALTER COLUMN column_name ...'.
To create a database in SQL, you can use the 'CREATE DATABASE database_name;' statement. There is no specific statement for creating 'Teletubbies' in SQL.

Accepted Answer

Application is application which we use in website so we called as web application
SQL is a structured language that will retrieve the data on database it is  rdms structure query language in the tabular form there columns and the rows