Explain the difference between Right Join and Full Outer Join in SQL.

SQL - Right Join vs Full Outer Join

Joins (SQL)

What is a Self Join in SQL, and how is it used?

SQL - Self Join (SQL)

You are designing a database to store information about university students and courses. Explain the concept of normalization in the context of database design and describe the benefits it brings to data organization.

SQL - Normalization

Normalisation

What is the purpose of the GROUP BY clause in SQL?

SQL - GROUP BY

GROUP BY (SQL)

Explain the difference between WHERE and HAVING clauses in SQL.

SQL - WHERE vs HAVING

HAVING CLAUSE (SQL)

What is a Common Table Expression (CTE) in SQL, and how is it used?

SQL - Common Table Expressions (CTEs)

Common Table Expressions(CTEs)

SQL - View

Views (SQL)

Why is indexing important in a database, and how does it improve query performance?

SQL - Indexing

Database and Table Creation

Explain the difference between stored procedures and functions in SQL.

SQL - Stored Procedures vs Functions

Stored Procedures

Explain the key differences between using a database and using spreadsheets for data management.

SQL - Database vs Spreadsheets

Database vs Spreadsheets

Explain the difference between a table and a schema in SQL.

SQL - Schema

Table,Schema (SQL)

You are tasked with creating a database to store information about employees in a company. How would you design tables and define a schema to represent employee details, ensuring data integrity and efficient querying?

SQL - Designing a database

What is the difference between CHAR and VARCHAR datatypes in SQL?

SQL - Datatypes

SQL datatypes

Explain how window frames work in SQL window functions.

SQL - Window functions

Window rank functions (SQL)

What is the difference between DDL and DML in SQL?

SQL - DML VS DDL

DDL (SQL)

Explain the difference between INSERT and UPDATE statements in SQL.

SQL - INSERT vs UPDATE

DML (SQL)

What is the purpose of CASE statements in SQL?

SQL - CASE Statements

CASE Statements (SQL)

Explain the importance of ACID properties in the context of database transactions.

SQL - ACID Properties

ACID Properties(SQL)

What is a subquery in SQL, and how is it used?

SQL - Subqueries

Non Correlated Subqueries

How would you use the RANK() function to retrieve the top three highest scores in a table?

SQL - RANK function

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