SQL Aggregations, Advanced Filtering with SQL and Joins in SQL

Certainly! Here’s a brief explanation of the topics related to SQL (Structured Query Language):

1. Basic SQL Functions:
   • SQL functions are built-in operations that you can use in SQL queries to perform tasks like mathematical calculations, date and time manipulation, and text operations.
2. Understanding the Fundamentals of SQL:
   • This involves learning the basic concepts of SQL, including its purpose, syntax, and how it’s used to manage and query databases.
3. Introduction to Databases (Types, Tools, and Installing SQL):
   • Databases come in various types (e.g., relational, NoSQL). You’ll learn about different database types, the tools used to interact with them, and how to install SQL database management systems (DBMS).
4. Writing SQL Statements, SQL Commands, and Retrieving Data:
   • You’ll learn how to write SQL statements and commands to query and retrieve data from a database. Common commands include SELECT, INSERT, UPDATE, and DELETE.
5. Sorting with SQL:
   • Sorting involves arranging query results in a specific order, such as ascending or descending. The SQL ORDER BY clause is used for this purpose.
6. Grouping Data with SQL:
   • SQL GROUP BY is used to group rows that have the same values in specified columns. It’s often used with aggregate functions like SUM, COUNT, AVG, etc., to summarize data.
7. SQL Aggregations:
   • Aggregation functions in SQL (e.g., SUM, COUNT, AVG, MAX, MIN) allow you to perform calculations on groups of data, such as finding the total or average.
8. Advanced Filtering with SQL:
   • Advanced filtering techniques involve using conditions and logical operators (e.g., AND, OR) in SQL queries to narrow down results based on specific criteria.
9. Joins in SQL:
   • SQL JOIN operations combine rows from multiple tables based on a related column. You can perform different types of joins, including INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.