Filtering and Sorting in SQL When working with SQL, filtering and sorting data is essential to extract meaningful insights. Below are some key operations: DISTINCT, ORDER BY, LIMIT/OFFSET, and advanced filtering with BETWEEN, IN, and LIKE. 1 . DISTINCT: Removing Duplicates The DISTINCT keyword is used to return only unique (distinct) values, eliminating duplicates from the result set. Syntax: SELECT DISTINCT column1, column2, ... FROM table_name; Example: Let’s say you have a table called products: id name category 1 Laptop Electronics 2 Phone Electronics 3 T-shirt Clothing 4 Jacket Clothing 5 Phone Electronics To retrieve distinct product categories: SELECT DISTINCT category FROM products; Result: category ----------- Electronics Clothing In this case, even though "Electronics" appears multiple times, it is returned only once due to the DISTINCT keyword. 2. ORDER BY: Sorting Data The ORDER BY clause is used to sort the result set in either ascen...