Sql distinct vs unique

Finding unique column values is a common task in SQL when analysing data or ensuring data integrity.

Sql select distinct count

By using the clause, we can efficiently retrieve unique values from a specified column, avoiding duplicate results.

In this article, we will explain the use of the clause with detailed examples, syntax, and practical use cases.

By the end of this guide, we will have a thorough understanding of how to apply the clause in SQL to improve our data queries and analysis.

What is the Clause in SQL?

The clause is a powerful feature in SQL that allows us to fetch unique values from a specified column in a table.

It removes duplicate entries from the result set, ensuring that each value appears only once.

Syntax

SELECT DISTINCT column_name
FROM table_name;

Finding Unique Column Values in SQL

Let’s look at an example, where we will retrieve unique column values from a table using the DISTINCT clause.

We take a sample table named Geeks and return unique column val

how to get duplicate records in sql query

how to find duplicate records in sql