With the distinct keyword with single and multiple column names, you get distinct records: SELECT DISTINCT column 1, column 2, ... FROM table_name;

The SQL SELECT DISTINCT Statement. The SELECT DISTINCT statement is used to return only distinct (different) values.

Dec 31, 2024 · By using the DISTINCT clause, we can efficiently retrieve unique values from a specified column, avoiding duplicate results. In this article, we will explain the use of the DISTINCT clause with detailed examples, syntax, and practical use cases.

Feb 21, 2013 · If you want your results to contain only unique values of SG.GID, you can use a GROUP BY clause instead--but then you have to decide some rules for which values you want to return in the other columns. You do this by using aggregate functions like MIN(), MAX(), COUNT(), SUM(), etc. Simplified example:

May 5, 2015 · This should get you a list of all the values in col1 that are not distinct. You can place this in a table var or temp table and join against it. Here is an example using a sub-query:

Sep 23, 2023 · Thankfully, SQL provides several approaches to identify distinct or unique values within a column or a dataset. 1. DISTINCT keyword. One of the simplest and most commonly used methods is to use the DISTINCT keyword. This approach allows us to retrieve only unique values from a specified column or columns.

This tutorial shows you how to use the SQL Server SELECT DISTINCT clause to retrieve the only distinct values in a specified list of columns.

To select the distinct values from a column of a table, you use the DISTINCT operator in the SELECT clause as follows: column1. FROM . table_name; Code language: SQL (Structured Query Language) (sql) In this syntax, the SELECT statement returns a result set that contains unique values from the column1 of the table.

Sep 24, 2023 · If you’re not familiar already, SELECT DISTINCT is a handy tool in our SQL arsenal that helps to return unique values within a database column. Here’s how we can use it in its simplest form: SELECT DISTINCT column_name FROM table_name; This will fetch all unique values from the specified “column_name” in your chosen “table_name”.

DISTINCT command in SQL collects the unique or distinct records from a field of a table. In the student table we are interested to know how many class records are there and the DISTINCT sql command should return class once only. Unique is a reserved keyword used while creating table to add constraint to not to accept duplicate data.