Search results
Option 1: SELECT DISTINCT. This is the most simple and straight forward, but also the most limited way: SELECT DISTINCT word, num FROM dupes ORDER BY word, num; /* word|num| ----|---| aaa |100| bbb |200| bbb |400| ccc |300| ddd |400| */ Option 2: GROUP BY. Grouping allows you to add aggregated data, like the min(id), max(id), count(*), etc:
The SQL SELECT DISTINCT Statement. The SELECT DISTINCT statement is used to return only distinct (different) values. Example. Select all the different countries from the "Customers" table: SELECT DISTINCT Country FROM Customers; Try it Yourself »
23 lut 2023 · Learn how to use SELECT DISTINCT to return a unique list of values from a SQL Server database table. See examples of using SELECT DISTINCT with single or multiple columns, subqueries, and filters.
24 wrz 2023 · Learn how to use SELECT DISTINCT to filter out duplicate data from SQL databases. Find out the basic usage, common pitfalls, and advanced scenarios of this powerful command.
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.
23 kwi 2021 · The DISTINCT keyword in the SELECT clause is used to eliminate duplicate rows and display a unique list of values. In other words, the DISTINCT keyword retrieves unique values from a table. The basic syntax of the DISTINCT keyword in SQL is: SELECT DISTINCT column_1, column_2, …, column_n FROM table_name.
What is SQL DISTINCT? DISTINCT is a keyword in SQL that allows you to show unique or distinct results. It’s added to a SELECT query to eliminate duplicates in the data it displays because columns often contain duplicate values and sometimes you may only want to show unique or distinct values.
