SQL Distinct Example - Search localsearch

wikipedia.org

https://en.wikipedia.org/wiki/SQL

Introduced in the 1970s, SQL offered two main advantages over older read–write APIs such as ISAM or VSAM. Firstly, it introduced the concept of accessing many records with one single command. Secondly, it eliminates the need to specify how to reach a record, i.e., with or without an index.

microsoft.com

https://learn.microsoft.com/en-us/ssms/sql-server-…

SQL Server Management Studio (SSMS) | Microsoft Learn

Learn details about SQL Server Management Studio (SSMS) and what SSMS can do, including how to manage Analysis Services Solutions.

w3schools.com

https://www.w3schools.com/sql/sql_syntax.asp

SQL Syntax - W3Schools

SQL Statements Most of the actions you need to perform on a database are done with SQL statements. SQL statements consist of keywords that are easy to understand. The following SQL statement returns all records from a table named "Customers":

sqlbolt.com

https://sqlbolt.com/

SQLBolt - Learn SQL - Introduction to SQL

Introduction to SQL Welcome to SQLBolt, a series of interactive lessons and exercises designed to help you quickly learn SQL right in your browser. What is SQL? SQL, or Structured Query Language, is a language designed to allow both technical and non-technical users to query, manipulate, and transform data from a relational database.

sqlzoo.net

https://sqlzoo.net/wiki/SQL_Tutorial

SQL Tutorial - SQLZoo

Tutorials: Learn SQL step by step 0 SELECT basics Some simple queries to get you started 1 SELECT name Some pattern matching queries 2 SELECT from World In which we query the World country profile table. 3 SELECT from Nobel Additional practice of the basic features using a table of Nobel Prize winners. 4 SELECT within SELECT In which we form queries using other queries. 5 SUM and COUNT In ...

geeksforgeeks.org

https://www.geeksforgeeks.org/sql/sql-exercises/

SQL Exercises : SQL Practice with Solution for Beginners and ...

SQL (Structured Query Language) is a powerful and flexible tool for managing and manipulating relational databases. Regardless of our experience level, practising SQL exercises is essential for improving our skills. Regular practice not only enhances our understanding of SQL concepts but also builds confidence in tackling various database challenges effectively. In this free SQL Exercises page ...

oracle.com

https://livesql.oracle.com/landing/

Oracle Live SQL

Featured Scripts and Tutorials Tutorial SQL Macros - Creating parameterised views This tutorial explains how to create a parameterized view using SQL Macros. The examples use the built-in sales history schema so there are no setup steps. Script Simple Explain Plan This script explains the plan for a query of the sh.sales and sh.products tables.

sqlfiddle.com

https://sqlfiddle.com/

SQL Fiddle - Online SQL Compiler for learning & practice

Discover our free online SQL editor enhanced with AI to chat, explain, and generate code. Support SQL Server, MySQL, MariaDB, PostgreSQL, and SQLite.

britannica.com

https://www.britannica.com/technology/computer-pro…

Computer programming language - SQL, Database, Queries | Britannica

SQL (structured query language) is a language for specifying the organization of databases (collections of records). Databases organized with SQL are called relational, because SQL provides the ability to query a database for information that falls in a given relation.

techonthenet.com

https://www.techonthenet.com/sql/index.php

SQL Tutorial - TechOnTheNet

SQL stands for Structured Query Language and is the standard relational language that is supported by just about every database product. All database professionals should know how to write, troubleshoot, and optimize SQL.