SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in MySQL, SQL Server, MS Access, Oracle, PostgreSQL, and more.

Whether you’re a software developer, database administrator, data analyst, or data scientist, this SQL tutorial will help you unlock the power of SQL for managing and analyzing data.

Get started with Microsoft SQL Server downloads. Choose a SQL Server trial, edition, tool, or connector that best meets your data and workload needs.

MySQL Cluster enables users to meet the database challenges of next generation web, cloud, and communications services with uncompromising scalability, uptime and agility.

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. …

May 23, 2026 · Learn how to create, select, rename and drop databases with practical examples. Tables are the core data structures in databases organizing data into rows and columns. This section covers …

Query external data sources directly with SQL using virtual tables. Perfect for federated queries across multiple APIs and datasets.

Oracle SQL Developer can be as simple as running queries against your Oracle Database, or it can be a complete development, management, and modeling solution. This demonstration takes you on a tour …

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. And due to its simplicity, …

How to read the data from a database. How to create tables, indexes, views and other things. How to get rid of them. How to put records into a table, change them and how to take them out again. How …