SQL Tutorial 
Purpose
MaxDB is a relational database system with an SQL interface. The MaxDB data is organized in tables. You can use a set of simple SQL (Structured Query Language) statements based on English to perform a wide range of operations on data and tables in MaxDB.
This SQL tutorial is designed to introduce you to the SQL language using the MaxDB database system.
Implementation Considerations
For information on
where to obtain MaxDB software and how to install it, see the 
Download section
and the Installation
Manual.
Additional
information can be found in the Concepts of the
Database System documentation. For quick access to all documentation and
an explanation of the most important terms, use the alphabetical Glossary.
For a detailed
description of SQL syntax, see the SQL Reference
Manual.
Features
Demo Data
To work through the examples in this SQL tutorial, you need the demo data for the SQL tutorial.
This demo data was developed for practice and testing purposes and contains several predefined demo users and demo data in the HOTEL demo schema.
Do not use the demo data in a production system.
Example SQL Statements
The SQL statements that are described in the examples in this tutorial can be grouped in the following areas:
●
The SELECT
statement enables data to be selected from a table by row or column. Rows in
several tables can be linked together. Data can be sorted, grouped, and
calculated.
For examples, see Data
Query.
●
An additional group
of statements is used to define and redefine the table structure and other
database objects.
For examples, see Data
Definition.
●
The INSERT
statement can be used to insert rows and the DELETE statement to delete rows.
The UPDATE statement can be used to make changes.
For examples, see Data
Manipulation.
●
An additional group
of statements is used to control data access authorizations for users and user
groups.
For examples, see Authorization.
●
When performing
checks, it is often helpful to evaluate the system tables.
For examples, see Evaluating System
Tables (Examples).
To make SQL statements more readable, the keywords are written in upper-case letters and the SQL statements are structured. Upper and lower-case spellings of syntax elements and blank characters or line breaks are not relevant for executing SQL statements.
Upper and
lower-case letters, however, may be important when choosing identifiers for
the database objects and entering values in the form of literals.
See also:
Concepts of the Database System, Demo
Database