SQL Tutorial/zh

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学习 SQL: SQL Server, Oracle, MySQL, DB2, and PostgreSQL.

教程: 由淺入深 學習 SQL

0 SELECT 基礎
1 SELECT name
2 SELECT from World
3 SELECT from Nobel
4 子查詢
5 群組函數
6 合拼兩個表格
7 更多的合拼操作。
8 NULL值
8+ Numeric Examples
In which we look at a survey and deal with some more complex calculations.
9 自我合拼
10 Tutorial Quizzes
Test your knowledge with multiple choice quizzes

Reference: how to...

1 SELECT
How to read the data from a database.
2 CREATE and DROP
How to create tables, indexes, views and other things. How to get rid of them.
3 INSERT and DELETE
How to put records into a table, change them and how to take them out again.
4 DATE and TIME
How to work with dates; adding, subtracting and formatting.
5 Functions
How to use string functions, logical functions and mathematical functions.
6 Users
How to create users, GRANT and DENY access, get at other peoples tables. How to find processes and kill them.
7 Meta Data
How to find out what tables and columns exist. How to count and limit the rows return.
8 SQL Hacks

Assessments: More involved examples for confident users

Each assessment includes 15 questions graded easy, medium and hard.

Adventure Works
An example based on a wholesaler (based on MicroSoft's sample database)
University Timetables
Schedules for lectures and tutorials
Musicians
Bands, Concerts, Performances
Dressmaker
Making and ordering dresses
Congestion Charging
Monitoring and charging cars going in and out of London

SQL Resources

SQL User Manuals
MimerMySQL Oracle SQL Server Access DB2 Sybase Postgres SQLite
Online copies of implementation specific user manuals.
Starting SQL
[ MySQL | Oracle | SQL Server | DB2 | Postgres | Ingres ]
How to connect to the server and execute SQL statements.
Programming with SQL
[ SQL in perl on the Web | SQL from Java ]
Error Messages
Some error messages from SQL engines
Temporary Assessment section, before the main menu is finished.
Assessment Temp
DataWars, Data Science Practice Projects - LogoDataWars: Practice Data Science/Analysis with +100 Real Life Projects