[SQL] 快速高效學習SQL語法 / Learn SQL With High Efficiency

介紹利用 SQLBolt 網站快速學習SQL語法。

SQLBOLT

Website: https://sqlbolt.com/
這個網站可以讓初學SQL的人快速上手一些資料庫基本語法應用。
特色是具有互動式教學，讓學習者實際key in SQL指令完成各種query，
很推薦想初步學習SQL的人多利用。

課程簡介:

Introduction to SQL
SQL Lesson 1: SELECT queries 101

SELECT

SQL Lesson 2: Queries with constraints (Pt. 1)

WHERE

SQL Lesson 3: Queries with constraints (Pt. 2)

Constraints operators

SQL Lesson 4: Filtering and sorting Query results

SELECT DISTINCT / ORDER BY / LIMIT / OFFSET

SQL Review: Simple SELECT Queries

SQL Lesson 6: Multi-table queries with JOINs

(INNER) JOIN … ON …

SQL Lesson 7: OUTER JOINs

LEFT / RIGHT / FULL JOIN … ON …

SQL Lesson 8: A short note on NULLs

IS/ IS NOT NULL

SQL Lesson 9: Queries with expressions

SELECT … AS …

SQL Lesson 10: Queries with aggregates (Pt. 1)

Aggregate s: COUNT / MIN / MAX / AVG / SUM

SQL Lesson 11: Queries with aggregates (Pt. 2)

GROUP BY … HAVING …

SQL Lesson 12: Order of execution of a Query

SQL Lesson 13: Inserting rows

INSERT INTO … VALUES …

SQL Lesson 14: Updating rows

UPDATE … SET …

SQL Lesson 15: Deleting rows

DELETE FROM …

SQL Lesson 16: Creating tables

CREATE TABLE IF NOT EXISTS …

SQL Lesson 17: Altering tables

ALTER TABLE … ADD / DROP / RENAME TO

SQL Lesson 18: Dropping tables

DROP TABLE IF EXISTS …

SQL Lesson X: To infinity and beyond!