01. Introduction to Databases and SQL

Building an Efficient Trading System: Essential Steps

Designing a trading system involves several critical steps that will help in pulling all knowledge about price movement and geometric Brownian motion together into a functional system.

1. Overall Design:

   • Plan the system architecture.
   • Identify required components.
   • Define interactions between components.
   • Choose appropriate software packages.

2. Database Management System (DBMS):

   • Store and access data such as historical stock and option prices.
   • Include economic calendars to track significant events.
   • Automatic systems can pause trades during high-impact events.

3. Choosing a DBMS:

   • Options range from high-end to open-source solutions.
   • MySQL is a recommended open-source DBMS:
   • Free under GNU GPL.
   • Optimized for speed.
   • Capable of handling numerous queries and transactions.
   • Utilizes Structured Query Language (SQL) for data management.

4. SQL Knowledge:

   • Essential for querying, updating, and managing database records.
   • Widely used across various systems like Postgres, Oracle, and MS SQL Server.

Begin by understanding these foundational elements to craft an efficient and responsive trading system.