Advanced SQL for Application Development
Offered By: LinkedIn Learning
Course Description
Overview
Build scalable and resilient databases to support any application. Learn how to write optimized SQL, use indexes, partition data, and use established design patterns.
Syllabus
Introduction
- Getting started with SQL for application developers
- Designing an ecommerce application database
- Creating tables and loading data
- Using environment variables for connection parameters
- Connecting to a database
- Parameterizing SELECT statements
- Avoiding N+1 queries
- Challenge: Write a parameterized query in Python
- Solution: How to write a parameterized query in Python
- Overview of index types
- Using B-tree indexes and range scans
- Using hash indexes and equality operations
- Covering indexes
- Indexes and bulk data loading
- Avoiding index locks
- Challenge: Define a B-tree and a hash index
- Solution: Defining B-tree and hash indexes
- Overview of object-relational mapping
- Introduction to SQLAlchemy
- Installing SQLAlchemy
- Query with SQLAlchemy
- Limitations of ORM and cautionary advice
- Challenge: Create an ORM model
- Solution: Create an ORM model
- Overview of partitioning
- Range partitioning
- List partitioning
- Hash partitioning
- Querying partitioned tables
- Using read-only replicas
- Challenge: Define a partitioned table
- Solution: Defining a partitioned table
- Database errors
- Error trapping
- Database not responding, timeouts, and exponential backoff
- Connection pooling and bulk heads
- Monitoring and logging best practices
- Challenge: When your Python application fails
- Solution: When your Python application fails
- Understanding schema changes
- Ad hoc scripts for schema changes
- Automated schema migration with Flyway
- Automated schema migration with Liquibase
- Challenge
- Solution
- Key considerations
Taught by
Dan Sullivan
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