SQL Practice Problems: 57 beginning, intermediate, and advanced challenges for you to solve using a “learn-by-doing” approach
amazon.com
数据库基本支持五种标准 SQL 事务级别：未提交读取、已提交读取、可重复读取、快照隔离和可序列化
#database #transaction
With Quary, engineers can:
View the documentation.
- 🔌 Connect to their Database
- 📖 Write SQL queries to transform, organize, and document tables in a database
- 📊 Create charts, dashboards and reports (in development)
- 🧪 Test, collaborate & refactor iteratively through version control
- 🚀 Deploy the organised, documented model back up to the database
View the documentation.