A naukri.com initiative
Self-Learning-Java
3w
363
Image Credit: Self-Learning-Java
Introduction to Auto Schema Detection in BigQuery
- BigQuery provides an auto schema detection feature for CSV and JSON files.
- Auto schema detection analyzes the first up to 100 rows to assign data types based on sample values.
- Limitations include inaccuracies based on sample data and inconsistent types for columns with varied formats.
- Best practices involve manually defining schemas for data consistency and verifying inferred schemas before querying.
Read Full Article
21 Likes
For uninterrupted reading, download the app