SQL or Transaction Issues

This document introduces problems that may occur during application development and related documents.

Troubleshoot SQL query problems

If you want to improve SQL query performance, follow the instructions in SQL Performance Tuning to solve performance problems such as full table scans and missing indexes.

If you still have performance issues, see the following documents:

• Analyze Slow Queries
• Identify Expensive Queries Using Top SQL

If you have questions about SQL operations, see SQL FAQs.

Troubleshoot transaction issues

See Handle transaction errors.

See also

• Unsupported features

• Cluster Management FAQs
• TiDB FAQs

Need help?

Ask questions on TiDB Community, or create a support ticket.