# Revisit The Learning Path: Tidb Sql For Developers (TiDB v6.x)
+ 201.2: Learn SQL with TiDB
[Reference script: https://github.com/pingcap/tidb-course-201-lab/tree/master/scripts](https://github.com/pingcap/tidb-course-201-lab/tree/master/scripts)
  + Querying Data
  + Data Types and Expressions
  + Functions
  + Joins
  + **Subqueries**

![right](./student-guide/diagram/TiDBSQLForDevelopersLearningPath_en_002_20220515.png)

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