Data type mapping 
The system provides two mapping templates, Java and SQLAlchemy, by default, which can be modified and added as needed.
Directions 
Data Type: database data type
Target Type: mapping type
Target Type2: Mapping type 2
Target Type3: Mapping type 3
Example 
Take MySQL mapping to Java as an example:
| Data Type | Target Type | Target Type2 | Target Type3 | 
|---|---|---|---|
| varchar | String | ||
| int | Integer | ||
| datetime | Date | 
Take MySQL mapping to SQLAlchemy as an example:
| Data Type | Target Type | Target Type2 | Target Type3 | 
|---|---|---|---|
| varchar | String | str | |
| int | Integer | int | |
| datetime | DATETIME | datetime | 
