1. Dart
2. dart:web_sql
3. SqlError
4. CONSTRAINT_ERR constant

##### SqlError class

1. Properties
2. code
3. message
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. toString
9. Operators
10. operator ==
11. Constants
12. CONSTRAINT_ERR
13. DATABASE_ERR
14. QUOTA_ERR
15. SYNTAX_ERR
16. TIMEOUT_ERR
17. TOO_LARGE_ERR
18. UNKNOWN_ERR
19. VERSION_ERR

# CONSTRAINT_ERR constant

int const CONSTRAINT_ERR = 6

## Implementation

    static const int CONSTRAINT_ERR = 6