jdbc: support categorized exceptions and SQLSTATE codes #119
Description
Return sqlStateSQL or sqlStateSQL99 (they are equal) from
DatabaseMetaData.getSQLStateType(). Now the value is 0, which is not correct.
Use SQLSTATE codes in SQLException where appropriate.
Use categorized SQL exceptions where possible:
- SQLNonTransientException
- SQLTransientException
- SQLRecoverableException
Consider also using of BatchUpdateException and SQLClientInfoException.
Test all this new stuff.
See also: https://docs.oracle.com/javase/tutorial/jdbc/basics/sqlexception.html
This issue is mostly optional (AFAIU), but DatabaseMetaData.getSQLStateType() should provide a correct value.