Question

I have a Mysql table with DATE column , default ‘0000-00-00’. If I try to call, for instance,
em.find(MyTable.class,pk_value);
and it happens to be a record in database with default date value ‘0000-00-00’, an exception is thrown(
“java.sql.SQLException: Value … cannot be represented as java.sql.Date”. The same error happens for DateTime columns with default ‘0000-00-00 00:00:00’.
Is it any way to tell EntityManager that such values are ok ?
Thanks.

Answer 1

What helps is setting JDBC driver’s zeroDateTimeBehavior property to convertToNull.

See http://ondra.zizka.cz/stranky/programovani/java/index.texy
(look for “SQLException for zero DATETIME or TIMESTAMP column? Use zeroDateTimeBehavior”).

jdbc:mysql://localhost/test?zeroDateTimeBehavior=convertToNull