Hibernate could not fetch the SequenceInformation from the database

Question

I have recently updated hibernate in my application to 5.4.4.Final. And now, I have faced with the following exception during deployment.

ERROR [org.hibernat         


        

Answer 1

You simple used the dafault MAX_VALUE of a sequence, which is too high for the Java LONG datatype.

Fortunatelly you may any time reset the MAX_VALUE with ALTER SEQUENCE to a lower number that will cause no problems.

Example

CREATE SEQUENCE SEQ_TEST START WITH 1 INCREMENT BY 1 NOCYCLE;


select MAX_VALUE from ALL_SEQUENCES where SEQUENCE_NAME = 'SEQ_TEST';

 MAX_VALUE
----------
9999999999999999999999999999


ALTER SEQUENCE SEQ_TEST
  MAXVALUE 9223372036854775807;

select MAX_VALUE from ALL_SEQUENCES where SEQUENCE_NAME = 'SEQ_TEST';

 MAX_VALUE
----------
9223372036854775807

and BTW

it looks strange that hibernate tries to read metadata about all sequences, not only about used in my application.

Hibernate uses select * from all_sequences as an Oracle Dialect to get the sequence information. Note that ALL_SEQUENCES does not mean all existing sequences, but all sequences, that your Hibernate database user (DBUSER from the connection pool) is granted to use - which is of course absolute correct.