Error Saving and getting blob from database SQL oracle

Question

I\'m trying to save a CLOB into the database and recovering it, but I\'m getting an SQLException:

Caused by: java.sql.SQLException: Lob read/write functions          


        

Answer 1

Setting the hibernate property

<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false"/>

sorved the problem for me.

Setting the lobCreator for SessionFactory to NonContextualLobCreator is probably a better solution (not tried yet).

However I'm not sure what causes this error.

Answer 2

I encountered a similar problem in one of the projects, setting

updatable = false

fixed the issue for me.

Example:

@Lob
@Column(name = "CONTENT", updatable = false)
Blob content;

Hibernate somehow tries to re-save the content, even when it was not changed.