What is the difference between SchemaUpdate and SchemaExport in Hibernate.
What is the difference between SchemaUpdate and SchemaExport in Hibernate. SchemaUpdate SchemaExport
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What is the difference between SchemaUpdate and SchemaExport in Hibernate.
SchemaExport (aka hbm2ddl) is tool that generates database schema (whole, not partial) from Hibernate mappings. SchemaExport needs to aware of dialect, but it does not consult existing database. Generated DDL statements can then be executed and/or saved to file and/or printer to standard out.
SchemaUpdate updates existing schema. To some extent it figures out which DDL statement should be executed to make existing database match to modified Hibernate mappings.
Good source for more detailed information is Hibernate Core Reference Manual – Chapter 22. Toolset Guide.