5--Basic usage of Hibernate--4 9 other common configuration properties

Hibernate other common Configuration properties:

⊙hibernate.show_sql: Is the SQL statement used at the bottom of the console output hibernate persistence operation. Only a value of true and false is two.

⊙hibernate.format_sql: Whether to turn SQL statements into well-formed SQL. Accept only true and false values of two.

⊙hibernate.use_sql_comments: Whether to add comments that help debug in hibernate-generated SQL statements. Only true and false values are accepted.

⊙hibernate.jdbc.fetch_size: Specifies the size of the number of JDBC fetches. It accepts an integer value, and its essence is to call the Statement.setfetchsize () method.

⊙hibernate.jdbc.batch_size: Specifies the size of the bulk update hibernate uses JDBC2. It accepts an integer value, and it is recommended to take a value between 5~30.

⊙hibernate.connection.autocommit: Sets whether to submit automatically. It is generally not recommended to turn on autocommit.

⊙hibernate.hbm2ddl.auto: Sets whether database tables are automatically established based on the mappings of persisted classes when creating sessionfactory. This property can be a validate, update, create, and Create-drop 4 values.

∮create: The table will be re-built each time you create a sessionfactory.

∮create-drop: Each time the sessionfactory is turned off, the program automatically drop the data table you just created.

∮update: Each time you create a sessionfactory, Hibernate automatically builds the table if there are no tables in the database that correspond to the persisted class, and if a table already exists in the database that corresponds to the persisted class, the existing data tables and data are kept, but only the data is updated or inserted.

∮validate:

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5--Basic usage of Hibernate--4 9 other common configuration properties