What is dialect class in Hibernate?

  • To connect to any database with hibernate, we need to specify the SQL dialect class in hibernate.cfg.xml

     Ex: To connect to oracle database we need to specify oracle dialect class in configuration xml as below.

  • Dialect class is java class, which contains code to map between java language data type database data type.
  • All Dialect classes extend the Dialect abstract class.
  • Dialect is used to convert HQL statements to data base specific statements.

Hibernate SQL Dialects:

RDBMS Dialect
DB2 org.hibernate.dialect.DB2Dialect
DB2 AS/400 org.hibernate.dialect.DB2400Dialect
DB2 OS390 org.hibernate.dialect.DB2390Dialect
PostgreSQL 8.1 org.hibernate.dialect.PostgreSQL81Dialect
PostgreSQL 8.2 and later org.hibernate.dialect.PostgreSQL82Dialect
MySQL5 org.hibernate.dialect.MySQL5Dialect
MySQL5 with InnoDB org.hibernate.dialect.MySQL5InnoDBDialect
MySQL with MyISAM org.hibernate.dialect.MySQLMyISAMDialect
Oracle (any version) org.hibernate.dialect.OracleDialect
Oracle 9i org.hibernate.dialect.Oracle9iDialect
Oracle 10g org.hibernate.dialect.Oracle10gDialect
Oracle 11g org.hibernate.dialect.Oracle10gDialect
Sybase ASE 15.5 org.hibernate.dialect.SybaseASE15Dialect
Sybase ASE 15.7 org.hibernate.dialect.SybaseASE157Dialect
Sybase Anywhere org.hibernate.dialect.SybaseAnywhereDialect
Microsoft SQL Server 2000 org.hibernate.dialect.SQLServerDialect
Microsoft SQL Server 2005 org.hibernate.dialect.SQLServer2005Dialect
Microsoft SQL Server 2008 org.hibernate.dialect.SQLServer2008Dialect
SAP DB org.hibernate.dialect.SAPDBDialect
Informix org.hibernate.dialect.InformixDialect
HypersonicSQL org.hibernate.dialect.HSQLDialect
H2 Database org.hibernate.dialect.H2Dialect
Ingres org.hibernate.dialect.IngresDialect
Progress org.hibernate.dialect.ProgressDialect
Mckoi SQL org.hibernate.dialect.MckoiDialect
Interbase org.hibernate.dialect.InterbaseDialect
Pointbase org.hibernate.dialect.PointbaseDialect
FrontBase org.hibernate.dialect.FrontbaseDialect
Firebird org.hibernate.dialect.FirebirdDialect


Source:
Hibernate documentation

Posted in hibernate and tagged , .

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code class="" title="" data-url=""> <del datetime=""> <em> <i> <q cite=""> <strike> <strong> <pre class="" title="" data-url=""> <span class="" title="" data-url="">