Package org.hibernate.dialect

package org.hibernate.dialect

This package abstracts over the multifarious dialects of SQL understood by the databases supported by Hibernate. A concrete implementation of Dialect defines the variant understood by a certain RDBMS.

• An integrator may directly extend Dialect in order to provide support for a database unknown to Hibernate, or
• a program may extend one of the concrete Dialects in this package in order to customize certain aspects of the SQL generated by Hibernate.

A concrete Dialect may be explicitly selected using "hibernate.dialect", but this is not usually necessary unless a program uses a custom implementation.

See Also:

• Dialect

Related Packages

Package	Description
org.hibernate	This package defines the central Hibernate APIs, beginning with SessionFactory, which represents an instance of Hibernate at runtime and is the source of new instances of Session and StatelessSession, the most important APIs exposing persistence-related operations for entities.
org.hibernate.dialect.aggregate	Support for Dialect-specific aggregate column types, including user-defined composite types, and JSON or XML types.
org.hibernate.dialect.function	Contains implementations of SqmFunctionDescriptor describing a range of relatively-sophisticated SQL functions available in various dialects.
org.hibernate.dialect.hint	Deprecated, for removal: This API element is subject to removal in a future version.
org.hibernate.dialect.identity	Support for Dialect-specific identity column handling.
org.hibernate.dialect.lock	Support for Dialect-specific locking strategies.
org.hibernate.dialect.pagination	Support for Dialect-specific pagination strategies.
org.hibernate.dialect.sequence	Support for Dialect-specific sequence handling.
org.hibernate.dialect.temptable	Support for temporary tables.
org.hibernate.dialect.type	Internal package containing dialect-specific implementations of JdbcType.
org.hibernate.dialect.unique	Support for Dialect-specific unique constraint definition.

Class	Description
AbstractTransactSQLDialect	An abstract base class for Sybase and MS SQL Server dialects.
AzureSQLServerDialect	A SQL dialect for Azure SQL Server.
BooleanDecoder	Utility for decoding boolean representations.
CockroachDialect	A SQL dialect for CockroachDB 23.1 and above.
ColumnAliasExtractor	Strategy for extracting the unique column alias out of a ResultSetMetaData.
Database	A list of relational database systems for which Hibernate can resolve a Dialect.
DatabaseVersion	Details about the underlying database, as understood by a Dialect.
DB2Dialect	A SQL dialect for Db2 for LUW (Linux, Unix, and Windows) version 10.5 and above.
DB2GetObjectExtractor<T>	Variant of the GetObjectExtractor that catches a NullPointerException, because the DB2 JDBC driver runs into that exception when trying to access a null value with the getObject(int, Class) and getObject(String, Class) methods.
DB2iDialect	A SQL dialect for DB2 for IBM i version 7.1 and above, previously known as "DB2/400".
DB2zDialect	A SQL dialect for DB2 for z/OS version 12.1 and above, previously known as: "Db2 UDB for z/OS", and "Db2 UDB for z/OS and OS/390".
Dialect	Represents a dialect of SQL implemented by a particular RDBMS.
Dialect.SizeStrategy	Pluggable strategy for determining the Size to use for columns of a given SQL type.
DialectLogging	Logging related to Hibernate dialects
DmlTargetColumnQualifierSupport	Indicates the level of qualifier support used by the dialect when referencing a column.
FunctionalDependencyAnalysisSupport	Dialect support information for primary key functional dependency analysis within GROUP BY and ORDER BY clauses.
FunctionalDependencyAnalysisSupportImpl
H2Dialect	A SQL dialect for H2.
H2Dialect.OrdinalParameterMarkerStrategy
HANADialect	An SQL dialect for the SAP HANA Platform and Cloud.
HANADialect.HANABlobType
HANAServerConfiguration	Utility class that extracts some initial configuration from the database for HANADialect.
HSQLDialect	A SQL dialect for HSQLDB (HyperSQL) 2.6.1 and above.
InnoDBStorageEngine	Represents the InnoDB storage engine.
LobMergeStrategy	Strategy for how dialects need LOB values to be merged.
MariaDBDialect	A SQL dialect for MariaDB 10.5 and above.
MyISAMStorageEngine	Represents the MyISAM storage engine.
MySQLDialect	A SQL dialect for MySQL 8 and above.
MySQLServerConfiguration	Utility class that extract some initial configuration from the database for MySQLDialect and related dialects.
MySQLStorageEngine	This interface defines how various MySQL storage engines behave in regard to Hibernate functionality.
NationalizationSupport	Indicates if and how a database supports the use of nationalized character data (Unicode).
NullOrdering	The order of null.
OracleDialect	A SQL dialect for Oracle 19c and above.
OracleServerConfiguration	Utility class that extract some initial configuration from the database for OracleDialect.
OracleTypes	The Oracle specific JDBC type code.
PostgresPlusDialect	An SQL dialect for Postgres Plus
PostgreSQLDialect	A SQL dialect for PostgreSQL 13 and above.
PostgreSQLDriverKind
Replacer
RowLockStrategy	The strategy for rendering which row to lock with the FOR UPDATE OF clause.
SelectItemReferenceStrategy	Strategies for referring to a select item.
SimpleDatabaseVersion	Simple version of DatabaseVersion
SpannerDialect	A SQL dialect for Cloud Spanner.
SQLServerDialect	A dialect for Microsoft SQL Server 2012 and above.
SybaseASEDialect	A SQL dialect for Sybase Adaptive Server Enterprise 16 and above.
SybaseDialect	Superclass for all Sybase dialects.
SybaseDriverKind
TimeZoneSupport	Describes the extent to which a given database supports the SQL with time zone types.