fix outdated section of user guide relating to Dialects

Author: gavinking

documentation/src/main/asciidoc/userguide/chapters/jdbc/Database_Access.adoc

@@ -183,7 +183,7 @@ This usage is discouraged and not discussed here.
 [[database-connectionprovider-isolation]]
 === ConnectionProvider support for transaction isolation setting
 
-All of the provided ConnectionProvider implementations, other than `DataSourceConnectionProvider`, support consistent setting of transaction isolation for all `Connections` obtained from the underlying pool.
+All the provided `ConnectionProvider` implementations, apart from `DataSourceConnectionProvider`, support consistent setting of transaction isolation for all `Connections` obtained from the underlying pool.
 The value for `hibernate.connection.isolation` can be specified in one of 3 formats:
 
 * the integer value accepted at the JDBC level.
@@ -252,68 +252,12 @@ Therefore for user-provided connection, the connection is acquired right away an
 [[database-dialect]]
 === Database Dialect
 
-Although SQL is relatively standardized, each database vendor uses a subset and superset of ANSI SQL defined syntax.
-This is referred to as the database's dialect.
-Hibernate handles variations across these dialects through its `org.hibernate.dialect.Dialect` class and the various subclasses for each database vendor.
-
-In most cases, Hibernate will be able to determine the proper Dialect to use by asking some questions of the JDBC Connection during bootstrap.
-For information on Hibernate's ability to determine the proper Dialect to use (and your ability to influence that resolution), see <<chapters/portability/Portability.adoc#portability-dialectresolver,Dialect resolution>>.
-
-If for some reason it is not able to determine the proper one or you want to use a custom Dialect, you will need to set the `hibernate.dialect` setting.
-
-.Provided Dialects
-[width="100%",cols="28%,72%",options="header",]
-|=======================================================================
-|Dialect (short name) |Remarks
-|Cache71 |Support for the Caché database, version 2007.1.
-|CockroachDB192 |Support for the CockroachDB database version 19.2.
-|CockroachDB201 |Support for the CockroachDB database version 20.1.
-|CUBRID |Support for the CUBRID database, version 8.3. May work with later versions.
-|DB2 |Support for the DB2 database, version 8.2.
-|DB297 |Support for the DB2 database, version 9.7.
-|DB2390 |Support for DB2 Universal Database for OS/390, also known as DB2/390.
-|DB2400 |Support for DB2 Universal Database for iSeries, also known as DB2/400.
-|DB2400V7R3 |Support for DB2 Universal Database for i, also known as DB2/400, version 7.3
-|DerbyTenFive |Support for the Derby database, version 10.5
-|DerbyTenSix |Support for the Derby database, version 10.6
-|DerbyTenSeven |Support for the Derby database, version 10.7
-|Firebird |Support for the Firebird database
-|FrontBase |Support for the Frontbase database
-|H2 |Support for the H2 database
-|HANACloudColumnStore |Support for the SAP HANA Cloud database column store.
-|HANAColumnStore |Support for the SAP HANA database column store, version 2.x. This is the recommended dialect for the SAP HANA database. May work with SAP HANA, version 1.x
-|HANARowStore |Support for the SAP HANA database row store, version 2.x. May work with SAP HANA, version 1.x
-|HSQL |Support for the HSQL (HyperSQL) database
-|Informix |Support for the Informix database
-|Ingres |Support for the Ingres database, version 9.2
-|Ingres9 |Support for the Ingres database, version 9.3. May work with newer versions
-|Ingres10 |Support for the Ingres database, version 10. May work with newer versions
-|Interbase |Support for the Interbase database.
-|JDataStore |Support for the JDataStore database
-|McKoi |Support for the McKoi database
-|Mimer |Support for the Mimer database, version 9.2.1. May work with newer versions
-|MySQL5 |Support for the MySQL database, version 5.x
-|MySQL5InnoDB |Support for the MySQL database, version 5.x preferring the InnoDB storage engine when exporting tables.
-|MySQL57InnoDB |Support for the MySQL database, version 5.7 preferring the InnoDB storage engine when exporting tables. May work with newer versions
-|MariaDB |Support for the MariaDB database. May work with newer versions
-|MariaDB53 |Support for the MariaDB database, version 5.3 and newer.
-|Oracle8i |Support for the Oracle database, version 8i
-|Oracle9i |Support for the Oracle database, version 9i
-|Oracle10g |Support for the Oracle database, version 10g
-|Pointbase |Support for the Pointbase database
-|PostgresPlus |Support for the Postgres Plus database
-|PostgreSQL81 |Support for the PostgrSQL database, version 8.1
-|PostgreSQL82 |Support for the PostgreSQL database, version 8.2
-|PostgreSQL9 |Support for the PostgreSQL database, version 9. May work with later versions.
-|Progress |Support for the Progress database, version 9.1C. May work with newer versions.
-|SAPDB |Support for the SAPDB/MAXDB database.
-|SQLServer |Support for the SQL Server 2000 database
-|SQLServer2005 |Support for the SQL Server 2005 database
-|SQLServer2008 |Support for the SQL Server 2008 database
-|Sybase11 |Support for the Sybase database, up to version 11.9.2
-|SybaseAnywhere |Support for the Sybase Anywhere database
-|SybaseASE15 |Support for the Sybase Adaptive Server Enterprise database, version 15
-|SybaseASE157 |Support for the Sybase Adaptive Server Enterprise database, version 15.7. May work with newer versions.
-|Teradata |Support for the Teradata database
-|TimesTen |Support for the TimesTen database, version 5.1. May work with newer versions
-|=======================================================================
+Although SQL is now relatively standardized&mdash;much more so than in the past&mdash;it's still the case that each database vendor implements a different dialect of SQL that, while overlapping significantly with ANSI SQL, forms neither a subset, nor a superset, of the standard.
+
+Hibernate abstracts over variations between dialects of SQL via the class `org.hibernate.dialect.Dialect`.
+
+- There's a subclass of `Dialect` for each supported relational database in the package `org.hibernate.dialect`.
+- Additional community-supported ``Dialect``s are available in the separate module `hibernate-community-dialects`.
+
+In Hibernate 6, it's no longer necessary to explicitly specify a dialect using the configuration property `hibernate.dialect`, and so setting that property is now discouraged.
+(An exception is the case of custom user-written ``Dialect``s.)