The aim of Open SQL for Java is to allow application developers to implement database access independently of a particular database system. This goal is achieved by:
Defining a subset of SQL that is comprehensible for all database systems.
More information: Open SQL Grammar
Defining a subset of JDBC that is compatible with all database systems. This section deals with Open SQL/JDBC.
Although JDBC is a standard that is recognized by the Java community, existing implementations of various database vendors differ in details. Open SQL/JDBC is the JDBC-compatible implementation of the essential parts of the JDBC standard. This implementation allows you to access in a portable way all database systems that are supported by SAP. Open SQL/JDBC implements the interfaces from the Java package java.sql.* .
Using Open SQL/JDBC, you can select and modify data in existing database tables. The tables are created in the Java Dictionary.
More information about Java Dictionary: Providing Java Dictionary Tables and Data Types
More information about the most important aspects of Open SQL/JDBC: