Data Source / Query Executer Property that provides the location of a data adapter resource to be used for the dataset. Flag that sets a default value for the autoCommit attribute of JDBC data adapters.
By default no value is set, which means that setAutoCommit is not called on JDBC connections created by data adapter. Flag that sets a default value for the readOnly attribute of JDBC data adapters.
By default no value is set, which means that setReadOnly is not called on JDBC connections created by data adapter. Property that sets a default value for the transactionIsolation attribute of JDBC data adapters.
By default no value is set, which means that setTransactionIsolation is not called on JDBC connections created by data adapter. Possible values are:

• NONE
• READ_UNCOMMITTED
• READ_COMMITTED
• REPEATABLE_READ
• SERIALIZABLE

See the documentation of java.sql.Connection for details on the transaction isolation types.