Typical Application Scenario
This section describes the application development in a typical scenario, helping you quickly learn and master the HetuEngine development process and know key functions.
Scenario
Assume that a user develops an application and needs to perform the join operation on table A of the Hive data source and table B of the MPPDB data source. In this case, HetuEngine can be used to implement data query of the Hive data source, the process is as follows:
- Connect to the HetuEngine JDBC server.
- Assemble SQL statements.
- Execute SQL statements.
- Parse the returned result.
- Close the HetuEngine JDBC Server connection.
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