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SQL programmingYou can use the HCL OneDB™ implementation of the SQL language to develop applications for database servers.
Guide to SQL: TutorialThe HCL OneDB™ Guide to SQL: Tutorial shows how to use basic and advanced structured query language (SQL) to access and manipulate the data in your databases. It discusses the data manipulation language (DML) statements as well as triggers and stored procedure language (SPL) routines, which DML statements often use.
Select data from complex types
Select rows within a table hierarchy
Select rows of the supertable without the ONLY keyword

Select rows of the supertable without the ONLY keyword

A table hierarchy allows you to construct, in a single SQL statement, a query whose scope is a supertable and its subtables. A query on a supertable returns rows from both the supertable and its subtables. The following query shows a query on the person table, which is the root supertable in the table hierarchy.

Figure 1: Query

SELECT * FROM person

Query result returns all columns in the supertable and those columns in subtables (employee and sales_rep) that are inherited from the supertable. A query on a supertable does not return columns from subtables that are not in the supertable. The query result shows the name, address, and soc_sec columns in the person, employee, and sales_rep tables.

Figure 2: Query result

name        Rogers, J.
address     ROW(102 Ruby Ave, Belmont, CA, 69055)
soc_sec     454849344

name        Sallie, A. 
address     ROW(134 Rose St, San Carlos, CA, 69025)
soc_sec     348441214
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