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SQL programmingYou can use the HCL OneDB™ implementation of the SQL language to develop applications for HCL OneDB™ database servers.
Guide to SQL: ReferenceThe HCL OneDB™ Guide to SQL: Reference contains the reference information for the system catalog tables, data types, and environment variables of the HCL OneDB™ dialect of the SQL language, as implemented in HCL OneDB™. These topics also include information about the stores_demo, sales_demo, and superstore_demo databases that are included with HCL OneDB™.
Data typesEvery column in a table in a database is assigned a data type. The data type precisely defines the kinds of values that you can store in that column.
Extended Data Types
Complex data typesA complex data type can store one or more values of other built-in or extended data types.
Collection Data Types
Accessing collection data

Accessing collection data

About this task

To access the elements of a collection column, you must fetch the collection into a collection variable and modify the contents of the collection variable. Collection variables can be either of the following types:

Variables in an SPL routine
For more information, see the HCL OneDB™ Guide to SQL: Tutorial.
Host variables in programs
For more information, see the HCL OneDB ESQL/C Programmer's Manual.

You can also use nested dot notation to access collection data. For more about accessing elements of a collection, see the HCL OneDB Guide to SQL: Tutorial.

Important: Collection data types are not valid as arguments to functions that are used for functional indexes.