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Extending HCL OneDB™Beyond standard relational database objects, HCL OneDB™ can be extended to handle specialized data types, access methods, routines, and other objects. HCL OneDB™ includes many built-in extensions that are fully integrated in the database server. HCL OneDB™ also provides DataBlade® modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for HCL OneDB™.
HCL OneDB™ extensions and DataBlade® modulesThese topics describe how to use built-in database extensions and separately installed DataBlade® modules.
TimeSeries Data User's GuideThe HCL OneDB™ TimeSeries Data User's Guide contains information to assist you in using the TimeSeries extension with HCL OneDB™.
Calendar routinesYou can use calendar routines to manipulate calendars.
CalStartDate functionThe CalStartDate function takes a calendar name and returns a DATETIME value that contains the start date of that calendar.

CalStartDate function

The CalStartDate function takes a calendar name and returns a DATETIME value that contains the start date of that calendar.

Syntax

CalStartDate(cal_name    lvarchar)
returns datetime year to fraction(5);

The equivalent API function is ts_cal_startdate().

The start date of the specified calendar.

The following example returns the start dates of all the calendars in the CalendarTable table:

select c_name, CalStartDate(c_name) from CalendarTable;