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Client APIs and toolsYou can use the HCL OneDB™ implementation of client APIs to develop applications for HCL OneDB™ database servers.
HCL OneDB™ JDBC Driver GuideThe HCL OneDB™ JDBC Driver Programmer's Guide describes how to install, load, and use HCL OneDB™ JDBC Driver to connect to the HCL OneDB™ database from within a Java™ application.
Appendixes
Convert internal HCL OneDB™ data typesFor your Java™ application to work with the internal server representation of HCL OneDB™ data types, use the IfxToJavaType class. For example, if your application is using the HCL® OneDB® Change Data Capture API, you can use the IfxToJavaType class to interpret the byte stream.
The IfxToJavaType classThe IfxToJavaType class handles all the HCL OneDB™ to Java™ data type conversions. Separate methods are provided for converting each HCL OneDB™ data type.
The convertDaysToDate() methodThe convertDaysToDate() method converts days to year, date, or month. The convertDaysToDate() method handles negative days, interpreted as backwards from December 31, 1899 as 0. The convertDaysToDate() method interprets January 1, 1900 as 1. No dates before January 1, 0000 are allowed. The method relies on HCL OneDB™ to generate valid dates.

The convertDaysToDate() method

The convertDaysToDate() method converts days to year, date, or month. The convertDaysToDate() method handles negative days, interpreted as backwards from December 31, 1899 as 0. The convertDaysToDate() method interprets January 1, 1900 as 1. No dates before January 1, 0000 are allowed. The method relies on HCL OneDB™ to generate valid dates.

Method signature

public static java.sql.Date convertDaysToDate (int dt)

Input parameter

dt: The number of days since January 1, 1900 (as 1).