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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.
Change Data Capture API Programmer's GuideThese topics describe how to program applications to process changed data from HCL OneDB™ databases using the HCL® OneDB® Change Data Capture API.The HCL OneDB™ Change Data Capture API Programmer's Guide describes how to program applications to process changed data from HCL OneDB™ databases using the HCL® OneDB® Change Data Capture API.
Change Data Capture recordsThe Change Data Capture (CDC) records are returned by smart large object read functions and contain the captured data and information about the transaction currently being captured.
The CDC_REC_TIMEOUT recordIndicates that the read call did not return data before the timeout period specified in the cdc_opensess() function.

The CDC_REC_TIMEOUT record

Indicates that the read call did not return data before the timeout period specified in the cdc_opensess() function.

The header specific to the CDC_REC_TIMEOUT record follows the common header. No data follows the headers; the payload size in the common header is 0.

Table 1. Format of the CDC_REC_TIMEOUT record
Section	Size	Description
Sequence number	8 bytes	The sequence number of the last data retrieved from the source database.

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