DB2 Version 10.1 for Linux, UNIX, and Windows

SQLU_LSN data structure

This union contains the definition of the log sequence number. A log sequence number (LSN) represents a relative byte address within the database log. All log records are identified by this number. An LSN represents the byte offset of the log record from the beginning of the database log.

Table 1. Fields in the SQLU-LSN Union
Field Name	Data Type	Description
lsnChar	Array of UNSIGNED CHAR	Specifies the 6-member character array log sequence number.
lsnWord	Array of UNSIGNED SHORT	Specifies the 3-member short array log sequence number.

Note: The SQLU_LSN structure has been replaced by the db2LSN structure.

API and data structure syntax

typedef union SQLU_LSN
{
   unsigned char   lsnChar[6];
   unsigned short  lsnWord[3];
} SQLU_LSN;