Open string parameters

The format for parameters in the open string for the DTM XA Interface is:

-Nlrm_name -Uusername -Ppassword [-Llogfile_name] 
 [-Ttraceflags] [-V11] [-O1] [-O-1]

Table 3-1 describes each component of the open string.

**Table 3-1: Sybase X/Open XA open string parameters**
Parameter	Meaning
lrm_name	The name of the LRM as defined in the XA configuration file.
username	The user name used to log in to Adaptive Server. See “dtm_tm_role required for username” below for more information.
password	The password accompanying the user name.
logfile_name	The fully qualified file name to which the XA Interface writes tracing information (optional). The XA Interface initializes the log file and trace flag settings with the initial xa_open() call. If no logfile_name is specified, then the DTM XA Interface logs information to a file named syb_xa_log in the current directory.
traceflags	Trace flags control the output that is written to the log file (optional). See “Parameters for [all] section of XA configuration file” in this document for a list of valid trace flags.
-V11	Specifies Open Client version 11 behavior for backward compatibility (optional).
-O1 or -O-1	Specifies an option for transaction operation. At this time only -O1 (tightly coupled transaction branches) is supported. -O1 sets the option. -O-1 clears the option. -O-1 is the default. WARNING! See “Tightly coupled transactions” in chapter 4 of this document before setting -O1.