Answer Posted / nagarjuna reddy yedla

In loadrunner to capture the Dyanmic value in each run of
the script execution.
Two types of correlation are there in loadrunner.
1.Auto correlation 2.manual correlaion
The function of correlation is Web_reg_save_param("param
name","Lb=","RB=","ORD=",LAST);

web = webapplication(HTTP)
reg = Regestration
save = saving the next comming dynamic value into the
parameter name
param = parameter

The web_reg_save_param() function registers a request to
retrivew dynamic information from the downloaded page and
save it to the above mentoned parameter name.
1.parameter name:-it captures the newly server generated
value and replace through the script.
LB: it indicates the left boundary value of the correlted
value.
RB: it indicates the right boundary value of the correlated
value.
ORD value: ordinal vlue. The specific position of the
correlated value with the left and right boundary match
cases.

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