papayamilkshake

• Sep 17th, 2007

 

Its not really a function as per se; it is a process, method or concept of capturing dynamic data resulting from the server responses and resuing it in the script (as compared to parameterization).  The best training material for correlation (maunal or auto) is its documentation that comes together with the installer, or you can sign up for an account with the mercury/hp support and access the KB article 11806 which discuss the concept at a deeper level. 

For myself, I documented in my old site a little bit of details of the concept:
http:// loadrunnertnt.blogspot . com/2007/05/scripts-auto-or-manual-correlation . html

Regards
papayamilkshake
LoadRunner TnT @ loadrunnertnt . com

reachsanthan

 Profile Answers by reachsanthan 

• Apr 3rd, 2008

 

Capturing dynamic values in server response is called correlation. we can do it in 2 ways
1.Manual correlation
2. Auto Correlation

Manual Correlation syntax:
web_reg_save_param("<ParamName>","LB=<Leftboundary>","RB=<Rightboundary>","ORD=ALL",LAST);

deeps_aj

 Profile Answers by deeps_aj 

• Apr 3rd, 2008

 

Sometimes "Scan for Correlation" fails to find values that must be correlated for proper playback. Example: The server returns to the browser a time stamp, formatted as 12:13:14. JScript in the browser reformats and sends it to the server on the next request as 121314.
Scan for correlation will never find this. The string from the server must exactly match the string to the server. In such a case, manual correlation is the only solution.

-Deepika

jimroger

 Profile 

• Sep 14th, 2009

 

Manual Correlation can be done in 3 ways

1) SnapShot Comparison
2) Vuser(Script) Comparion
3) Manual Check

m tulasi ram

• Oct 17th, 2018

 

web_reg_save_param("param name","LB=","RB=",LAST);
LB= left boundary of the dynamic value.
RB=right boundary of the dynamic value.