May I know what I am missing, I am getting errors as per below, [after code]

data TestFullfilment;
       merge      mkMaster._membship_info_ (in = a)
                  mkMaster._members_info_ (in = b)
                  mkMaster._contact_info_ (in = c) ;
                  by membship_id ;
                  if a= 1 and b = 1 and c = 1 ;
                  if membship_id = "50098850";
run ;

ERROR: Libname MKMASTER is not assigned.
ERROR: Libname MKMASTER is not assigned.
ERROR: Libname MKMASTER is not assigned.

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Aloysius LowCommented:
do you know the physical location on the server the library mkmaster is supposed to point to?

you can do library assignment by using the following code:
libname mkmaster "[full path to physical location]";

e.g. for windows, if the datasets where mkmaster refers to resides in D:\data\mydata/, then the code would look like: libname mkmaster "D:\data\mydata";
for unix/aix/solaris, if the datasets where mkmaster refers to resides in /data/mydata/, then the code would look like: libname mkmaster "/data/mydata/";

however one thing to note is this way of doing things will override whatever security your sas administrator may have set for the library/tables in the library, so if there's a metadata server involved, it is not the best way to do things. rather, the sas administrator should define the library in the management console.
premkripalaniAuthor Commented:
my library is in the SAS folders.
for example, if I want to open the mkMaster._membship_info_ table, I follow this steps
Look in : SAS Folders, ABC LTD, Librraries,Production1, mkMaster

May I know, what should be the code to assign the library.
Aloysius LowCommented:
can you do a screenshot or something? i believe you are using EG4.2 right? sorry, i'm not using EG4.2, so i'm not too sure here

from your description, it seems like you are using a folder path which is already starts from a certain location on the server, sort of a logical start point. if this is the case, it's quite difficult to help. what I can say is that your libname statement should look like:
libname mkmaster "[path to SAS Folders]/ABC LTD/Libraries/Production1/mkMaster";
Again, the direction of the slash depends on your server.

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premkripalaniAuthor Commented:
all good,
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