How do I suppress the Proc Compare log warning message for 0 observations in each data set?

[Sarah-R]

When running a Proc Compare, I get the warning message:  "WARNING: No matching observations were found." 

Is there any way to suppress this log message? 

The BASE and COMPARE data sets both have 0 observations each, but they do have similar columns and column attributes.  I am interested in producing a Proc Compare output, but, also, have no warning message, at the same time.

[SASJedi · Accepted solution]

There is no PROC COMPARE or SAS System option I am aware of that can suppress printing WARNING or ERROR messages to the log.  @Sajid01 suggested reviewing SAS Usage Note 24487: Warning messages in the SAS® log cannot be suppressed. For example:

proc sql;
create table table1 like sashelp.cars(keep=Make--MSRP);
create table table2 like sashelp.cars(keep=Make--Origin Invoice);
quit;
proc compare base=table1 compare=table2;
run;

SAS Log:

54   proc compare base=table1 compare=table2;
NOTE: Writing HTML Body file: sashtml7.htm
55   run;

NOTE: No observations in data set WORK.TABLE1.
NOTE: No observations in data set WORK.TABLE2.
WARNING: No matching observations were found.
NOTE: There were 0 observations read from the data set WORK.TABLE1.
NOTE: There were 0 observations read from the data set WORK.TABLE2.
NOTE: PROCEDURE COMPARE used (Total process time):
      real time           0.57 seconds
      cpu time            0.25 seconds

Results:

The COMPARE Procedure                                                                                 
Comparison of WORK.TABLE1 with WORK.TABLE2                                                            
(Method=EXACT)                                                                                        
                                                                                                      
Data Set Summary                                                                                      
                                                                                                      
Dataset               Created          Modified  NVar    NObs                                         
                                                                                                      
WORK.TABLE1  16NOV23:07:22:23  16NOV23:07:22:23     6       0                                         
WORK.TABLE2  16NOV23:07:22:23  16NOV23:07:22:23     5       0                                         
                                                                                                      
                                                                                                      
Variables Summary                                                                                     
                                                                                                      
Number of Variables in Common: 4.                                                                     
Number of Variables in WORK.TABLE1 but not in WORK.TABLE2: 2.                                         
Number of Variables in WORK.TABLE2 but not in WORK.TABLE1: 1.                                         

To temporarily re-direct the log output using PROC PRINTTO (also suppressing all of the other log information generated by PROC COMPARE). For example:

proc printto log=_temporary_;
run;

proc compare base=table1 compare=table2;
run;

proc printto;
run;

you get the same results, but the log is much more sparse:

59   proc printto log=_temporary_;
60   run;

NOTE: PROCEDURE PRINTTO used (Total process time):
      real time           0.00 seconds
      cpu time            0.01 seconds

[Sajid01]

Hello @Sarah-R 
Please have a look at this http://support.sas.com/kb/24/487.html
As@SASJedi suggested you may forward the log  output to an external file.